Higher .alpha.-olefin copolymer, vibration-insulating rubber mol

Details Higher .alpha.-olefin copolymer, vibration-insulating rubber mol Higher .alpha.-olefin copolymer, vibration-insulating rubber mol

1993-01-21

1995-02-07

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526125, 526128, 526335, 5253321, C08F23620

Patent

active

053876644

ABSTRACT:
The higher .alpha.-olefin copolymer of the invention is a copolymer of specific higher .alpha.-olefin, specific .alpha.,.omega.-diene and specific non-conjugated diene, and this copolymer has a specific molar ratio of the higher .alpha.-olefin to the .alpha.,.omega.-diene, a specific content of the non-conjugated diene and a specific intrinsic viscosity. This higher .alpha.-olefin copolymer can be prepared using a catalyst for olefin polymerization formed from a specific solid titanium catalyst component, an organometallic compound catalyst component and an electron donor catalyst component. The vibration-insulating rubber molded product of the invention is formed from a vulcanized product of the above-mentioned copolymer. The above-mentioned copolymer is excellent not only in weathering resistance, ozone resistance, thermal aging resistance, low-temperature characteristics, vibration-damping properties and dynamic fatigue resistance but also in processability, so that an excellent vulcanized product can be obtained from the copolymer.

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Patent Abstracts of Japan vol. 14, No. 220 (C-717) (4163) Oct. 5, 1990, JPA-0251512 (Japan Synthetic Rubber Co. Ltd.) 21-0201990.
Nielson, Mechanical Properties of Polymers and Composites, Marcel Dekker, Inc., N.Y., 1974 20-1.

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