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:
Apr. 26, 1988
Filed:
May. 15, 1986
Masahide Ochiumi, Yokkaichi, JP;
Shinji Horie, Yokkaichi, JP;
Yukichi Watanabe, Yokohama, JP;
Norihiro Sekizuka, Yokohama, JP;
Akira Itsubo, Yokkaichi, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Mitsubishi Petrochemical Company Limited, Tokyo, JP;
Abstract
A vibration-damping resin composition of the invention comprises 10 to 95% by weight of an amorphous thermoplastic resin polymer (a) and 90 to 5% by weight of a crystalline thermoplastic polymer (b) incompatible with the polymer (a). The polymer (a) has a glass transition temperature lower than that of the polymer (b) and a maximum tan.delta. of 0.5 or more within a predetermined temperature and frequency range. The polymer (b) has a melting point higher than the glass transition temperature of the polymer (a) and a shear storage modulus of 1.times.10.sup.8 dyne/cm.sup.2 or more at the temperature and frequency at which the polymer (a) exhibits the maximum tan.delta..