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. 16, 1993
Filed:
Oct. 27, 1989
Applicant:
Inventor:
Hiroji Kitagawa, Nagoya, JP;
Assignee:
Kitagawa Industries Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
524847 ; 524871 ; 524872 ; 524873 ; 524874 ; 524875 ;
Abstract
The sealant compound of this invention comprises polyurethane resin or its precursor mixed with vapor grown carbon fiber. In the compound, whisker-shaped carbon fibers with high tensile strength intertwine and form lattices. In addition, carbon fibers are anchored in the polyurethane resin. Consequently, the compound of this invention has more tensile strength than the conventional compound containing black carbon. Thus the seal consisting of the compound of this invention has high adhesion and sealing effects.