Thermoplastic elastomer blends

Details Thermoplastic elastomer blends Thermoplastic elastomer blends

1979-01-08

1981-02-10

Ziegler, J.

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

Synthetic resins

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

525 95, 525 98, 525209, 525211, 525218, 525223, 525232, 525241, C08L 5300

Patent

active

042502730

ABSTRACT:
Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

REFERENCES:
patent: 3407253 (1965-10-01), Yoshimura et al.
patent: 3830767 (1974-08-01), Condon
patent: 4151159 (1979-04-01), Geall et al.

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