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. 16, 2002
Filed:
Apr. 05, 2000
Applicant:
Inventors:
Kei Miyoshi, Gunma-ken, JP;
Kouichi Tanaka, Gunma-ken, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 8/310 ;
U.S. Cl.
CPC ...
C08L 8/310 ;
Abstract
In a silicone rubber composition comprising an organopolysiloxane as a base polymer, 0.1-50 parts by weight of a modified silicone fluid having a melting point of up to 100° C. and a refractive index difference of 0.01-0.05 from the base polymer is blended per 100 parts by weight of the composition. The composition is cast and cured to form a mother mold which maintains parting properties over a long term.