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1. WO1991000876 - DENSIFIED POLYETHERSULFONE

Publication Number WO/1991/000876
Publication Date 24.01.1991
International Application No. PCT/US1990/003689
International Filing Date 05.07.1990
Chapter 2 Demand Filed 04.02.1991
IPC
C08F 6/14 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
6Post-polymerisation treatments
14Treatment of polymer emulsions
C08J 3/12 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
12Powdering or granulating
C08L 63/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
63Compositions of epoxy resins; Compositions of derivatives of epoxy resins
CPC
C08F 6/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
6Post-polymerisation treatments
14Treatment of polymer emulsions
C08J 2381/06
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
2381Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
06Polysulfones; Polyethersulfones
C08J 3/12
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
12Powdering or granulating
C08J 3/14
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
12Powdering or granulating
14by precipitation from solutions
C08L 63/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
63Compositions of epoxy resins; Compositions of derivatives of epoxy resins
Applicants
  • HEXCEL CORPORATION [US/US]; 11555 Dublin Boulevard Dublin, CA 94566, US
Inventors
  • GHALI, Mounir, M.; US
  • HEDGES, Winston, L.; US
Agents
  • KELBER, Steven, B. ; Oblon, Spivak, McClelland, Maier & Neustadt Fourth Floor 1755 South Jefferson Davis Highway Arlington, VA 22202, US
Priority Data
377,11607.07.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DENSIFIED POLYETHERSULFONE
(FR) POLYETHERSULFONE EPAISSIE
Abstract
(EN)
Polyethersulfone is densified by preparation of a homogeneous paste with a semi-solvent, which may be drawn off by heating and vacuum, from an emulsion prepared from the paste. The resulting PES is substantially densified, with a reduced surface area. The densified PES can be added in significant amounts to thermosetting resin preparations, without a substantial increase in viscosity.
(FR)
On épaissit de la polyéthersulfone en préparant une pâte homogène avec un semi-solvant susceptible d'être extrait par chauffage sous vide d'une émulsion préparée avec la pâte. La PES ainsi obtenue est sensiblement épaissie et présente une superficie réduite. On peut ajouter des quantités significatives de cette PES épaissie à des compositions de résines thermodurcissables sans en augmenter sensiblement la viscosité.
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