Compatibilized elastomer blends containing copolymers of isoolef

Details Compatibilized elastomer blends containing copolymers of isoolef Compatibilized elastomer blends containing copolymers of isoolef

1993-03-19

1995-02-21

Seccuro, Jr., 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...

525194, 525221, 525222, 525227, 525211, 525192, 524522, 524523, 524524, C08L 1900, C08L 700, C08L 900, C08L 1100, C08L 2316

Patent

active

053916255

ABSTRACT:
The present invention provides for compatibilized elastomer blend compositions based on a preferred mixture of a copolymer of a C.sub.4 to C.sub.7 isoolefin, such as isobutylene, copolymerized with a para-alkyl styrene comonomer, such as para-methyl styrene wherein at least some of the alkyl substituent groups present in the styrene monomer units contain halogen, and at least one dissimilar elastomer, said blend composition further containing, as a compatibilizer, minor amounts of a copolymer of ethylene and vinyl acetate or a copolymer of ethylene, a lower alkyl acrylate or methacrylate and, optionally, a third comonomer based on acrylic or methacrylic acid.

REFERENCES:
patent: 4397987 (1993-08-01), Cornell
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patent: 4957974 (1990-09-01), Illenda et al.
patent: 5013793 (1991-05-01), Wang et al.
patent: 5140072 (1992-08-01), Takeshita
patent: 5162445 (1992-11-01), Powers et al.
patent: 5281651 (1994-01-01), Arjunan et al.

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