WO2002085970A3 - Methods of making biodegradable films having enhanced ductility and breathability - Google Patents

Methods of making biodegradable films having enhanced ductility and breathability Download PDF

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Publication number
WO2002085970A3
WO2002085970A3 PCT/US2002/012691 US0212691W WO02085970A3 WO 2002085970 A3 WO2002085970 A3 WO 2002085970A3 US 0212691 W US0212691 W US 0212691W WO 02085970 A3 WO02085970 A3 WO 02085970A3
Authority
WO
WIPO (PCT)
Prior art keywords
biodegradable
methods
breathability
polymer
biodegradable films
Prior art date
Application number
PCT/US2002/012691
Other languages
French (fr)
Other versions
WO2002085970A2 (en
Inventor
Vasily A Topolkaraev
Dave Allen Soerens
Original Assignee
Kimberly Clark Co
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 Kimberly Clark Co filed Critical Kimberly Clark Co
Priority to MXPA03009613A priority Critical patent/MXPA03009613A/en
Publication of WO2002085970A2 publication Critical patent/WO2002085970A2/en
Publication of WO2002085970A3 publication Critical patent/WO2002085970A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • 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
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/225—Mixtures of macromolecular compounds
    • 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
    • A61L15/62—Compostable, hydrosoluble or hydrodegradable materials
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/16—Biodegradable polymers
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

The present invention is directed to methods of making biodegradable films and biodegradable precursor films having enhanced breathability and ductility. The method includes blending a water soluble polymer and a biodegradable polymer to form a blended polymer mixture. The biodegradable polymer is preferably a biodegradable aliphatic polyester, and the water-soluble polymer is preferably polyethylene oxide and/or polyethylene glycol. The blended polymer mixture is formed into a precursor film. The precursor film is further processed to form a breathable biodegradable film.
PCT/US2002/012691 2001-04-23 2002-04-18 Methods of making biodegradable films having enhanced ductility and breathability WO2002085970A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MXPA03009613A MXPA03009613A (en) 2001-04-23 2002-04-18 Methods of making biodegradable films having enhanced ductility and breathability.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/840,749 2001-04-23
US09/840,749 US6660211B2 (en) 2001-04-23 2001-04-23 Methods of making biodegradable films having enhanced ductility and breathability

Publications (2)

Publication Number Publication Date
WO2002085970A2 WO2002085970A2 (en) 2002-10-31
WO2002085970A3 true WO2002085970A3 (en) 2003-03-13

Family

ID=25283116

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/012691 WO2002085970A2 (en) 2001-04-23 2002-04-18 Methods of making biodegradable films having enhanced ductility and breathability

Country Status (4)

Country Link
US (1) US6660211B2 (en)
AR (1) AR033229A1 (en)
MX (1) MXPA03009613A (en)
WO (1) WO2002085970A2 (en)

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Also Published As

Publication number Publication date
AR033229A1 (en) 2003-12-10
WO2002085970A2 (en) 2002-10-31
US20030015826A1 (en) 2003-01-23
US6660211B2 (en) 2003-12-09
MXPA03009613A (en) 2004-02-12

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