GB2029764A - Plastics Laminate - Google Patents

Plastics Laminate Download PDF

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Publication number
GB2029764A
GB2029764A GB7924253A GB7924253A GB2029764A GB 2029764 A GB2029764 A GB 2029764A GB 7924253 A GB7924253 A GB 7924253A GB 7924253 A GB7924253 A GB 7924253A GB 2029764 A GB2029764 A GB 2029764A
Authority
GB
United Kingdom
Prior art keywords
layer
activated carbon
laminate according
laminate
carbon particles
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Withdrawn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
GB7924253A
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.)
Kingsdown Medical Consultants Ltd
Original Assignee
Kingsdown Medical Consultants 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
Priority claimed from GB7829573A external-priority patent/GB2025315A/en
Application filed by Kingsdown Medical Consultants Ltd filed Critical Kingsdown Medical Consultants Ltd
Priority to GB7924253A priority Critical patent/GB2029764A/en
Publication of GB2029764A publication Critical patent/GB2029764A/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Withdrawn legal-status Critical Current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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
    • A61F5/441—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
    • 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
    • B32B27/10—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 paper or cardboard
    • 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
    • B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • 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
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • 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
    • B32B2535/00—Medical equipment, e.g. bandage, prostheses, catheter

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Textile Engineering (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Laminated Bodies (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

A synthetic plastics laminate comprises, three layers, the first layer 10 being a layer of plastics material which is permeable to gases and impermeable to liquids, the second layer 12 being a layer of activated carbon cloth or activated carbon particles, or such particles carried by or impregnated in a paper or compressed wood fibre layer or carried on or in a non-woven layer of fibrous material, and the third layer 14 being a layer of material which is the same as or different from the first layer and if the latter is permeable to gases and impermeable to liquids. <IMAGE>

Description

SPECIFICATION Plastics Laminate This invention relates to a plastics laminate.
According to the invention, there is provided a plastics laminate consisting of, or including, three layers, the first layer being a layer of plastics material which is permeable to gases and impermeable to liquids, the second layer being a layer of activated carbon cloth or activated carbon particles or such particles carried by or impregnated in a paper or compressed wood fibre layer or carried on or in a non-woven layer of fibrous material such as that known by the trade name "Bondina", and the third layer being a layer of material which is the same as or different from the first layer and if the latter is permeable to gases and impermeable to liquids.
Such a laminate is particularly although not exclusively useful in the manufacture of ostomy appliances, for example ostomy bag covers, and ostomy bags.
One example of a suitable plastics material for the first and third layers is a chemically treated polyvinyl chloride known commercially by the name of 'Micropore'.
According to a preferred embodiment of the invention, there is provided an ostomy bag comprising a pair of facing walls of plastics material welded together around their periphery, and one of which has a hole therethrough to receive the stoma of a user of the bag, in which one or both of the walls of the bag are constituted by a laminate as specified in the second paragraph of this specification.
In one embodiment of the invention the third layer may be a layer of adhesive material, and this may be applied by spraying onto a sheet or strip which forms the first layer, which extends generally horizontally, and which carries activated carbon particles uniformly distriputed thereover.
In this case the adhesive serves to secure and locate the particles on the first layer.
In another embodiment of the invention the first and third layers are the aforesaid 'Micropore' material and the second layer is activated carbon particles. In yet another embodiment of the invention, one or both of the first and third layers is constituted by thin polythene.
Figure 1 illustrates one example of a laminate according to the invention, and Figure 2 illustrates diagrammatically one method of making a laminate according to the invention.
The laminate shown in Figure 1 consists of a first layer 10 of a plastics material which is permeable to gases and impermeable to liquids, a second layer 12 of activated carbon particles carried by or impregnated in a nonwoven or paper or wood fibre material, and a third layer 14 which is the same material-but not necessarily the same thickness-as the first layer. In the use of such a laminate as one wall of an ostomy bag, gases (flatus) which accumulate in the bag, can escape by direct passage through the wall and in doing so have substantially all the noxious smells removed therefrom by the carbon particles, and yet the liquid and solid contents of the bag are securely retained therein.
One method of making a laminate is shown in Figure 2. A plastics extruder 20 of conventional construction extrudes, generally horizontally, a layer 22 which constitutes the first layer. Just downstream of the extruder 20 is located a hopper 24 containing activated carbon particles, and the mouth 26 of this hopper is adjacent to a distributor 28 which ensures that the particles are distributed over the whole area of the first layer. A second extruder 30 is located downstream of the hopper 24 and extrudes a layer of plastics material on top of the carbon particles, to form the third layer. A pair of rolls 32, or other suitable mechanism, presses assembly together to form the resulting laminate 34.
In an alternative method, the carbon particles may be electrostatically distributed on the first layer before the third layer is applied thereto, and in this case it may be preferred to apply the third layer by spraying on adhesive.
To the best of the Applicant's knowledge and belief, there has been no prior proposal to effect a filtering or deodorising of gas by passing it through a tripple-layer integral laminate of which the middle layer is activated carbon particles or cloth or such particles carried by or impregnated in a paper or compressed wood fibre layer or carried on or in a non-woven layer of fibrous material such as that known by the trade name "Bondina", nor has there been any proposal to, nor practical method to, manufacture of a laminate as defined herein.

Claims (8)

Claims
1. A plastics laminate consisting of, or including, three layers, the first layer being a layer of plastics material which is permeable to gases and impermeable to liquids, the second layer being a layer of activated carbon cloth or activated carbon particles, or such particles carried by or impregnated in a paper or compressed wood fibre layer or carried on or in a non-woven layer of fibrous material such as that known by the trade name "Bondina", and the third layer being a layer of material which is the same as or different from the first layer and if the latter is permeable to gases and impermeable to liquids.
2. A laminate according to claim 1 in which the first layer is chemically treated polyvinyl chloride.
3. A laminate according to claim 1 or 2 in which the third layer is chemically treated polyvinyl chloride.
4. A laminate according to claim 1 or 2 in which the third layer is an adhesive.
5. A laminate according to any one of claims 1-4 in which the second layer is of paper which carries or is impregnated with activated carbon particles.
6. A laminate according to any one of claims 1-4 in which the second layer is of a nonwoven fibrous mat which carries activated carbon particles.
7. A laminate according to claim 1 in which the first and/or the third layer is thin polythene (i.e.
thickness less than 0.2 mm).
8. An ostomy bag which includes a wall made of a laminate according to any one of claims 17.
GB7924253A 1978-07-12 1979-07-12 Plastics Laminate Withdrawn GB2029764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7924253A GB2029764A (en) 1978-07-12 1979-07-12 Plastics Laminate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7829573A GB2025315A (en) 1978-07-12 1978-07-12 Plastics Laminate
GB7924253A GB2029764A (en) 1978-07-12 1979-07-12 Plastics Laminate

Publications (1)

Publication Number Publication Date
GB2029764A true GB2029764A (en) 1980-03-26

Family

ID=26268188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7924253A Withdrawn GB2029764A (en) 1978-07-12 1979-07-12 Plastics Laminate

Country Status (1)

Country Link
GB (1) GB2029764A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093175A1 (en) * 1981-10-08 1983-11-09 TERAUCHI, Ryugo Urine collector
EP0116363A1 (en) * 1983-02-09 1984-08-22 HELSA-WERKE Helmut Sandler GmbH &amp; Co. KG Colostomy pouch with an assembly for the filtering and controlled venting of gases
US4469744A (en) * 1980-07-11 1984-09-04 E. I. Du Pont De Nemours And Company Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer
US4518650A (en) * 1980-07-11 1985-05-21 E. I. Du Pont De Nemours And Company Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer
FR2611142A1 (en) * 1987-02-19 1988-08-26 Smiths Industries Plc OSTOMY POCKET
EP0437723A2 (en) * 1990-01-16 1991-07-24 Hüls Troisdorf Aktiengesellschaft Composite seal
EP0525409A2 (en) * 1991-07-04 1993-02-03 Japan Gore-Tex, Inc. A liquid-penetration-resistant sorbent laminate
WO2001000121A1 (en) * 1999-06-25 2001-01-04 Kimberly-Clark Worldwide, Inc. Absorbent product with breathable dampness inhibitor
US6663611B2 (en) 1999-09-28 2003-12-16 Kimberly-Clark Worldwide, Inc. Breathable diaper with low to moderately breathable inner laminate and more breathable outer cover
US6673980B1 (en) 1999-07-16 2004-01-06 Kimberly-Clark Worldwide, Inc. Absorbent product with creped nonwoven dampness inhibitor

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469744A (en) * 1980-07-11 1984-09-04 E. I. Du Pont De Nemours And Company Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer
US4518650A (en) * 1980-07-11 1985-05-21 E. I. Du Pont De Nemours And Company Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer
EP0093175A1 (en) * 1981-10-08 1983-11-09 TERAUCHI, Ryugo Urine collector
EP0093175A4 (en) * 1981-10-08 1985-09-09 Ryugo Terauchi Urine collector.
EP0116363A1 (en) * 1983-02-09 1984-08-22 HELSA-WERKE Helmut Sandler GmbH &amp; Co. KG Colostomy pouch with an assembly for the filtering and controlled venting of gases
US5009647A (en) * 1987-02-19 1991-04-23 Smiths Industries Public Limited Company Water closet disposable ostomy bags and materials
FR2611142A1 (en) * 1987-02-19 1988-08-26 Smiths Industries Plc OSTOMY POCKET
EP0437723A2 (en) * 1990-01-16 1991-07-24 Hüls Troisdorf Aktiengesellschaft Composite seal
EP0437723A3 (en) * 1990-01-16 1992-08-05 Huels Troisdorf Aktiengesellschaft Composite seal
EP0525409A2 (en) * 1991-07-04 1993-02-03 Japan Gore-Tex, Inc. A liquid-penetration-resistant sorbent laminate
EP0525409A3 (en) * 1991-07-04 1993-04-14 Japan Gore-Tex, Inc. A liquid-penetration-resistant sorbent laminate
WO2001000121A1 (en) * 1999-06-25 2001-01-04 Kimberly-Clark Worldwide, Inc. Absorbent product with breathable dampness inhibitor
US6583331B1 (en) 1999-06-25 2003-06-24 Kimberly-Clark Worldwide, Inc. Absorbent product with breathable dampness inhibitor
US6673980B1 (en) 1999-07-16 2004-01-06 Kimberly-Clark Worldwide, Inc. Absorbent product with creped nonwoven dampness inhibitor
US6663611B2 (en) 1999-09-28 2003-12-16 Kimberly-Clark Worldwide, Inc. Breathable diaper with low to moderately breathable inner laminate and more breathable outer cover

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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)