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:
Dec. 01, 2009
Filed:
Nov. 29, 2004
Makoto Yoshitake, Funabashi, JP;
Koji Nakanishi, Chiba, JP;
Hisataka Nakashima, Chiba, JP;
Hideki Kobayashi, Ichihara, JP;
Masashi Murakami, Hiroshima, JP;
Kasumi Takeuchi, Ichihara, JP;
Makoto Yoshitake, Funabashi, JP;
Koji Nakanishi, Chiba, JP;
Hisataka Nakashima, Chiba, JP;
Hideki Kobayashi, Ichihara, JP;
Masashi Murakami, Hiroshima, JP;
Kasumi Takeuchi, Ichihara, JP;
Dow Corning Corporation, Midland, MI (US);
Dow Corning Toray Company, Ltd., Tokyo, JP;
Abstract
An addition-curable organopolysiloxane resin composition having, in a state of cued body, a hardness of 60 to 100 at 25 degree C. and 40 to 100 at 150 degree C. as measured in accordance with the provisions of ASTM D2240-86, said composition comprising: (A) 100 parts by weight of an organopolysiloxane resin comprised of at least alkenyl groups and phenyl groups; (B) 10 to 50 parts by weight of an organooligosiloxane comprised of at least alkeyl groups and phenyl groups; (C) 20 to 100 parts by weight of an organohydrogenoligosiloxane of organohydrogenpolysiloxane; and (D) an addition-reaction catalyst in a catalytic quantity; an optical material that is comprised of a cured body produced from aforementioned components (A), (B), and (C) and possesses the aforementioned characteristics.