[go: up one dir, main page]

CN1508185A - Antimicrobial injection-molded and method for producing same - Google Patents

Antimicrobial injection-molded and method for producing same Download PDF

Info

Publication number
CN1508185A
CN1508185A CNA2003101181010A CN200310118101A CN1508185A CN 1508185 A CN1508185 A CN 1508185A CN A2003101181010 A CNA2003101181010 A CN A2003101181010A CN 200310118101 A CN200310118101 A CN 200310118101A CN 1508185 A CN1508185 A CN 1508185A
Authority
CN
China
Prior art keywords
prescription
thermoplastic resin
resin
antimicrobial additive
molded article
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2003101181010A
Other languages
Chinese (zh)
Inventor
乔治・索里克
乔治·索里克
布雷肯里奇
特里·布雷肯里奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shepherd Products Inc
Original Assignee
Shepherd Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shepherd Products Inc filed Critical Shepherd Products Inc
Publication of CN1508185A publication Critical patent/CN1508185A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to injection-molded plastic products having an antimicrobial additive incorporated into the plastic resin from which the injection-molded plastic products are formed. A preferred antimicrobial additive comprises 5-chloro-2-(2,4-dichlorophenoxy) phenol. The injection-molded plastic products are formed by selecting an antimicrobial additive and an antimicrobial additive carrier system compatible with a plastic resin, combining the carrier system with the selected antimicrobial additive, incorporating the antimicrobial additive/carrier system into the plastic resin, depositing the plastic resin composition, including glass fibers or other high modulus fibers if desired, within the feed system of an injection-molding process and injecting the resin composition into a desired product-forming mold to form an injection-molded antimicrobial plastic product.

Description

Antibiotic injection-molded parts and production method thereof
Technical field
Generally speaking, the present invention relates to antibiotic injection-molded plastic products, and more particularly, relate to and have the antimicrobial compounds that is dispersed in the Plastic Resin that forms product or the injection-molded plastic products of pharmaceutical chemicals.
Background technology
Injection-molded plastic products is widely used in the various consumer's goods, in order to the structure of the firm plastic with ideal surfaced outward appearance to be provided.For example, injection-molded plastic products comprises furniture and the functional furniture components that is used for household, hotel, hospital, restaurant, school and other shelter or commercial location.Before can taking any self-protection measure, only be to have touched same vectorial two people just some diseases to be infected to another person by the carrier.Especially medical personnel, owing to touch object, for example furniture is the high risk population who is easy to infect disease, because may have various viruses, fungi and pathogenic bacterium on the object of described touch.Food food and drink practitioner places the dangerous condition of various viruses, fungi and pathogenic bacterium with himself and human consumer.In punishment mechanism, the office worker and the person of accommodating are owing to the situation of all same possible cross infections is in hazardous environment.In educational institution, for example school and day care facility, many facilities that it provided may be touched by many children, and propagate microorganism thus.
In example more specifically, injected-formative plastic is used to form the plastic components that is used for the seat, be the chair back and chair panel, seat, stadium, office chair, chair base, armrests and apparatus for adjusting position, and chair castor and other commercial and industrial articles for use, they all are used for one or more aforementioned environment.Yet the surface of these injection-molded plastic products is exposed in bacterium, fungi and the microorganism that is present in the aforementioned environment always.For example, injected-formative plastic chair base, chair castor and other plastic components are used for hospital and other environment, and these environment are relevant with breeding with pathogenic growth especially.In these environment, or the existence of moisture and moisture all is of value to the growth of pathogenic agent in any environment.These bacteriums, fungi and other pathogenic agent can be in surface growth and the breedings based on the product of injected-formative plastic, and can produce tangible microbial contamination as time goes by.A kind of method of microorganism growth of antagonism injection-molded product surface of suggestion is an application of disinfectant from the teeth outwards, for example smears the surface by spraying or sassafras and applies.Unfortunately, the just temporary transient removal of microorganisms of application of disinfectant with the surface, but as previously mentioned, relevant environment is the continuous source of further polluting.Repeat application of disinfectant cost height, time-consuming, lasting and be the existence and the growth of temporary transient combating microorganisms.In addition,, the resistates of sterilizing agent or biocide is entered in the environment, may cause negative impact to environment, particularly in hospital environment by surface applied sterilizing agent or other biocide at product.Therefore, need such injection-molded plastic products, it has the antiseptic-germicide of sneaking into wherein, and it shows antibacterial properties, does not have toxic action, and in the usage period of this injection-molded plastic products durable.Yet, by other material is sneaked in the injection-molded plastic products, can expect that the physical and mechanical property of this injection-molded product reduces, this is the mechanical composition because of a great deal of, for example glass fibre or fluoropolymer resin are substituted by other material.Therefore, further demand is exactly to have the antimicrobial compounds of sneaking in the Plastic Resin or the injection-molded plastic products of pharmaceutical chemicals, and it has physics and the mechanical characteristics that is similar to the injection-molded plastic products of not sneaking into antimicrobial compounds or pharmaceutical chemicals in the product.
Summary of the invention
The present invention relates to have antimicrobial characteristic, suppress the injection-molded plastic products of bacterium, fungi, microorganism and other pathogenic growth, and the production method of this injection-molded plastic products.This antiseptic-germicide, compound or pharmaceutical chemicals are sneaked in this injection-molded plastic products at production period.And, the present invention relates to have the antimicrobial compounds of sneaking in the product or the injection-molded plastic products of pharmaceutical chemicals, it has to be similar to does not have antimicrobial compounds or pharmaceutical chemicals to sneak into the physical and mechanical property of the injection-molded plastic products in the product.Antimicrobial additive is sneaked in the Plastic Resin that forms this injection-molded plastic products, thereby antiseptic-germicide is sneaked in this injection-molded plastic products.Preferred antimicrobial additive comprises 5-chloro-2-(2,4 dichloro benzene oxygen base) phenol.Product by the injected-formative plastic resin formation comprises ad lib, the parts that are used for the seat, be the chair back and chair panel, seat, stadium, office chair, chair base, armrests and apparatus for adjusting position, and chair castor and other commercial and industrial articles for use etc.The following formation of injection molding plastic prod: select antimicrobial additive and the antimicrobial additive carrier system compatible with Plastic Resin, this carrier system is combined with selected antimicrobial additive, and antimicrobial additive/carrier system sneaked in the Plastic Resin, the Plastic Resin composition that will comprise glass fibre or other high modulus fibre if desired is deposited in the feed system of injection moulding method, and this resin combination injected the mould that forms desired product, to form injection molding antibiotic plastic product.
Specific embodiments
In basic form of the present invention, provide the injection molded article of the thermoplastic material that contains the significant quantity antimicrobial additive.The moulding prescription that will comprise thermoplastic resin and antimicrobial additive prescription mixes, and injection molding, forms this product.This thermoplastic resin is preferably selected from polyamide thermoplastic resin (for example nylon 6, nylon 6,6), polythene thermoplastic resin, polyurethane thermoplastic resin, polypropylene thermoplastic resin, polyvinyl chloride thermoplastic resin and aforesaid mixture.Nylon resin or polymeric amide are preferred, and be It is generally accepted have good mechanical strength, wear resistance and flexible one analog thermoplastic resin.Commercially important nylon prepares by conventional melt polymerization process, and comprises most preferred resin, nylon 6, and it prepares by caprolactam polymerization.This thermoplastic resin can be by comprising processing aid, tinting material or mechanical modifying agent, for example glass fibre or well known to a person skilled in the art other high modulus fibre and be improved.
This antimicrobial formulation comprises antimicrobial additive, and preferably also comprises vector resin.This antimicrobial additive is nontoxic, and does not contain heavy metal, and it is chlorinated phenol preferably, and for example 5-chloro-2-(2,4 dichloro benzene oxygen base) phenol is also referred to as triclosan.Also can adopt and have known antibiotic, kill livestock thing or biological other compound that suppresses (biostatic) trend.Preferably, antimicrobial additive closes with suitable carriers is resin premixed, and described vector resin for example is a polyester, and is more preferably polyethylene terephthalate (PET).Preferred antimicrobial additive is IRGAGUARD B1325 (the 25wt.%5-chloro-2-in the pet vector resin (2,4 dichloro benzene oxygen base) phenol) can be purchased by the Ciba Specialty Chemicals Corporation of USA New York Tarrytown.This antimicrobial additive is preferably about 0.1wt.% of total product composition to about 1.25wt.%.
The present invention relates more specifically to antimicrobial additive and sneaks into wherein injection molding nylon product, and described antimicrobial additive is given antimicrobial characteristic to product.Specifically, this product comprises functional furniture components, and more specifically saying so is used for the parts at seat, i.e. the chair back and chair panel, seat, stadium, office chair, chair base, armrests and apparatus for adjusting position, and chair castor and other are used for the commercial and industrial articles for use of commercial furniture.Unexpectedly be, the present inventor has been found that when comparing with the analogous products that do not contain antimicrobial additive the antimicrobial additive that adds 0.1wt.% to 1.25wt.% according to the present invention does not reduce physics, machinery and the appearance character of products obtained therefrom basically.The antimicrobial additive of sneaking into appropriate amount in nylon resin is important.Because the antimicrobial additive that uses has been replaced a part of nylon resin in the injection molding prescription, so obviously use antimicrobial additive will cause the pro rata reduction of physical properties of finished product.Surprisingly, situation is not such.The antimicrobial additive of sneaking into injection molding nylon product shows the physical properties that is similar to same product surprisingly, although replaced nylon resin by antimicrobial additive.
Following embodiment is in order to further specify the present invention.
1.01 joint Embodiment 1
Use conventional injection moulding method that chair base of the present invention is carried out injection molding.This injection molding prescription is as follows: the not carbon black-filled impact modification nylon 6 of 39wt.%, its mean specific gravity is 1.13 (ASTM D792), average notch shock grade is 1.5ft-lb/in (ASTMD256), average tensile yield strength is 10500psi (ASTM D638) and average modulus in flexure is 400000psi (ASTM D790), for example can be purchased by the Matrix Group of the Evansville of U.S. Indiana State; The glass-filled nylon 6 of 57.5wt.%, average content of glass fiber is 43%, mean specific gravity is 1.49 (ASTM D792), average notch shock grade is 2.0ft-lb/in (ASTM D256), average tensile yield strength is that 243500psi (ASTM D638) and average modulus in flexure (tangent) are 1500000psi (ASTM D790), can be that ProductName is purchased with FP62E43 by MatrixGroup for example; The carbonblack master batch of 2wt.% (the 50wt.% carbon black in acrylic resin, its median size are 60 millimicrons), for example the Tech Master that can be purchased by the L.C.Plastics Inc of Montreal, CAN; IRGAGUARD with 1.5wt.% B1325.This prescription is sent in the injection forming equipment, and under the maximum injection pressure of about 490 and 60-95%, injected die cavity.
From mould, take out the product and the cooling of gained.
Two samples to the injection molding chair base carry out bacterial growth inhibition test.Two samples all demonstrate ideal to the growth of bacterium and suppress effect.Also measure the physical properties of injection molding chair base by two samples being carried out statical load and drop shutter test, require to test according to AmericanNational Standards Institute/Business and Institutional FurnitureManufacturer ' s Association (ANSI/BIFMA), and these tests the results are shown in Table 1.
Table 1
Sample Statical load (ANSI/BIFMA X5.1-2002-basic test-static state) Drop shutter test (ANSI/BIFMA X5.1-2002-fall test-dynamically)
1 >2500lb >7in
2 >2500lb >7in
Embodiment 2
Except not using antimicrobial additive, adopt same moulding prescription, the method and apparatus preparation contrast chair base of embodiment 1.The injection molding prescription is as follows: the not carbon black-filled impact modification nylon 6 of 40wt.%; The glass-filled nylon 6 of 58wt.%, average content of glass fiber are 43% and the carbonblack master batch of 2wt.%.
Get two contrast chair base samples, and as carrying out the mensuration of physical properties as described in the embodiment 1.The results are shown in Table 2.
Table 2
Sample Statical load (ANSI/BIFMA X5.1-2002-basic test-static state) Drop shutter test (ANSI/BIFMA X5.1-2002-fall test-dynamically)
1 >2500lb >7in
2 >2500lb >7in
Surprisingly, antimicrobial additive replaces the physical properties that nylon resin does not reduce the injection molding nylon product.
Embodiment 3
The Coinjection molding apparatus production injection molding castor of use standard.Castor of the present invention, be called sample No. 1, make by following injection molding prescription: the not carbon black-filled impact modification nylon 6 of 98.5wt.%, its mean specific gravity is 1.13 (ASTM D792), average notch shock grade is 1.5ft-lb/in (ASTM D256), average tensile yield strength is 10500psi (ASTMD638) and average modulus in flexure is 400000psi (ASTM D790), for example can be purchased by the Matrix Group of the Evansville of Indiana, USA; IRGAGUARD with 1.5wt.% B1325.Prescription is carried out injection molding under about 516 and 80% maximum injection pressure.Then castor is taken out from mould and cool off.In prescription, do not contain (100% not carbon black-filled impact modification nylon 6) the antimicrobial additive, make the preparation comparative sample that uses the same method, No. 2 samples.
Physical properties to two samples is measured, and the results are shown in Table 3.By 5 " fall on the castor weight of 30lbs of height carries out the shock resistance test, and note whether taking place mechanical failure and take place.
Table 3
The sample sequence number Durability test ANSI/BIFMA in April, 2002 draft Impact test (150in-lb.)
1 (the present invention) Hard>100000 cycles of wheel Hard wheel passes through
2 (contrasts) Hard>100000 cycles of wheel Hard wheel passes through
Find surprisingly again, in the injection molding prescription, add antiseptic-germicide the physical properties of products obtained therefrom is descended.
Although the present invention has obtained detailed description for illustrational purpose, but should be appreciated that, such detailed description only is for purpose of explanation, under the prerequisite that does not deviate from the spirit and scope of the invention, those skilled in the art can make various changes to it, and scope of the present invention is defined by the following claims.

Claims (17)

1. injected-formative plastic goods, it has the susceptibility of reduction to the microorganism growth on it, and described injection molded article is made by the moulding prescription, and described prescription comprises:
Be selected from the thermoplastic resin of polyamide thermoplastic resin, polythene thermoplastic resin, polyurethane thermoplastic resin, polypropylene thermoplastic resin, polyvinyl chloride thermoplastic resin and aforesaid mixture, and antimicrobial additive.
2. the injection molded article of claim 1, wherein thermoplastic resin comprises polyamide thermoplastic resin.
3. the injection molded article of claim 2, wherein polyamide thermoplastic resin comprises nylon 6.
4. the injection molded article of claim 1, wherein antimicrobial additive comprises 5-chloro-2-(2,4 dichloro benzene oxygen base) phenol.
5. the injection molded article of claim 4, wherein antimicrobial additive is that about 0.1wt.% of this goods gross weight is to about 1.25wt.%.
6. the injection molded article of claim 1, wherein this prescription also comprises high modulus fibre.
7. the injection molded article of claim 1, wherein this prescription also comprises carbon black.
8. the injection molded article of claim 1, wherein these goods comprise chair base.
9. the injection molded article of claim 1, wherein these goods comprise castor.
10. the injection molded article of claim 1, wherein said thermoplastic resin is a nylon 6, and described moulding prescription also comprises high modulus fibre; Described antimicrobial additive comprises 5-chloro-2-(2,4 dichloro benzene oxygen base) phenol; And wherein said antimicrobial additive is about 0.1wt.% about 1.25wt.% extremely of moulding prescription gross weight.
11. a formation has the method for the goods of antibacterial properties, described method comprises:
A kind of moulding prescription is provided, it comprises: the thermoplastic resin that (i) is selected from nylon resin, polyvinylidene fluoride polymer resin, polyvinyl resin and aforesaid mixture, (ii) a kind of antimicrobial additive prescription, it comprises the antimicrobial additive that is dispersed in the vector resin, described vector resin is compatible with described thermoplastic resin, and described antimicrobial additive comprises 5-chloro-2-(2,4 dichloro benzene oxygen base) phenol;
With the heating of described moulding prescription, obtain the plasticizing resin prescription; With
Should plastify prescription and inject mould, form described goods.
12. the method for claim 11, wherein said thermoplastic resin are nylon 6.
13. the method for claim 11, wherein said vector resin comprises polyethylene terephthalate.
14. the method for claim 11, wherein said antimicrobial additive prescription comprise 5-chloro-2-(the 2,4 dichloro benzene oxygen base) phenol of about 25wt.% and about 75% polyethylene terephthalate.
15. about 0.5wt.% that the method for claim 11, wherein said antimicrobial formulation are moulding fills a prescription is to about 5wt.%.
16. the method for claim 11, wherein said moulding prescription also comprises high modulus fibre.
17. the method for claim 11, wherein said thermoplastic resin is a nylon 6, described moulding prescription also comprises high modulus fibre, and described antimicrobial formulation comprises the 5-chloro-2-(2 of about 25wt.%, the 4-dichlorophenoxy) polyethylene terephthalate of phenol and about 75wt.%, wherein said antimicrobial formulation are about 0.5wt.% about 5wt.% extremely of moulding prescription.
CNA2003101181010A 2002-10-08 2003-10-08 Antimicrobial injection-molded and method for producing same Pending CN1508185A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26644702A 2002-10-08 2002-10-08
US10/266,447 2002-10-08

Publications (1)

Publication Number Publication Date
CN1508185A true CN1508185A (en) 2004-06-30

Family

ID=32392343

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2003101181010A Pending CN1508185A (en) 2002-10-08 2003-10-08 Antimicrobial injection-molded and method for producing same

Country Status (3)

Country Link
CN (1) CN1508185A (en)
CA (1) CA2444711A1 (en)
MX (1) MXPA03009162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103382273A (en) * 2012-05-03 2013-11-06 辽宁辽杰科技有限公司 Far-infrared antibacterial thermoplastic composite sheet material and its preparation method and use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201217159D0 (en) * 2012-09-26 2012-11-07 Titan Furniture Uk Ltd Furniture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103382273A (en) * 2012-05-03 2013-11-06 辽宁辽杰科技有限公司 Far-infrared antibacterial thermoplastic composite sheet material and its preparation method and use

Also Published As

Publication number Publication date
CA2444711A1 (en) 2004-04-08
MXPA03009162A (en) 2004-09-10

Similar Documents

Publication Publication Date Title
CN102558651A (en) Antibacterial flavoring master batch
CN101089038A (en) Antibacterial polypropylene material and its prepn process
CN103059541B (en) antibacterial polycarbonate plastic
CN1147542C (en) Nano antiseptic plastic
DE19852192A1 (en) Aromatic copolyesters containing active ingredient
CN103059502B (en) Antibacterial POM plastic
Iyigundogdu et al. Thermoplastic elastomers containing antimicrobial and antiviral additives for mobility applications
Zander et al. Microbial susceptibility of various polymers and evaluation of thermoplastic elastomers with antimicrobial additives
CN1508185A (en) Antimicrobial injection-molded and method for producing same
CN101486818A (en) Thermoplastic elastomer materials
US20220046912A1 (en) Biocidal polyamide-compositions, methods for preparing the same and uses thereof
CN1242390A (en) PE raw material with photo degradable and biodegradable properties
CN112739763B (en) Antibacterial plastic, manufacturing method thereof and antibacterial plastic article manufactured by same
KR100873645B1 (en) Shopping cart parts with antibacterial and sterilizing function and shopping carts equipped with the same
US6669903B2 (en) Bactericidal or bacteriostatic method
CN109401022A (en) Anti-bacterial LDPE plastic and preparation method thereof
KR20230152284A (en) Poly(lactic acid) antimicrobial composition
CN107805375A (en) Medical lactic acid composite material and the disposable syringe of preparation
CN103937110A (en) Glass fiber reinforced polypropylene plastic and preparation method thereof
US12383699B2 (en) Catheter attachment made of plastic that contains molecularly dispersed polychlorinated phenoxyphenol (PCPP)
CN104877182A (en) Method for preparing medical plastic
US20180098543A1 (en) Antimicrobial polymer systems using multifunctional organometallic additives for polyurethane hosts
CN114702780A (en) Antibacterial ABS (acrylonitrile-butadiene-styrene) particles and preparation method thereof
JP2002529587A (en) Active ingredient-containing polyether block amide
EP1336463A1 (en) Method for producing a multi-component plastic article and multi-component plastic article

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication