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:
Mar. 25, 2025
Filed:
Dec. 23, 2021
Dow Toray Co., Ltd., Tokyo, JP;
Tsunehito Sugiura, Ichihara, JP;
Kazuhiko Kojima, Ichihara, JP;
Ikutaro Morikawa, Ichihara, JP;
Takeshi Yoshizawa, Ichihara, JP;
DOW TORAY CO., LTD., Tokyo, JP;
Abstract
Provided is a silicone anti-foaming agent composition that not only has superior anti-foaming speed but also in which anti-foaming performance is not reduced even when used repeatedly or over a long period. The composition comprises: a polyorganosiloxane polymer crosslinked product having a polyoxyalkylene group, which includes: moiety structure (I): -R-(RSiO)-R(where Rrepresents an alkylene group bonded to a silicon atom on the polysiloxane chain, Rrepresents a monovalent hydrocarbon group, and d is 200 to 1000); and moiety structure (II): —(CH)—O—(EO)-(PO)-(BO)-R(where a single bond on the left end is bonded to a silicon atom on the polysiloxane chain, Rrepresents a hydrogen atom, an alkyl group, an aryl group or an acyl group, e is 2 to 10, (x+y+z) is 40 to 100, x is 15 to 50, y is 15 to 50, and z is 0 to 50).