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1. WO1996004336 - METHOD OF MANUFACTURING MONOLITHIC STRUCTURES FROM POLYVINYL ALCOHOL

Publication Number WO/1996/004336
Publication Date 15.02.1996
International Application No. PCT/US1994/012871
International Filing Date 07.11.1994
Chapter 2 Demand Filed 16.02.1996
IPC
C08J 3/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
18Plasticising macromolecular compounds
C08J 5/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
C08J 5/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
CPC
C08J 2329/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2329Characterised 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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
02Homopolymers or copolymers of unsaturated alcohols
04Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
C08J 3/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
18Plasticising macromolecular compounds
C08J 5/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
Applicants
  • ISOLYSER COMPANY, INC. [US/US]; 4320 International Boulevard, N.W. Norcorss, GA 30093, US
Inventors
  • HONEYCUTT, Travis, W.; US
  • KHAMVONGSA, Bryan; US
  • LEE, Baosheng; US
Agents
  • WITTENBERG, Malcolm, B. ; Crosby, Heafey, Roach & May 1999 Harrison Street Oakland, CA 94612, US
Priority Data
08/286,65005.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF MANUFACTURING MONOLITHIC STRUCTURES FROM POLYVINYL ALCOHOL
(FR) PROCEDE DE FABRICATION DE STRUCTURES MONOLITHES A PARTIR D'ALCOOLS POLYVINYLIQUES
Abstract
(EN)
A method of forming a useful molded part or film of polyvinyl alcohol. The polyvinyl alcohol, together with a plasticizer is injection or blow molded to form the useful molded part or melt processed (blown or cast extrusion) to form the film wherein upon forming the useful molded part or film, the plasticizer is substantially removed to create the useful molded part or film which is selectively hot water soluble and which is resistant to the affects of moisture below the solubility temperature.
(FR)
L'invention concerne un procédé de formation d'un film ou d'une pièce moulée consituée d'alcool polyvinylique. L'alcool polyvinylique mélangé à un plastifiant est moulé par soufflage ou injection pour former la pièce moulée utile ou traité à l'état fondu (soufflé ou extrudé) pour former le film, après quoi le plastifiant est éliminé afin de créer le film ou pièce moulée utile qui est soluble sélectivement dans l'eau chaude et qui n'est pas affectée par l'humidité en dessous de la température de solubilité.
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