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. 28, 2022
Filed:
Jul. 11, 2019
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Kohei Otake, Annaka, JP;
Nobuaki Matsumoto, Annaka, JP;
Taichi Kitagawa, Annaka, JP;
Toshiyuki Ozai, Annaka, JP;
Atsushi Yaginuma, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
According to the present invention, an ultraviolet curable silicone composition for stereolithography, which contains (A) an organopolysiloxane that has two groups represented by formula (1) (wherein each Rindependently represents a monovalent hydrocarbon group having 1-20 carbon atoms; Rrepresents an oxygen atom or the like; Rrepresents an acryloyloxyalkyl group or the like; p represents a number satisfying 0≤p≤10; and a represents a number satisfying 1≤a≤3) in each molecule,(B) an organopolysiloxane resin that is composed of (a) a unit represented by formula (2) (wherein R-R, a and p are as defined above), (b) an RSiOunit (wherein each Rindependently represents a monovalent hydrocarbon group having 1-10 carbon atoms) and (c) an SiOunit, and wherein the molar ratio of the total of the unit (a) and the unit (b) to the unit (c) is within the range of 0.6-1.2:1 and(C) a photopolymerization initiator has a viscosity that is applicable to a stereolithography system such as lifting system and forms a cured product which has excellent physical properties of rubber.