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US3615595A - Flavored drinking straw - Google Patents

Flavored drinking straw Download PDF

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US3615595A
US3615595A US814271A US3615595DA US3615595A US 3615595 A US3615595 A US 3615595A US 814271 A US814271 A US 814271A US 3615595D A US3615595D A US 3615595DA US 3615595 A US3615595 A US 3615595A
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polymer
methacrylate
drinking straw
acrylate
straw according
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US814271A
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Alvin Guttag
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National Patent Development Corp
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National Patent Development Corp
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • A47G21/183—Drinking straws or the like with means for changing the flavour of the liquid
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/70—Fixation, conservation, or encapsulation of flavouring agents
    • A23L27/74—Fixation, conservation, or encapsulation of flavouring agents with a synthetic polymer matrix or excipient, e.g. vinylic, acrylic polymers

Definitions

  • the present invention relates to a novel drinking straw.
  • Mead U.S. Pat. No. 2,867,536 It has previously been proposed to make a flavor containing drinking straw, Mead U.S. Pat. No. 2,867,536. Mead provides a closure at the bottom of his tube which must be removed at the time of use so that particles of flavoring agent can flow out of the tube into the vessel containing water. Not only is it troublesome to remove this closure but there is the problem of particles packing and not flowing out of the tube. There is also the problem of possible spillage when the closure is removed.
  • Levi U.S. Pat No. 2,983,616 discloses a flavored drinking straw which is a laminate of three layers which are spirally woundaround a mandrel.
  • the outennost layer is made of an impervious material, the middle layer of wet strength paper and the innermost layer of an absorbent material impregnated with a soluble flavor.
  • the intermediate wet strength paper layer and the outer layer are adhered together by an adhesive while the inner absorbent layer and wet strength paper are adhered together by the sticky consistency of the flavoring agent.
  • the method of manufacture of the straw is somewhat cumbersome. Furthermore such straws are not suitable for use with powdery flavorants such as chocolate, tea or coffee for example.
  • Another object is to provide a flavored drinking straw in which the flavoring agent is retained when dry but is readily released when the straw is placed in water.
  • An additional object is to provide a flavored drinking straw containing powdered flavoring agent.
  • the flavoring agent there can be employed chocolate, tea, coffee, strawberry, orange, lemon, lime, cherry, chocolate or vanilla malt.
  • the invention is particularly valuable with powdered water soluble flavoring agents such as powdered chocolate (including alkali treated chocolate), instant coffee powder, instant tea powder and malted milk powder.
  • powdered chocolate including alkali treated chocolate
  • instant coffee powder instant tea powder and malted milk powder.
  • Conventional additives such as sugar can be present, e.g. the chocolate can be a blend of 1 part chocolate with 1.3 parts of sugar 'or with 2 parts of sugar by weight.
  • powdered milk, nonfat dry milk, cream or cream substitutes e.g. coffee powder can be blended with powdered cream or cream substitute.
  • the flavoring agent artificial sweeteners such as calcium cyclamate, sodium cyclamate, sodium saccharin or the like.
  • the flavoring agent is entrapped in the hydrophilic acrylate or methacrylate and upon placing the straw in an aqueous liquid such as water, milk or skim milk the hydrophilic polymer takes up the liquid and the water soluble flavoring agent gradually passes into the aqueous liquid giving a flavored drink.
  • an aqueous liquid such as water, milk or skim milk
  • hydrophilic acrylate or methacrylate polymer there can be employed homopolymer and copolymers of hydroxy lower alkyl acrylates and methacrylates or hydroxy lower alkoxy lower alkyl acrylates or methacrylates, e.g. 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, diethylene glycol monoacrylate, diethylene glycol monomethacrylate, 2- hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3- hydroxypropyl acrylate, 3-hydroxypropyl methacrylate and dipropylene glycol methacrylate.
  • the preferred monomer is 2- hydroxyethyl methacrylate.
  • the water insoluble hydrophilic polymers are swellable in water, usually to 35 to percent.
  • the cross linking-agent is preferably present in an amount of 0.1 to 2.5 percent although as little as 0.05 percent or up to 20 percent of cross-linking agent can be used.
  • the hydrophilic acrylates and methacrylates are nontoxic and naturally nontoxic cross-linking agents are preferred.
  • cross-linking agents include ethylene glycol diacrylate, ethylene glycol dimethacrylate, l,2-butylene dimethacrylate, 1,3-butylene dimethacrylate, 1,4-butylene dimethacrylate, propylene glycol diacrylate, propylene glycol dimethacrylate, diethylene glycol dimethacrylate, dipropylene glycol dimethacrylate, diethylene glycol diacrylate, dipropylene glycol diacrylate, divinyl benzene, divinyl toluene, diallyl tartrate, allyl pyrivate, allyl malate, divinyl tartrate, triallyl melamine, N,N'-methylene bis acrylamide, glycerine trimethacrylate, diallyl maleate, divinyl ether, diallyl monoethylene glycol citrate, ethylene glycol vinyl allyl citrate, allyl vinyl maleate, diallyl itaconate, ethylene glycol diester of it
  • triallyl glucose polyallyl sucrose, e.g. pentaallyl sucrose, sucrose diacrylate, glucose dimethacrylate, pentaerythritol tetraacrylate, sorbitol dimethacrylate, diallyl aconitate, divinyl citraconate, diallyl fumarate, citraconic acid, itaconic acid, fumaric acid, maleic acid, aconitic acid, mono 2-hydroxyethyl itaconate, mono 2-hydroxypropyl itaconate, mono Z-hydroxyethyl maleate, mono 2-hydroxypropyl fumarate, mono methyl itaconate, acrylic acid, methacrylic acid.
  • pentaallyl sucrose sucrose diacrylate, glucose dimethacrylate, pentaerythritol tetraacrylate, sorbitol dimethacrylate, diallyl aconitate, divinyl citraconate, diallyl fumarate, citraconic acid, itac
  • l to 25 percent preferably not over 10 percent of other monomers which are not cross-linking such as alkoxyethyl acrylates and methacrylates, e.g. 2-methoxyethyl acrylate, Z-methoxyethyl methacrylate and 2-ehoxyethyl methacrylate, insaturated amino compounds, e.g.
  • p-aminostyrene 2-amino-4-vinyltoluene, diethylaminoethylacrylate, diethylaminoethyl methacrylate, dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, t-butylaminoethyl methacrylate, piperidinoethyl acrylate, Z-vinyl pyridine, dimethylaminopropyl methacrylate, amides, e.g.
  • the polymers are old per se and are found in the literature.
  • the preferred polymers are Hydron S (Z-hydroxyethyl methacrylate homopolymer which is thermoplastic) and l-lydron (infrequently cross-linked copolymer of 2-hydroxyethyl methacrylate with less than 2 percent ethylene glycol dimethacrylate and thermosetting).
  • the mixture of hydrophilic acrylate or methacrylate polymer and flavoring agent can be prepared by any conventional technique.
  • a mixture of 10 parts of chocolate powder and 90 parts of powdered l-lydron S can be placed in an extruder and extruded in the form of a tube to make the drinking straw.
  • powdered coffee or tea or a mixture of 7 parts sugar and 3 parts chocolate in place of the chocolate powder.
  • hydrophilic acrylate or methacrylate polymer there can be included other polymers such as polyethylene, polypropylene, polyvinyl chloride or polyesters, e.g. polyethylene terephthalate.
  • the straws can also be formed by casting. This procedure is particularly convenient when employing a thermosetting resin such as Hydron.
  • instant coffee powder can be intimately mixed with 100 parts of 2-hydroxyethyl methacrylate and 0.2 part of ethylene glycol and 0.15 part of isopropyl percarbonate (catalyst) and the mixture cast into a mold in the form of a tube and the mixture heated at 40 C. to form a drinking straw having the coffee entrapped therein.
  • FIG. 1 is a plan view of a drinking straw according to the invention
  • FIG. 2 is a broken sectional view of another form of the invention.
  • FIG. 3 is a sectional view along the line 33 of FIG. 2;
  • FIG. 4 is a broken sectional view of another form of the invention.
  • FIG. 1 of the drawings there is shown a drinking straw 2 made of Hydron S containing entrapped coffee.
  • the Hydron S and coffee were dry mixed and then extruded to form the straw.
  • the straw can be made by casting.
  • the straw has pleats at 4 so that it can be bent in any desired direction. While the use of such pleats is preferred since the whirling action imparted to liquid sipped through the straw will aid the coffee to enter the liquid it is not essential to the invention that such a pleated straw be used.
  • the straw can be of conventional tubular design.
  • the straw 2 is shown sitting in a glass 6 filled with water 8. As explained when the drinking straw is placed in water due to the hydrophilic nature of the Hydron S it will take up water and swell.
  • the entrapped coffee is released and goes into the water with the result that when water is sipped through the straw it has a coffee flavor.
  • the straw 2 completely of Hydron S it can be made by extruding a mixture of Hydron S and another polymer such as an olefin polymer, e.g. polyethylene, polypropylene, or ethylene propylene copolymer for example.
  • an olefin polymer e.g. polyethylene, polypropylene, or ethylene propylene copolymer for example.
  • FIG. 2 illustrates another form of drinking straw according to the invention.
  • the drinking straw 10 is prepared by simultaneously extruding a relatively thick external tube 12 of polypropylene and a relatively thin internal tube 14 of Hydron S. Dispersed throughout the inner tube are particles 16 of chocolate and sugar as a result of dry blending the sugar and chocolate with particles of Hydron S prior to the extrusion.
  • the tube 14 In place of forming the tube 14 by extrusion it can also be formed by casting incompletely polymerized Hydron or Hydron S containing the chocolate and sugar between the tube of polypropylene and an inner mandrel and then completing the polymerization of the Hydron or Hydron S and removing the mandrel.
  • FIG. 4 shows a drinking straw 18 made of Hydron.
  • the straw comprises a cylindrical inner tube 20 and a coaxial cylindrical outer tube 22.
  • the annulus formed by tube 20 and outer tube 22 is joined together at the bottom edges of the tubes by surface or plate 24 which has a central opening corresponding to the bo e of inner tube 20.
  • Instant tea powder 26 is supplied to the space between inner tube 20 and outer tube 22 and is retained therein due to the plate-like surface 24.
  • the upper space between tubes 20 and 22 can be closed off in any suitable fashion after the tea is added.
  • the outer tube can be heated in the upper portion sufficiently to soften it and then pinched to seal it as at 28 to the inner tube.
  • the inner tube can be made of the hydrophilic polyacrylate or polymethacrylate and the outer tube made of polyethylene, polypropylene or alternatively the outer tube can be made of the hydrophilic polyacrylate or polymethacrylate and the inner tube made of polyethylene or polypropylene.
  • the form of the invention in which the flavoring agent is intimately mixed with the hydrophilic polymer is preferred since the quickest and most uniform solution of the flavoring agent in the water, milk, skim milk or the like will occur.
  • hydrophilic acrylate or methacrylate polymer there is no need of employing an adhesive in the invention and there is no danger of disintegration of the hydrophilic acrylate or methacrylate polymer in contrast to the situation when using an absorbent fibrous material such'as absorbent cellulose.
  • the hydrophilic polymer and flavoring agent can be dry mixed according to the invention which is particularly advantageous in forming extruded drinking straws. Furthermore there is no need to rely upon the relatively slow absorption which occurs when using absorbent cellulose.
  • a tubular drinking straw having an exposed wall comprising a hydrophilic, water insoluble acrylate or methacrylate polymer selected from the group consisting of hydroxy lower alkyl acrylates, hydroxy lower alkyl methacrylates, hydroxy lower alkoxy lower alkyl acrylates and hydroxy lower alkoxy lower alkyl methacrylates, said polymers having dispersed therein a water soluble drink flavoring agent, whereby when the straw is placed in water the flavoring agent passes by way of the polymer to the water.
  • said polymer is a polymer of a compound selected from the group consisting of 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, diethylene glycol monoacrylate, diethylene glycol monomethacrylate, 2-hydroxypropyl acrylate, 2- hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 3- hydroxypropyl methacrylate, dipropylene glycol methacrylate.
  • a drinking straw according to claim I wherein said polymer is a polymer of a compound selected from the group consisting of hydroxy lower alkyl acrylates and hydroxy lower alkyl methacrylates.
  • a drinking straw according to claim I wherein the straw has a single wall said wall being uniform in composition from its interior to its exterior surface comprising an intimate mix ture of said flavoring agent and said polymerv 5.
  • said polymer is a polymer of 2-hydroxyethyl methacrylate and said flavoring agent is in dry form and comprises a member of the group consisting of coffee, tea and chocolate.
  • a drink straw according to claim 1 wherein the straw has two concentric sidewalls providing a space therebetween, a bottom wall closing the space between the sidewalls and per- 5 manently united to said sidewalls and a water soluble drink flavoring agent in said space, at least one of said walls comprising said polymer.

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  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Table Equipment (AREA)

Abstract

A tubular drinking straw having at least a portion of an exposed wall formed of a water insoluble hydrophilic acrylate or methacrylate polymer. A water soluble flavoring agent is dispersed within the polymer and passes by way of the polymer to flavor the liquid in which the straw is placed.

Description

United States Patent FLAVORED DRINKING STRAW 11 Claims, 4 Drawing Figs.
U.S. Cl 99/138 R, 99/ l 71 B Int. Cl A231 1/26 Field of Search 99/28, 138
mun-nu Us unvn g [56] References Cited UNITED STATES PATENTS 1,996,203 4/1935 Hollingsworth 99/138 2,846,313 8/1958 Menkin et al.... 99/138 2,983,616 5/1961 Levi 99/138 Primary Examiner-Morris O. Wolk Assistant Examiner-Stephen B. Davis AttorneyCushman, Darby and Cushman ABSTRACT: A tubular drinking straw having at least a portion of an exposed wall formed of a water insoluble hydrophil ic acrylate or methacrylate polymer. A water soluble flavoring agent is dispersed within the polymer and passes by way of the polymer to flavor the liquid in which the straw is placed,
FLAVORED DRINKING STRAW The present invention relates to a novel drinking straw.
It has previously been proposed to make a flavor containing drinking straw, Mead U.S. Pat. No. 2,867,536. Mead provides a closure at the bottom of his tube which must be removed at the time of use so that particles of flavoring agent can flow out of the tube into the vessel containing water. Not only is it troublesome to remove this closure but there is the problem of particles packing and not flowing out of the tube. There is also the problem of possible spillage when the closure is removed. Levi U.S. Pat No. 2,983,616 discloses a flavored drinking straw which is a laminate of three layers which are spirally woundaround a mandrel. The outennost layer is made of an impervious material, the middle layer of wet strength paper and the innermost layer of an absorbent material impregnated with a soluble flavor. The intermediate wet strength paper layer and the outer layer are adhered together by an adhesive while the inner absorbent layer and wet strength paper are adhered together by the sticky consistency of the flavoring agent. There is the problem of obtaining adequate impregnation of the absorbent. Additionally, the method of manufacture of the straw is somewhat cumbersome. Furthermore such straws are not suitable for use with powdery flavorants such as chocolate, tea or coffee for example.
Accordingly it is an object of the present invention to make an improved flavored drinking straw.
Another object is to provide a flavored drinking straw in which the flavoring agent is retained when dry but is readily released when the straw is placed in water.
An additional object is to provide a flavored drinking straw containing powdered flavoring agent.
Still further objects and the entire scope of applicability of the present invention will become apparent from the detailed description given hereinafter; it should be understood, however, that the detailed description and specific examples, while indicating preferred embodiments of the invention are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
It has now been found that these objects can be attained by making a drinking straw at least in part of a water insoluble hydrophilic acrylate or methacrylate polymer having entrapped therein a water soluble flavoring agent.
As the flavoring agent there can be employed chocolate, tea, coffee, strawberry, orange, lemon, lime, cherry, chocolate or vanilla malt. The invention is particularly valuable with powdered water soluble flavoring agents such as powdered chocolate (including alkali treated chocolate), instant coffee powder, instant tea powder and malted milk powder. Conventional additives such as sugar can be present, e.g. the chocolate can be a blend of 1 part chocolate with 1.3 parts of sugar 'or with 2 parts of sugar by weight. There can also be present powdered milk, nonfat dry milk, cream or cream substitutes, e.g. coffee powder can be blended with powdered cream or cream substitute. There can also be blended with the flavoring agent artificial sweeteners such as calcium cyclamate, sodium cyclamate, sodium saccharin or the like.
The flavoring agent is entrapped in the hydrophilic acrylate or methacrylate and upon placing the straw in an aqueous liquid such as water, milk or skim milk the hydrophilic polymer takes up the liquid and the water soluble flavoring agent gradually passes into the aqueous liquid giving a flavored drink.
As the hydrophilic acrylate or methacrylate polymer there can be employed homopolymer and copolymers of hydroxy lower alkyl acrylates and methacrylates or hydroxy lower alkoxy lower alkyl acrylates or methacrylates, e.g. 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, diethylene glycol monoacrylate, diethylene glycol monomethacrylate, 2- hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3- hydroxypropyl acrylate, 3-hydroxypropyl methacrylate and dipropylene glycol methacrylate. The preferred monomer is 2- hydroxyethyl methacrylate. The water insoluble hydrophilic polymers are swellable in water, usually to 35 to percent.
While homopolymers can be employed in the invention frequently it is preferred to employ a cross-linking agent. Consequently the small amount of diacrylate or dimethacrylate normally present in hydroxyalkyl acrylates and methacrylates need not be removed before forming the polymer.
The cross linking-agent is preferably present in an amount of 0.1 to 2.5 percent although as little as 0.05 percent or up to 20 percent of cross-linking agent can be used. The hydrophilic acrylates and methacrylates are nontoxic and naturally nontoxic cross-linking agents are preferred. Typical examples of cross-linking agents include ethylene glycol diacrylate, ethylene glycol dimethacrylate, l,2-butylene dimethacrylate, 1,3-butylene dimethacrylate, 1,4-butylene dimethacrylate, propylene glycol diacrylate, propylene glycol dimethacrylate, diethylene glycol dimethacrylate, dipropylene glycol dimethacrylate, diethylene glycol diacrylate, dipropylene glycol diacrylate, divinyl benzene, divinyl toluene, diallyl tartrate, allyl pyrivate, allyl malate, divinyl tartrate, triallyl melamine, N,N'-methylene bis acrylamide, glycerine trimethacrylate, diallyl maleate, divinyl ether, diallyl monoethylene glycol citrate, ethylene glycol vinyl allyl citrate, allyl vinyl maleate, diallyl itaconate, ethylene glycol diester of itaconic acid, divinyl sulfone, hexahydro-1,3,5-triacryl triazine, triallyl phosphite, diallyl ester of benzene phosphoric acid, polyester of maleic anhydride with triethylene glycol, polyallyl glucose, e.g. triallyl glucose, polyallyl sucrose, e.g. pentaallyl sucrose, sucrose diacrylate, glucose dimethacrylate, pentaerythritol tetraacrylate, sorbitol dimethacrylate, diallyl aconitate, divinyl citraconate, diallyl fumarate, citraconic acid, itaconic acid, fumaric acid, maleic acid, aconitic acid, mono 2-hydroxyethyl itaconate, mono 2-hydroxypropyl itaconate, mono Z-hydroxyethyl maleate, mono 2-hydroxypropyl fumarate, mono methyl itaconate, acrylic acid, methacrylic acid.
There can also be included minor amounts, e.g. l to 25 percent preferably not over 10 percent, of other monomers which are not cross-linking such as alkoxyethyl acrylates and methacrylates, e.g. 2-methoxyethyl acrylate, Z-methoxyethyl methacrylate and 2-ehoxyethyl methacrylate, insaturated amino compounds, e.g. p-aminostyrene, 2-amino-4-vinyltoluene, diethylaminoethylacrylate, diethylaminoethyl methacrylate, dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, t-butylaminoethyl methacrylate, piperidinoethyl acrylate, Z-vinyl pyridine, dimethylaminopropyl methacrylate, amides, e.g. acrylamide, methacrylamide, N-isopropyl acrylamide, N-isopropyl methacrylamide, diacetone acrylamide, diacetone methacrylamide, methylol acrylamide, methylol methacrylamide, N 2-hydroxyethyl) methacrylamide, etc.
The polymers are old per se and are found in the literature. The preferred polymers are Hydron S (Z-hydroxyethyl methacrylate homopolymer which is thermoplastic) and l-lydron (infrequently cross-linked copolymer of 2-hydroxyethyl methacrylate with less than 2 percent ethylene glycol dimethacrylate and thermosetting).
The mixture of hydrophilic acrylate or methacrylate polymer and flavoring agent can be prepared by any conventional technique. Thus for example a mixture of 10 parts of chocolate powder and 90 parts of powdered l-lydron S can be placed in an extruder and extruded in the form of a tube to make the drinking straw. Of course there can be used powdered coffee or tea or a mixture of 7 parts sugar and 3 parts chocolate in place of the chocolate powder.
Unless otherwise indicated all parts and percentages are by weight.
To reduce expense it is not necessary to make the entire straw of the hydrophilic acrylate or methacrylate polymer. Thus there can be included other polymers such as polyethylene, polypropylene, polyvinyl chloride or polyesters, e.g. polyethylene terephthalate.
For example there can be extruded a powdered mixture of 80 parts polyethylene, 20 parts Hydron S and parts tea to form a drinking straw.
The straws can also be formed by casting. This procedure is particularly convenient when employing a thermosetting resin such as Hydron.
Thus 2 parts of instant coffee powder can be intimately mixed with 100 parts of 2-hydroxyethyl methacrylate and 0.2 part of ethylene glycol and 0.15 part of isopropyl percarbonate (catalyst) and the mixture cast into a mold in the form of a tube and the mixture heated at 40 C. to form a drinking straw having the coffee entrapped therein.
For increased strength (and reduced cost) it is also possible to extrude or cast a tube of polyethylene, polypropylene, polyvinyl chloride or the like and then cast the Hydron polymer containing powdered chocolate, coffee or tea as either an internal or external coat or as both an internal and external coat thereon without the use of an adhesive. The Hydron in this case is applied in liquid form either as a prepolymer, monomer or monomerpolymer mixture containing the powdered flavoring agent and polymerization is completed to form the Hydron itself containing the entrapped flavoring agent.
The invention will be understood best in connection with the drawings wherein:
FIG. 1 is a plan view of a drinking straw according to the invention;
FIG. 2 is a broken sectional view of another form of the invention;
FIG. 3 is a sectional view along the line 33 of FIG. 2; and
FIG. 4 is a broken sectional view of another form of the invention.
Referring more specifically to FIG. 1 of the drawings there is shown a drinking straw 2 made of Hydron S containing entrapped coffee. The Hydron S and coffee were dry mixed and then extruded to form the straw. Alternatively the straw can be made by casting. The straw has pleats at 4 so that it can be bent in any desired direction. While the use of such pleats is preferred since the whirling action imparted to liquid sipped through the straw will aid the coffee to enter the liquid it is not essential to the invention that such a pleated straw be used. Thus the straw can be of conventional tubular design. The straw 2 is shown sitting in a glass 6 filled with water 8. As explained when the drinking straw is placed in water due to the hydrophilic nature of the Hydron S it will take up water and swell. At the same time the entrapped coffee is released and goes into the water with the result that when water is sipped through the straw it has a coffee flavor. Instead of making the straw 2 completely of Hydron S it can be made by extruding a mixture of Hydron S and another polymer such as an olefin polymer, e.g. polyethylene, polypropylene, or ethylene propylene copolymer for example.
FIG. 2 illustrates another form of drinking straw according to the invention. The drinking straw 10 is prepared by simultaneously extruding a relatively thick external tube 12 of polypropylene and a relatively thin internal tube 14 of Hydron S. Dispersed throughout the inner tube are particles 16 of chocolate and sugar as a result of dry blending the sugar and chocolate with particles of Hydron S prior to the extrusion.
In place of forming the tube 14 by extrusion it can also be formed by casting incompletely polymerized Hydron or Hydron S containing the chocolate and sugar between the tube of polypropylene and an inner mandrel and then completing the polymerization of the Hydron or Hydron S and removing the mandrel.
FIG. 4 shows a drinking straw 18 made of Hydron. The straw comprises a cylindrical inner tube 20 and a coaxial cylindrical outer tube 22. The annulus formed by tube 20 and outer tube 22 is joined together at the bottom edges of the tubes by surface or plate 24 which has a central opening corresponding to the bo e of inner tube 20. Instant tea powder 26 is supplied to the space between inner tube 20 and outer tube 22 and is retained therein due to the plate-like surface 24. To
prevent spillage of tea the upper space between tubes 20 and 22 can be closed off in any suitable fashion after the tea is added. Thus the outer tube can be heated in the upper portion sufficiently to soften it and then pinched to seal it as at 28 to the inner tube.
In the embodiment set forth in FIG. 4 the inner tube can be made of the hydrophilic polyacrylate or polymethacrylate and the outer tube made of polyethylene, polypropylene or alternatively the outer tube can be made of the hydrophilic polyacrylate or polymethacrylate and the inner tube made of polyethylene or polypropylene. In any of these methods of forming the drinking straw when suction is applied to the upper end of the straw water containing tea will rise through the straw.
The form of the invention in which the flavoring agent is intimately mixed with the hydrophilic polymer is preferred since the quickest and most uniform solution of the flavoring agent in the water, milk, skim milk or the like will occur.
There is no need of employing an adhesive in the invention and there is no danger of disintegration of the hydrophilic acrylate or methacrylate polymer in contrast to the situation when using an absorbent fibrous material such'as absorbent cellulose. Additionally the hydrophilic polymer and flavoring agent can be dry mixed according to the invention which is particularly advantageous in forming extruded drinking straws. Furthermore there is no need to rely upon the relatively slow absorption which occurs when using absorbent cellulose.
What is claimed is:
l. A tubular drinking straw having an exposed wall comprising a hydrophilic, water insoluble acrylate or methacrylate polymer selected from the group consisting of hydroxy lower alkyl acrylates, hydroxy lower alkyl methacrylates, hydroxy lower alkoxy lower alkyl acrylates and hydroxy lower alkoxy lower alkyl methacrylates, said polymers having dispersed therein a water soluble drink flavoring agent, whereby when the straw is placed in water the flavoring agent passes by way of the polymer to the water.
2. A drinking straw according to claim I wherein said polymer is a polymer of a compound selected from the group consisting of 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, diethylene glycol monoacrylate, diethylene glycol monomethacrylate, 2-hydroxypropyl acrylate, 2- hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 3- hydroxypropyl methacrylate, dipropylene glycol methacrylate.
3. A drinking straw according to claim I wherein said polymer is a polymer of a compound selected from the group consisting of hydroxy lower alkyl acrylates and hydroxy lower alkyl methacrylates.
4. A drinking straw according to claim I wherein the straw has a single wall said wall being uniform in composition from its interior to its exterior surface comprising an intimate mix ture of said flavoring agent and said polymerv 5. A drinking straw according to claim 4 wherein said polymer is a polymer of 2-hydroxyethyl methacrylate and said flavoring agent is in dry form and comprises a member of the group consisting of coffee, tea and chocolate.
6. A drinking straw according to claim I wherein the acrylate or methacrylate is the sole polymer in the wall.
7. A drinking straw according to claim I wherein the acrylate or methacrylate polymer in the wall is blended with a thermoplastic strengthening polymer.
8. A drinking straw according to claim 1 wherein the straw has a single wall said wall being composed of a thermoplastic strengthening polymer having on at least one of its exposed surfaces a coating of said hydrophilic acrylate or methacrylate polymer.
9. A drinking straw according to claim 8 wherein the strengthening polymer and the hydrophilic polymer are in direct contact with no adhesive in between.
10. A drinking straw according to claim 9 wherein said polymer is a polymer of 2-hydroxyethyl methacrylate and said flavoring agent is in dry form and comprises a member of the group consisting of coffee, tea and chocolate.
ll. A drink straw according to claim 1 wherein the straw has two concentric sidewalls providing a space therebetween, a bottom wall closing the space between the sidewalls and per- 5 manently united to said sidewalls and a water soluble drink flavoring agent in said space, at least one of said walls comprising said polymer.

Claims (10)

  1. 2. A drinking straw according to claim 1 wherein said polymer is a polymer of a compound selected from the group consisting of 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, diethylene glycol monoacrylate, diethylene glycol monomethacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 3-hydroxypropyl methacrylate, dipropylene glycol methacrylate.
  2. 3. A drinking Straw according to claim 1 wherein said polymer is a polymer of a compound selected from the group consisting of hydroxy lower alkyl acrylates and hydroxy lower alkyl methacrylates.
  3. 4. A drinking straw according to claim 1 wherein the straw has a single wall said wall being uniform in composition from its interior to its exterior surface comprising an intimate mixture of said flavoring agent and said polymer.
  4. 5. A drinking straw according to claim 4 wherein said polymer is a polymer of 2-hydroxyethyl methacrylate and said flavoring agent is in dry form and comprises a member of the group consisting of coffee, tea and chocolate.
  5. 6. A drinking straw according to claim 1 wherein the acrylate or methacrylate is the sole polymer in the wall.
  6. 7. A drinking straw according to claim 1 wherein the acrylate or methacrylate polymer in the wall is blended with a thermoplastic strengthening polymer.
  7. 8. A drinking straw according to claim 1 wherein the straw has a single wall said wall being composed of a thermoplastic strengthening polymer having on at least one of its exposed surfaces a coating of said hydrophilic acrylate or methacrylate polymer.
  8. 9. A drinking straw according to claim 8 wherein the strengthening polymer and the hydrophilic polymer are in direct contact with no adhesive in between.
  9. 10. A drinking straw according to claim 9 wherein said polymer is a polymer of 2-hydroxyethyl methacrylate and said flavoring agent is in dry form and comprises a member of the group consisting of coffee, tea and chocolate.
  10. 11. A drink straw according to claim 1 wherein the straw has two concentric sidewalls providing a space therebetween, a bottom wall closing the space between the sidewalls and permanently united to said sidewalls and a water soluble drink flavoring agent in said space, at least one of said walls comprising said polymer.
US814271A 1969-04-08 1969-04-08 Flavored drinking straw Expired - Lifetime US3615595A (en)

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US81427169A 1969-04-08 1969-04-08

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US3615595A true US3615595A (en) 1971-10-26

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US3957202A (en) * 1975-09-17 1976-05-18 Hornsby Jr James R Novelty drinking straw
EP0111188A1 (en) * 1982-12-10 1984-06-20 Deutsche Granini GmbH & Co. KG. Device for drinking refreshing beverages
US4717016A (en) * 1986-05-29 1988-01-05 Dalgleish James M Package for ingredients
US4981468A (en) * 1989-02-17 1991-01-01 Eli Lilly And Company Delivery device for orally administered therapeutic agents
US5094861A (en) * 1990-10-15 1992-03-10 Auguste Susanne D Flavored drink straw
US5736180A (en) * 1993-12-21 1998-04-07 Peiffer; Bernd Spice impregnated edible wrapping foil
WO1998015187A1 (en) * 1996-10-10 1998-04-16 Peter Baron Method and apparatus for producing a flavoured beverage
US5809868A (en) * 1996-10-10 1998-09-22 Jsd Partners Beverage infusion device
WO1999009871A1 (en) 1997-08-27 1999-03-04 Max David Schleider Drinking straw having a flavor agent coating
US5932262A (en) * 1997-05-27 1999-08-03 Little; Misty L. Method of flavoring a baby bottle nipple device and nipple device having flavor incorporated therein
US5958478A (en) * 1995-11-09 1999-09-28 Lehrer; Robert Filtration device for preparation of foods from food concentrates and liquids
US6109538A (en) * 1998-06-17 2000-08-29 Villani; Michael S. Flavoring delivery drinking straw
US6142384A (en) * 1999-01-28 2000-11-07 Shafik; Aasef M. Personal portable liquid filter device
WO2001015985A1 (en) * 1999-09-01 2001-03-08 Biogaia Biologics Ab Dispensing tube
US6274180B1 (en) 1999-05-17 2001-08-14 Jsd Partners Expandable beverage infusion device
GB2366178A (en) * 2000-09-02 2002-03-06 Dan Drake Flavouring device for a liquid
US6460777B2 (en) * 1998-11-10 2002-10-08 Ardele Y. Float Bendable insulated drinking straw for drinking hot and cold liquids
US20020190023A1 (en) * 1997-02-07 2002-12-19 Steven Landau Receptacle cap having aromatic properties
US20030168772A1 (en) * 2002-03-05 2003-09-11 Sevugan Palaniappan Method and apparatus for coating the interior surface of a straw
US20030203075A1 (en) * 2002-04-25 2003-10-30 Taylor Lee Richard Flavored straw inserts
US20030234297A1 (en) * 2002-06-22 2003-12-25 Bloom Walter L. Aspirating and volatilizing liquid dispenser
US20040013772A1 (en) * 2002-07-17 2004-01-22 Weiss Sanford B. Edible drinking straw fortified with nutritional supplements
US20040109932A1 (en) * 2002-12-10 2004-06-10 Chen You Lung Flavor coated drinking straw or other article and coating methods therefor
US20040123620A1 (en) * 2002-12-18 2004-07-01 Porter Michael A. Device for cooling or heating liquids in a bottle
US20040187692A1 (en) * 2003-03-31 2004-09-30 Hamiel Lee J. Hydrophilic substance dispensing device
US20050260304A1 (en) * 2004-05-21 2005-11-24 Schaffer Jake T Edible straw
US20060029696A1 (en) * 2004-08-05 2006-02-09 Wiiliam L. Rodman Consumable porous food product covered with a non-porous coating to enable a consumable liquid to be orally drawn in and absorbed
US20060065757A1 (en) * 2004-09-25 2006-03-30 Calabrese Daniel C Safety Straw TM
US20060169791A1 (en) * 2005-01-31 2006-08-03 Taylor Eve F Sip straw with consumable component
EP1704111A2 (en) * 2003-12-23 2006-09-27 E-L Management Corp. Functional dip tube for cosmetic dispensers
WO2006123978A1 (en) * 2005-05-20 2006-11-23 Tetra Laval Holdings & Finance Sa Process of producing scented drinking straw and the product produced from the process
WO2006125327A1 (en) * 2005-05-27 2006-11-30 Boris Ouriev Active ingredient depot
US20060286214A1 (en) * 2002-07-17 2006-12-21 Weiss Sanford B Edible drinking straw
US20080197141A1 (en) * 2007-02-20 2008-08-21 Felfoldi Edesseggyarto Kft. Drinking Straw
US20090041904A1 (en) * 2006-03-02 2009-02-12 Unistraw Patent Holdings Limited Drinking straw with integral filters
US20090053374A1 (en) * 2007-08-21 2009-02-26 Finn Clifford J Beverage Container
US20100159075A1 (en) * 1996-10-10 2010-06-24 Unistraw Patent Holdings Limited Drink flavouring straw
US20110143005A1 (en) * 2005-09-02 2011-06-16 Anilkumar Ganapati Gaonkar Methods for the Application of Ingredients to the Inside of a Straw
US20110200713A1 (en) * 2010-02-12 2011-08-18 Anthony Simone Perforated stirrer
WO2013030607A1 (en) 2011-09-01 2013-03-07 Silman Invest & Trade Ltd. Flavouring straw
US20130089637A1 (en) * 2010-06-14 2013-04-11 Nestec S.A. Feeding device
US20130218136A1 (en) * 2004-10-25 2013-08-22 Coloplast A/S Male Telescope Catheter
WO2013156827A1 (en) * 2012-04-18 2013-10-24 Alon Tal Enhanced drinking straws
WO2014076513A1 (en) 2012-11-16 2014-05-22 Silman Invest & Trade Ltd. Drinking straw
US20150060453A1 (en) * 2013-09-03 2015-03-05 Alkipops Inc. Apparatus with vessel and mount
US8980348B2 (en) 2002-05-31 2015-03-17 Unistraw Holdings Pte. Ltd. Drink flavouring straw
US20160220051A1 (en) * 2015-01-30 2016-08-04 Claire Ellen CAHOON Drinking Straw with Flavored Insert
DE102017127425A1 (en) * 2017-11-21 2019-05-23 Christine Kötter Drinking straw for simplified production of a mixed drink
USD866235S1 (en) * 2018-05-23 2019-11-12 The Final Co. Llc Foldable reusable drinking straw
WO2020032912A1 (en) * 2018-08-04 2020-02-13 Angel Tonchev Device and method for infusion, drinking and inhalation of botanicals
US10660464B2 (en) 2017-10-30 2020-05-26 The Final Co. Llc Reusable foldable drinking straw in storage case
USD887762S1 (en) * 2018-09-04 2020-06-23 Chunhui Chen Telescopic straw
US10888186B2 (en) 2018-06-04 2021-01-12 The Final Co. Llc Foldable reusable chopsticks and storage case
US11272799B2 (en) * 2020-05-29 2022-03-15 Unistraw Corp. Drinking straw with internal coating
US11377285B1 (en) * 2017-10-17 2022-07-05 Adam Miller Bottling device and method
RU2786041C2 (en) * 2018-08-04 2022-12-16 Ангел ТОНЧЕВ Device and method for brewing, drinking and inhalation of vegetable raw materials

Cited By (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957202A (en) * 1975-09-17 1976-05-18 Hornsby Jr James R Novelty drinking straw
EP0111188A1 (en) * 1982-12-10 1984-06-20 Deutsche Granini GmbH & Co. KG. Device for drinking refreshing beverages
US4717016A (en) * 1986-05-29 1988-01-05 Dalgleish James M Package for ingredients
US4981468A (en) * 1989-02-17 1991-01-01 Eli Lilly And Company Delivery device for orally administered therapeutic agents
US5094861A (en) * 1990-10-15 1992-03-10 Auguste Susanne D Flavored drink straw
US5736180A (en) * 1993-12-21 1998-04-07 Peiffer; Bernd Spice impregnated edible wrapping foil
US5958478A (en) * 1995-11-09 1999-09-28 Lehrer; Robert Filtration device for preparation of foods from food concentrates and liquids
US5809868A (en) * 1996-10-10 1998-09-22 Jsd Partners Beverage infusion device
US8334003B2 (en) 1996-10-10 2012-12-18 Unistraw Patent Holdings Limited Drink flavouring straw
US6482451B1 (en) 1996-10-10 2002-11-19 Peter Baron Apparatus for producing a flavored beverage
US20100159075A1 (en) * 1996-10-10 2010-06-24 Unistraw Patent Holdings Limited Drink flavouring straw
US5996473A (en) * 1996-10-10 1999-12-07 Jsd Partners Beverage infusion device
WO1998015187A1 (en) * 1996-10-10 1998-04-16 Peter Baron Method and apparatus for producing a flavoured beverage
US7005152B2 (en) * 1997-02-07 2006-02-28 Steven Landau Receptacle cap having aromatic properties
US20020190023A1 (en) * 1997-02-07 2002-12-19 Steven Landau Receptacle cap having aromatic properties
US5932262A (en) * 1997-05-27 1999-08-03 Little; Misty L. Method of flavoring a baby bottle nipple device and nipple device having flavor incorporated therein
WO1999009871A1 (en) 1997-08-27 1999-03-04 Max David Schleider Drinking straw having a flavor agent coating
US6109538A (en) * 1998-06-17 2000-08-29 Villani; Michael S. Flavoring delivery drinking straw
US6460777B2 (en) * 1998-11-10 2002-10-08 Ardele Y. Float Bendable insulated drinking straw for drinking hot and cold liquids
US6142384A (en) * 1999-01-28 2000-11-07 Shafik; Aasef M. Personal portable liquid filter device
US6692781B2 (en) 1999-05-17 2004-02-17 David Ryan Expandable beverage infusion device
US6274180B1 (en) 1999-05-17 2001-08-14 Jsd Partners Expandable beverage infusion device
WO2001015985A1 (en) * 1999-09-01 2001-03-08 Biogaia Biologics Ab Dispensing tube
CN100408439C (en) * 1999-09-01 2008-08-06 拜奥加亚公司 Device for dispensing selected material to liquid and its mfg. method
US6283294B1 (en) * 1999-09-01 2001-09-04 Biogaia Biologics Ab Enclosed living cell dispensing tube
AU773748B2 (en) * 1999-09-01 2004-06-03 Biogaia Ab Dispensing tube
GB2366178A (en) * 2000-09-02 2002-03-06 Dan Drake Flavouring device for a liquid
EP1287771A1 (en) * 2001-09-04 2003-03-05 Ardele Y. Float Bendable insulated drinking straw for drinking hot and cold liquids
US20030168772A1 (en) * 2002-03-05 2003-09-11 Sevugan Palaniappan Method and apparatus for coating the interior surface of a straw
US7014808B2 (en) 2002-03-05 2006-03-21 The Coca-Cola Company Method and apparatus for coating the interior surface of a straw
WO2003076166A1 (en) 2002-03-05 2003-09-18 The Coca-Cola Company Method and apparatus for coating the interior surface of a straw
US20030203075A1 (en) * 2002-04-25 2003-10-30 Taylor Lee Richard Flavored straw inserts
US8980348B2 (en) 2002-05-31 2015-03-17 Unistraw Holdings Pte. Ltd. Drink flavouring straw
US20030234297A1 (en) * 2002-06-22 2003-12-25 Bloom Walter L. Aspirating and volatilizing liquid dispenser
US20040013772A1 (en) * 2002-07-17 2004-01-22 Weiss Sanford B. Edible drinking straw fortified with nutritional supplements
US20060286214A1 (en) * 2002-07-17 2006-12-21 Weiss Sanford B Edible drinking straw
US20040109932A1 (en) * 2002-12-10 2004-06-10 Chen You Lung Flavor coated drinking straw or other article and coating methods therefor
US20060010903A1 (en) * 2002-12-18 2006-01-19 Porter Michael A Device for cooling or heating liquids in a bottle
US7069739B2 (en) 2002-12-18 2006-07-04 Porter Michael A Device for cooling or heating liquids in a bottle
US20040123620A1 (en) * 2002-12-18 2004-07-01 Porter Michael A. Device for cooling or heating liquids in a bottle
US6966252B2 (en) * 2003-03-31 2005-11-22 Mcneil-Ppc, Inc. Hydrophilic substance dispensing device
US20050241490A1 (en) * 2003-03-31 2005-11-03 Hamiel Lee J Hydrophilic substance dispensing device
US20040187692A1 (en) * 2003-03-31 2004-09-30 Hamiel Lee J. Hydrophilic substance dispensing device
EP1704111A2 (en) * 2003-12-23 2006-09-27 E-L Management Corp. Functional dip tube for cosmetic dispensers
EP1704111A4 (en) * 2003-12-23 2008-05-21 E L Management Corp Functional dip tube for cosmetic dispensers
US20050260304A1 (en) * 2004-05-21 2005-11-24 Schaffer Jake T Edible straw
US20060029696A1 (en) * 2004-08-05 2006-02-09 Wiiliam L. Rodman Consumable porous food product covered with a non-porous coating to enable a consumable liquid to be orally drawn in and absorbed
US20060065757A1 (en) * 2004-09-25 2006-03-30 Calabrese Daniel C Safety Straw TM
US9682212B2 (en) * 2004-10-25 2017-06-20 Coloplast A/S Male telescope catheter
US20130218136A1 (en) * 2004-10-25 2013-08-22 Coloplast A/S Male Telescope Catheter
US20060169791A1 (en) * 2005-01-31 2006-08-03 Taylor Eve F Sip straw with consumable component
WO2006123978A1 (en) * 2005-05-20 2006-11-23 Tetra Laval Holdings & Finance Sa Process of producing scented drinking straw and the product produced from the process
WO2006125327A1 (en) * 2005-05-27 2006-11-30 Boris Ouriev Active ingredient depot
US8409643B2 (en) 2005-09-02 2013-04-02 Kraft Foods Group Brands Llc Methods for the application of ingredients to the inside of a straw
US20110143005A1 (en) * 2005-09-02 2011-06-16 Anilkumar Ganapati Gaonkar Methods for the Application of Ingredients to the Inside of a Straw
US9005684B2 (en) 2006-03-02 2015-04-14 Unistraw Patent Holdings Limited Drinking straw with integral filters
US20090041904A1 (en) * 2006-03-02 2009-02-12 Unistraw Patent Holdings Limited Drinking straw with integral filters
US20080197141A1 (en) * 2007-02-20 2008-08-21 Felfoldi Edesseggyarto Kft. Drinking Straw
US20090053374A1 (en) * 2007-08-21 2009-02-26 Finn Clifford J Beverage Container
US20110200713A1 (en) * 2010-02-12 2011-08-18 Anthony Simone Perforated stirrer
US20130089637A1 (en) * 2010-06-14 2013-04-11 Nestec S.A. Feeding device
WO2013030607A1 (en) 2011-09-01 2013-03-07 Silman Invest & Trade Ltd. Flavouring straw
WO2013156827A1 (en) * 2012-04-18 2013-10-24 Alon Tal Enhanced drinking straws
WO2014076514A1 (en) 2012-11-16 2014-05-22 Silman Invest & Trade Ltd. Drinking straw and method and device for manufacturing a drinking straw
WO2014076513A1 (en) 2012-11-16 2014-05-22 Silman Invest & Trade Ltd. Drinking straw
US20150060453A1 (en) * 2013-09-03 2015-03-05 Alkipops Inc. Apparatus with vessel and mount
US20160220051A1 (en) * 2015-01-30 2016-08-04 Claire Ellen CAHOON Drinking Straw with Flavored Insert
US11377285B1 (en) * 2017-10-17 2022-07-05 Adam Miller Bottling device and method
US10660464B2 (en) 2017-10-30 2020-05-26 The Final Co. Llc Reusable foldable drinking straw in storage case
DE102017127425A1 (en) * 2017-11-21 2019-05-23 Christine Kötter Drinking straw for simplified production of a mixed drink
DE102017127425B4 (en) 2017-11-21 2022-03-17 Christine Kötter Drinking straw for the simplified production of a mixed drink
US10736449B2 (en) 2018-04-17 2020-08-11 The Final Co. Llc Reusable foldable drinking straw in storage case
USD866235S1 (en) * 2018-05-23 2019-11-12 The Final Co. Llc Foldable reusable drinking straw
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US10888186B2 (en) 2018-06-04 2021-01-12 The Final Co. Llc Foldable reusable chopsticks and storage case
CN112543607A (en) * 2018-08-04 2021-03-23 托切夫·安琪儿 Device and method for infusion, drinking and inhalation of botanical preparations
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