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:
Jul. 13, 1993
Filed:
Aug. 07, 1991
Kakutaro Kauchi, Sodegaura, JP;
Youhei Suzuki, Sodegaura, JP;
Yasumasa Fujii, Tokyo, JP;
Kenji Yokoyama, Tokyo, JP;
Yoshio Iida, Tokyo, JP;
Masahiko Ooyama, Tokyo, JP;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
NEC Environment Engineering, Ltd., Tokyo, JP;
Abstract
A thermal adhesive vibration damping sheet comprising a sheet substrate having crystalline polyolefin particles attached to a surface thereof, said polyolefin particles having a mean particle size of 1 to 20 .mu.m and exhibiting an endothermic curve having a high temperature side endothermic peak in the range of from 50.degree. to 230.degree. C. as measured by a differential scanning calorimeter. The sheet has improved blocking resistance, adhesion to sheet steel through heat fusion, and impact resistance at low temperatures.