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. 23, 2002
Filed:
Jan. 21, 2000
Hideki Kobayashi, Chiba Prefecture, JP;
Mari Tateishi, Chiba Prefecture, JP;
Tadashi Okawa, Chiba Prefecture, JP;
Dow Corning Toray Silicone Co., Ltd., Tokyo, JP;
Abstract
A high-refractive-index optical silicone oil comprising a pentasiloxane having the formula RMe SiO(Me SiO) SiMe R wherein Me is methyl, each R is independently a C to C aralkyl, and the silicone oil has a refractive index of from 1.45 to 1.50 at 25° C.; a method of preparing a high-refractive-index optical silicone oil; a high-refractive-index optical silicone oil mixture comprising a pentasiloxane having the formula RMe SiO(Me SiO) SiMe R wherein Me is methyl, each R is independently a C to C aralkyl, and a disiloxane having the formula RMe SiOSiMe R wherein Me and R as defined above and wherein the mixture has a refractive index of from 1.45 to 1.50 at 25° C.; and a method of preparing a high-refractive-index optical silicone oil mixture.