Dynamically partially cured thermoplastic blend of monoolefin co

Details Dynamically partially cured thermoplastic blend of monoolefin co Dynamically partially cured thermoplastic blend of monoolefin co

1978-05-01

1984-02-07

Seccuro, Carman J.

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

Synthetic resins

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

525192, 525195, 525197, 525198, 525211, 525240, C08L 2326, C08L 2332, C08L 2336, C08L 2316

Patent

active

RE0315184

ABSTRACT:
Thermoplastic dynamically partially cured blends of monoolefin copolymer rubber (such as EPM or EPDM rubber) with a polyolefin resin (such as polypropylene, polyethylene) exhibit good physical properties and are reprocessable. The dynamic partial cure of the blend is effected by heating the blend with a curative such as a peroxide while shearing the blend. The blends are elastomeric and are used to make molded or extruded articles which have good physical properties without requiring vulcanization.

REFERENCES:
patent: 3203937 (1965-08-01), Breslow et al.
patent: 3218373 (1965-11-01), Salyer
patent: 3243405 (1966-03-01), Boyer
patent: 3256366 (1966-06-01), Corbelli
patent: 3456038 (1969-07-01), Newman
patent: 3564080 (1971-02-01), Pedretti
patent: 3641215 (1972-02-01), Usamoto
Japanese article "Plastics Age" 2 vol. 15, No. 2, 1969; Plastics Age Co. Ltd., pp. 47-52.
Amberg "Vulcanization of Polyolefins" (1964) pp. 286 and 289 Reinhold Pub. Co., N.Y.
Rubber Chemistry and Technology, vol. 46 (1973) p. 275 "1,2-Polybutadiene Resin Co-Agents for Peroxide Cure of Rubber Compounds", Martin.
Hofmann "Vulcanization and Vulcanization Agents" pp. 18 & 19, 1967.
Proceedings of the 11th Engineering Research Committee (1968) pp. 435-458.
Proceedings International Rubber Conference (1954) Amber et al. Wash. D.C.
Loan "Mechanism of Peroxide Vulcanization of Elastomers" Rubber Chemistry and Technology vol. 49 (1967) pp. 149 & 164-166.

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