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:
Oct. 14, 2025
Filed:
Feb. 19, 2021
Dow Toray Co., Ltd., Tokyo, JP;
Takuya Ogawa, Ichihara, JP;
DOW TORAY CO., LTD., Tokyo, JP;
Abstract
A photocurable liquid silicone composition, that has low viscosity that facilitates injection into a small gap, cures quickly by irradiating with a high energy beam (such as ultraviolet light or the like), has a refractive index after curing that is high not only in a visible region but also in an infrared region, and is particularly useful as a material for a device using an infrared LED light source, is provided. The photocurable liquid silicone composition comprises: (A) an organosilane or low molecular weight organosiloxane with one to five silicon atoms and in one molecule, at least two alkenyl groups and at least two monovalent functional groups selected from aromatic groups and aralkyl groups, (C) in one molecule, a compound having at least two mercapto groups, and (D) a photoradical initiator. The refractive index of the entire liquid composition, prior to curing, is 1.48 or higher.