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. 29, 2021
Filed:
Feb. 22, 2018
Eneos Corporation, Tokyo, JP;
Go Tatsumi, Tokyo, JP;
Akira Takagi, Tokyo, JP;
ENEOS CORPORATION, Tokyo, JP;
Abstract
A defoaming agent including a polymer, the polymer including: at least one first polymer chain including a polysiloxane structure represented by the following general formula (1); and at least one second polymer chain including a repeating unit represented by the following general formula (2) and bonded to the first polymer chain: wherein in the formula (1), repeating units may be in any order; each of Rand Ris independently a Corganic group comprising no fluorine atom; at least one of Rand Ris the organic group comprising no less than 3 fluorine atoms; m is an integer of no less than 1; and n+m is 5 to 2000, wherein in the formula (2), Xis a repeating unit obtainable by polymerization of an ethylenic unsaturated group; Yis a substituted or unsubstituted Chydrocarbyl group; and Zis a linking group linking Xand Y.