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GB2276120A - Fluted plastic material. - Google Patents

Fluted plastic material. Download PDF

Info

Publication number
GB2276120A
GB2276120A GB9305742A GB9305742A GB2276120A GB 2276120 A GB2276120 A GB 2276120A GB 9305742 A GB9305742 A GB 9305742A GB 9305742 A GB9305742 A GB 9305742A GB 2276120 A GB2276120 A GB 2276120A
Authority
GB
United Kingdom
Prior art keywords
sheet material
foam
flutes
fluted
fluted sheet
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.)
Withdrawn
Application number
GB9305742A
Other versions
GB9305742D0 (en
Inventor
Clive Peter Haines
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.)
CORRUPLAST Ltd
Original Assignee
CORRUPLAST Ltd
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 CORRUPLAST Ltd filed Critical CORRUPLAST Ltd
Priority to GB9305742A priority Critical patent/GB2276120A/en
Publication of GB9305742D0 publication Critical patent/GB9305742D0/en
Publication of GB2276120A publication Critical patent/GB2276120A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/18—Filling preformed cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/62—Boxes, cartons, cases

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)
  • Wrappers (AREA)

Abstract

There is provided a fluted sheet material 1, comprising means 3 such as foam to obturate the flutes 2' against entry of foreign bodies. The sheet material 1 can be used in transit boxes and as pallet pads or slip sheets, particularly in fish boxes or for transporting bottles, without risk to hygiene from matter trapped inside the flutes harbouring germs.

Description

PLASTIC MATERIAL The invention relates to plastic material, particularly fluted plastic material in sheet form.
Such material comprises two substantially parallel major surfaces or sheets secured together integrally by transverse walls or partitions, which, with the major surfaces or sheets provide parallel flutes or channels which are open at each end. This material, which is marketed under the Trade Mark 'CORREX', is strong, yet light and is a proven product for inter alia packaging purposes.
For same purposes, however, the open nature of the channel or flutes can be a disadvantage, as foreign bodies which can harbour germs can enter the flutes and render packaging made from the material unhygienic.
It is accordingly an object of the invention to seek to mitigate this disadvantage.
According to the invention there is provided a fluted sheet material, comprising means to obturate the flutes against entry of foreign bodies.
The obturating means may comprise a foam material filling each flute.
The foam may be integrally formed during forming of the sheet material. The foam may be formed by a foaming process when the sheet is formed by extrusion.
The foam may be formed in situ in the flutes as the sheet material is formed, whereby at the end of an extrusion process, the extruded sheet has integrally formed foam filling the flutes.
A sheet material embodying the invention is hereinafter described, by way of example, with reference to the accompanying drawing, which shows a schematic perspective view of a sheet material according to the invention.
Referring to the drawing, the sheet material 1 is an extruded fluted plastic sheet material the flutes 2 of which are obturated against ingress of foreign bodies by being filled with a plastic foam 3. The foam 3 is either formed in situ, when the sheet material 1 is made, or is formed afterwards, in the otherwise open flutes 2. In either embodiment, the foam 3 provides strength, yet also provides a certain yield or "give" in a direction transverse to the plane of the major surfaces 4, 5 of the sheet 1 so that when used for packaging for say empty bottles, the "give" ensures that the necks of the bottles are not broken when there are externally imposed shocks. The sheet material can also be used in transit boxes and as pallet pads or slip sheets, particularly in fish boxes or, again, for transporting bottles.

Claims (7)

1. A fluted sheet material, comprising means to obturate the flutes against entry of foreign bodies.
2. A fluted sheet material according to Claim 1, wherein the means comprises a foam.
3. A fluted sheet material according to Claim 2, the foam filling substantially each flute.
4. A fluted sheet material according to any preceding claim, wherein the foam is integrally formed during forming of the sheet material.
5. A fluted sheet material according to any preceding claim, wherein the foam is formed in situ in the flutes as the sheet material is formed.
6. A fluted sheet material according to Claim 5, wherein the foam is formed by a foaming process when the sheet is formed by extrusion.
7. A fluted sheet material, substantially as hereinbefore described with reference to the accompanying drawings.
GB9305742A 1993-03-19 1993-03-19 Fluted plastic material. Withdrawn GB2276120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9305742A GB2276120A (en) 1993-03-19 1993-03-19 Fluted plastic material.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9305742A GB2276120A (en) 1993-03-19 1993-03-19 Fluted plastic material.

Publications (2)

Publication Number Publication Date
GB9305742D0 GB9305742D0 (en) 1993-05-05
GB2276120A true GB2276120A (en) 1994-09-21

Family

ID=10732388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9305742A Withdrawn GB2276120A (en) 1993-03-19 1993-03-19 Fluted plastic material.

Country Status (1)

Country Link
GB (1) GB2276120A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361219A (en) * 2000-04-14 2001-10-17 Nick Davies Motor vehicle tyre tread wear indicator
US9555918B2 (en) 2011-10-13 2017-01-31 Orbis Corporation Plastic corrugated container with manufacturer's joint adding zero extra thickness
US9604750B2 (en) 2013-12-24 2017-03-28 Orbis Corporation Plastic corrugated container with ultrasonically formed score lines
US10625916B2 (en) 2013-12-24 2020-04-21 Orbis Corporation Plastic corrugated container with soft score line
US10829265B2 (en) 2013-12-24 2020-11-10 Orbis Corporation Straight consistent body scores on plastic corrugated boxes and a process for making same
US11072140B2 (en) 2017-06-20 2021-07-27 Orbis Corporation Balanced process for extrusion of plastic corrugated sheet and subsequent converting into plastic boxes
US11325740B2 (en) 2013-12-24 2022-05-10 Orbis Corporation Straight consistent body scores on plastic corrugated boxes and a process for making same
US11643242B2 (en) 2013-12-24 2023-05-09 Orbis Corporation Air vent for welded portion in plastic corrugated material, and process for forming welded portion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1174287A (en) * 1966-05-23 1969-12-17 Du Pont Ribbed structures of thermoplastic resin.
US3736609A (en) * 1971-04-05 1973-06-05 Compo Tek Corp Laminated water ski
GB1467964A (en) * 1974-04-19 1977-03-23 Nihon Sunply Co Ltd Structural boards
US4565723A (en) * 1982-11-10 1986-01-21 General Electric Plastics Structured Products Europe B.V. Composite polymeric panel and process for making same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1174287A (en) * 1966-05-23 1969-12-17 Du Pont Ribbed structures of thermoplastic resin.
US3736609A (en) * 1971-04-05 1973-06-05 Compo Tek Corp Laminated water ski
GB1467964A (en) * 1974-04-19 1977-03-23 Nihon Sunply Co Ltd Structural boards
US4565723A (en) * 1982-11-10 1986-01-21 General Electric Plastics Structured Products Europe B.V. Composite polymeric panel and process for making same

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361219A (en) * 2000-04-14 2001-10-17 Nick Davies Motor vehicle tyre tread wear indicator
US10252832B2 (en) 2011-10-13 2019-04-09 Menasha Corporation Plastic corrugated container with sealed edges
US9555918B2 (en) 2011-10-13 2017-01-31 Orbis Corporation Plastic corrugated container with manufacturer's joint adding zero extra thickness
US11702241B2 (en) 2011-10-13 2023-07-18 Orbis Corporation Plastic corrugated container with sealed edges
US10961038B2 (en) 2013-12-24 2021-03-30 Orbis Corporation Plastic corrugated container with soft score line
US10625916B2 (en) 2013-12-24 2020-04-21 Orbis Corporation Plastic corrugated container with soft score line
US10829264B2 (en) 2013-12-24 2020-11-10 Orbis Corporation Process for forming plastic corrugated container with ultrasonically formed score lines
US10829265B2 (en) 2013-12-24 2020-11-10 Orbis Corporation Straight consistent body scores on plastic corrugated boxes and a process for making same
US9630739B2 (en) 2013-12-24 2017-04-25 Orbis Corporation Plastic corrugated container and intermediary blank
US11072455B2 (en) 2013-12-24 2021-07-27 Orbis Corporation Process for forming plastic corrugated container and intermediary blank
US11319132B2 (en) 2013-12-24 2022-05-03 Orbis Corporation Plastic corrugated container with soft score line
US11325740B2 (en) 2013-12-24 2022-05-10 Orbis Corporation Straight consistent body scores on plastic corrugated boxes and a process for making same
US11643241B2 (en) 2013-12-24 2023-05-09 Orbis Corporation Process for forming plastic corrugated container and intermediary blank
US11643242B2 (en) 2013-12-24 2023-05-09 Orbis Corporation Air vent for welded portion in plastic corrugated material, and process for forming welded portion
US9604750B2 (en) 2013-12-24 2017-03-28 Orbis Corporation Plastic corrugated container with ultrasonically formed score lines
US11760530B2 (en) 2013-12-24 2023-09-19 Orbis Corporation Process for forming plastic corrugated container with ultrasonically formed score lines
US11072140B2 (en) 2017-06-20 2021-07-27 Orbis Corporation Balanced process for extrusion of plastic corrugated sheet and subsequent converting into plastic boxes

Also Published As

Publication number Publication date
GB9305742D0 (en) 1993-05-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)