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.

Date of Patent:
Dec. 13, 2022

Filed:

Sep. 21, 2018
Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Akitsugu Fujiwara, Annaka, JP;

Takafumi Sakamoto, Annaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 83/04 (2006.01); C09D 183/04 (2006.01); C09J 183/04 (2006.01); C08K 3/013 (2018.01); C08K 5/5419 (2006.01); C08K 5/544 (2006.01); C09D 7/00 (2018.01); C09D 7/80 (2018.01);
U.S. Cl.
CPC ...
C08L 83/04 (2013.01); C09D 183/04 (2013.01); C09J 183/04 (2013.01); C08L 2205/025 (2013.01); C08L 2205/05 (2013.01); C08L 2314/00 (2013.01); C08L 2666/54 (2013.01); C09D 7/00 (2013.01); C09D 7/80 (2018.01);
Abstract

Through the present invention, by undergoing a step in which a straight-chain diorganopolysiloxane having silanol groups at both terminal ends of the molecular chain thereof, a hydrolyzable silane and/or a partial hydrolysis condensate thereof having a hydrolyzable group capable of detaching a lactic acid ester, and an amino-group-containing hydrolyzable organosilane and/or a partial hydrolysis condensate thereof are pre-mixed/reacted in advance and silanol groups at both terminal ends of the molecular chain of a main agent (base polymer) are blocked by specific hydrolyzable silyl groups, it is possible to manufacture a lactic-acid-ester-type room-temperature-curable organopolysiloxane composition excellent in all characteristics including curability, adhesive properties, workability, and the like that were not attainable by the conventional lactic-acid-ester-type room-temperature curable (RTV) silicone rubber composition.


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