Core/shell fluoropolymer compositions

Details Core/shell fluoropolymer compositions Core/shell fluoropolymer compositions

1983-05-20

1984-09-04

Lieberman, Allan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525276, C08F25908, C08L 5106

Patent

active

044698461

ABSTRACT:
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.

REFERENCES:
patent: 4036802 (1977-07-01), Poirier
patent: 4038231 (1977-07-01), Downer et al.
patent: 4158678 (1979-06-01), Tatemoto et al.
patent: 4243770 (1981-01-01), Tatemoto et al.
patent: 4326046 (1982-04-01), Miyaka et al.
M. H. Kaufman et al., Reinforcement of Fluoroelastomers with Halopolymers, Rubber Chemistry and Technology, Mar. 1963, 527-532.

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