The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 1995
Filed:
Jan. 21, 1993
Masaaki Kawasaki, Waki, JP;
Toshimasa Takata, Waki, JP;
Keiji Okada, Ichihara, JP;
Kazuhiko Murata, Ichihara, JP;
Mitsuhiko Onda, Kuga, JP;
Tetsuo Tojo, Ichihara, JP;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
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.