Elastomer blend for sound and vibration damping

Details Elastomer blend for sound and vibration damping Elastomer blend for sound and vibration damping

1990-04-04

1992-12-15

Seidleck, James J.

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

Synthetic resins

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

525191, 524526, C08L 900, C08L 4700

Patent

active

051717905

ABSTRACT:
An elastomer blend is provided for dissipation of mechanical and sonic eny over a broad temperature range. This blend of elastomers comprises from about 60-95% by weight of polybutadiene having more than about 90% 1,2-microstructure and a molecular weight of at least 80,000, the balance being predominantly polyisoprene having at least about 70% cis-1,4-microstructure and a molecular weight of at least 120,000. The blend has a single glass transition ranging over at least sixty Centigrade degrees.

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patent: 4483381 (1984-11-01), Scriver
patent: 4790365 (1988-12-01), Sandstrom et al.
patent: 4894420 (1990-01-01), Scriver

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