GB1440192A - Microporous film - Google Patents

Microporous film

Info

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
Application number
GB619173A
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.)
Johnson and Johnson KK
Johnson and Johnson
Original Assignee
Johnson and Johnson KK
Johnson and Johnson
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 Johnson and Johnson KK, Johnson and Johnson filed Critical Johnson and Johnson KK
Priority to GB619173A priority Critical patent/GB1440192A/en
Publication of GB1440192A publication Critical patent/GB1440192A/en
Expired legal-status Critical Current

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.
GB619173A 1972-09-05 1973-02-08 Microporous film Expired GB1440192A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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