GB2029764A - Plastics Laminate - Google Patents
Plastics Laminate Download PDFInfo
- 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- Withdrawn
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 14
- 239000004033 plastic Substances 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 239000002657 fibrous material Substances 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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 or 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)
- Orthopedics, Nursing, And Contraception (AREA)
- Laminated Bodies (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)
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.
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)
| 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 & 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 |
-
1979
- 1979-07-12 GB GB7924253A patent/GB2029764A/en not_active Withdrawn
Cited By (15)
| 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 & 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) |