GB1440192A - Microporous film - Google Patents
Microporous filmInfo
- Publication number
- GB1440192A GB1440192A GB619173A GB619173A GB1440192A GB 1440192 A GB1440192 A GB 1440192A GB 619173 A GB619173 A GB 619173A GB 619173 A GB619173 A GB 619173A GB 1440192 A GB1440192 A GB 1440192A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- plasticizer
- plastisol
- johnson
- polyvinyl chloride
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/425—Porous materials, e.g. foams or sponges
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Hematology (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dispersion Chemistry (AREA)
- Materials For Medical Uses (AREA)
Abstract
1440192 Laminates JOHNSON & JOHNSON 5 Dec 1973 [5 Sept 1972 8 Feb 1973] 41128/72 Heading B5N [Also in Divisions A5 and C3] A flexible porous film comprises a foamed plasticized polyvinyl chloride in which at least a major proportion by weight of the plasticizer is a polymeric plasticizer of molecular weight of at least 600, the film having open cells which have a diameter less than the thickness of the film. The film may be made by mixing a liquid, which volatilizes without decomposition with a plastisol comprising polyvinyl chloride and preferably the above plasticizer, casting the mixture in the form of a film and heating the film to volatilize the liquid and gel the plastisol. The porous film may form a surgical dressing by being used as a backing on an absorbent pad for wound exudate, the other surface of the pad having a pervious facing. The film may also be used to protect stainless steel surfaces by being adhered thereto.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB619173A GB1440192A (en) | 1972-09-05 | 1973-02-08 | Microporous film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4112872 | 1972-09-05 | ||
GB619173A GB1440192A (en) | 1972-09-05 | 1973-02-08 | Microporous film |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1440192A true GB1440192A (en) | 1976-06-23 |
Family
ID=26240512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB619173A Expired GB1440192A (en) | 1972-09-05 | 1973-02-08 | Microporous film |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1440192A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009041352A1 (en) | 2007-09-25 | 2009-04-02 | Fujifilm Corporation | Process for producing porous film, porous film, and composite material |
-
1973
- 1973-02-08 GB GB619173A patent/GB1440192A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009041352A1 (en) | 2007-09-25 | 2009-04-02 | Fujifilm Corporation | Process for producing porous film, porous film, and composite material |
EP2194088A1 (en) * | 2007-09-25 | 2010-06-09 | Fujifilm Corporation | Process for producing porous film, porous film, and composite material |
EP2194088A4 (en) * | 2007-09-25 | 2011-05-25 | Fujifilm Corp | Process for producing porous film, porous film, and composite material |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |