CA2111712A1 - Biodegradable, liquid impervious films - Google Patents

Biodegradable, liquid impervious films

Info

Publication number
CA2111712A1
CA2111712A1 CA002111712A CA2111712A CA2111712A1 CA 2111712 A1 CA2111712 A1 CA 2111712A1 CA 002111712 A CA002111712 A CA 002111712A CA 2111712 A CA2111712 A CA 2111712A CA 2111712 A1 CA2111712 A1 CA 2111712A1
Authority
CA
Canada
Prior art keywords
biodegradable
liquid impervious
films
ethylene
disclosed
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.)
Granted
Application number
CA002111712A
Other languages
French (fr)
Other versions
CA2111712C (en
Inventor
Douglas Toms
Andrew J. Wnuk
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.)
Procter and Gamble Co
Original Assignee
Douglas Toms
Andrew J. Wnuk
The Procter & Gamble Company
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24899335&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2111712(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Douglas Toms, Andrew J. Wnuk, The Procter & Gamble Company filed Critical Douglas Toms
Publication of CA2111712A1 publication Critical patent/CA2111712A1/en
Application granted granted Critical
Publication of CA2111712C publication Critical patent/CA2111712C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/06—Polyurethanes from polyesters
    • 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
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Mechanical Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Liquid impervious, biodegradable films are disclosed. In particular, the films comprise a blend of an interpenetrated ne-twork of destructurized starch with ethylene/acrylic acid copolymers or ethylene/vinyl alcohol copolymers, and an aliphatic pol-yester such as polycaprolactone. Diapers, sanitary napkins, pantiliners, and the like, containing backsheets prepared from the foregoing materials are also disclosed.
CA 2111712 1991-06-26 1992-06-17 Biodegradable, liquid impervious films Expired - Fee Related CA2111712C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US72179591A 1991-06-26 1991-06-26
US721,795 1991-06-26
PCT/US1992/005137 WO1993000399A1 (en) 1991-06-26 1992-06-17 Biodegradable, liquid impervious films

Publications (2)

Publication Number Publication Date
CA2111712A1 true CA2111712A1 (en) 1993-01-07
CA2111712C CA2111712C (en) 2001-07-03

Family

ID=24899335

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2111712 Expired - Fee Related CA2111712C (en) 1991-06-26 1992-06-17 Biodegradable, liquid impervious films

Country Status (21)

Country Link
US (1) US5422387A (en)
EP (1) EP0591409B1 (en)
JP (1) JPH06508868A (en)
KR (1) KR100215378B1 (en)
AU (1) AU670914B2 (en)
BR (1) BR9206215A (en)
CA (1) CA2111712C (en)
CZ (1) CZ288293A3 (en)
DE (1) DE69230175T2 (en)
ES (1) ES2137189T3 (en)
FI (1) FI935820A (en)
HU (1) HU216133B (en)
IE (1) IE922065A1 (en)
MX (1) MX9203308A (en)
NO (1) NO303833B1 (en)
PH (1) PH30947A (en)
PL (1) PL173320B1 (en)
PT (2) PT8542T (en)
SG (1) SG52351A1 (en)
SK (1) SK147693A3 (en)
WO (1) WO1993000399A1 (en)

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KR100214922B1 (en) * 1991-06-26 1999-08-02 데이비드 엠 모이어 Disposable absorbent articles with biodegradable backsheets
DE69317423T2 (en) * 1992-06-26 1998-07-09 Procter & Gamble Biodegradable, liquid-impermeable multilayer film composition
US5939467A (en) * 1992-06-26 1999-08-17 The Procter & Gamble Company Biodegradable polymeric compositions and products thereof
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AU699122B2 (en) * 1993-12-20 1998-11-26 Procter & Gamble Company, The pH-modified polymer compositions with enhanced biodegradability
US5500465A (en) * 1994-03-10 1996-03-19 Board Of Trustees Operating Michigan State University Biodegradable multi-component polymeric materials based on unmodified starch-like polysaccharides
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SK147693A3 (en) 1994-09-07
CA2111712C (en) 2001-07-03
KR100215378B1 (en) 1999-09-01
HUT67772A (en) 1995-04-28
PT101726B (en) 1997-11-28
PT8542T (en) 1993-03-31
NO934808D0 (en) 1993-12-23
DE69230175D1 (en) 1999-11-25
NO303833B1 (en) 1998-09-07
US5422387A (en) 1995-06-06
MX9203308A (en) 1992-12-01
FI935820A0 (en) 1993-12-23
AU2251492A (en) 1993-01-25
NO934808L (en) 1994-02-25
JPH06508868A (en) 1994-10-06
FI935820A (en) 1994-02-04
AU670914B2 (en) 1996-08-08
SG52351A1 (en) 1998-09-28
HU9303729D0 (en) 1994-04-28
EP0591409B1 (en) 1999-10-20
EP0591409A1 (en) 1994-04-13
ES2137189T3 (en) 1999-12-16
IE922065A1 (en) 1992-12-30
BR9206215A (en) 1995-05-02
CZ288293A3 (en) 1994-07-13
HU216133B (en) 1999-04-28
PH30947A (en) 1997-12-23
WO1993000399A1 (en) 1993-01-07
PL173320B1 (en) 1998-02-27
PT101726A (en) 1996-01-31
DE69230175T2 (en) 2000-04-27

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