PROCESSO PARA PREPARAR UMA COMPOSICAO POLIMERICA EM PARTICULAS;PROCESSO PARA AUMENTAR A RESISTENCIA AO RASGAMENTO DE FLUOROELASTOMEROS CURADOS

PROCESSO PARA PREPARAR UMA COMPOSICAO POLIMERICA EM PARTICULAS;PROCESSO PARA AUMENTAR A RESISTENCIA AO RASGAMENTO DE FLUOROELASTOMEROS CURADOS

Core/shell fluoropolymer compositions in particulate form, wherein the core is a highly crystalline polymer such as, for example, tetrafluoroethylene, and the shell is an elastomeric fluoropolymer such as, for example, a vinylidene fluoride/hexafluoropropene copolymer, optionally also containing a c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AUSAT ALI KHAN, CHARLES WINFIELD STEWART
Format: Patent
Sprache:por
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:Core/shell fluoropolymer compositions in particulate form, wherein the core is a highly crystalline polymer such as, for example, tetrafluoroethylene, and the shell is an elastomeric fluoropolymer such as, for example, a vinylidene fluoride/hexafluoropropene copolymer, optionally also containing a cure site monomer are outstanding additives for uncured fluoroelastomer compositions, which after curing in the presence of dispersed core/shell fluoropolymers have improved tear strength, tear strength to modulus ratio, and certain other physical properties.