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:
Jun. 11, 2019
Filed:
Mar. 11, 2016
Dow Corning Toray Co., Ltd., Tokyo, JP;
Yoshitsugu Morita, Chiba, JP;
Dow Toray Co., Ltd., Tokyo, JP;
Abstract
An organopolysiloxane represented by the following average unit formula: (RSiO)(XRSiO)(OSiR—Y—RSiO)is provided. Rand Reach individually represent a C-Calkyl group, C-Caryl group, or C-Caralkyl group. X represents a C-Calkenyl group or a siloxane residue and Y represents a siloxane linking group. Alternatively X represents a C-Calkenyl group or a silphenylene residue and Y represents a silphenylene linking group. Subscript 'a' is a number in a range of 0.65 to 0.90, 'b' is a number in a range of 0.10 to 0.35, “c” is a number in a range of 0 to 0.10, and “a”+“b”+“c”=1.00. The organopolysiloxane has a siloxane residue or silphenylene residue having a silicon atom-bonded hydrogen atom in an organopolysiloxane resin block. The organopolysiloxane generally exhibits high refractive index and high transparency as well as excellent handleability.