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. 20, 2023
Filed:
Dec. 22, 2020
Dow Silicones Corporation, Midland, MI (US);
Dow Global Technologies Llc, Midland, MI (US);
Nanguo Liu, Midland, MI (US);
Zachary Wenzlick, Midland, MI (US);
Brian Harkness, Midland, MI (US);
Jon Hannington, Midland, MI (US);
Scott Miller, Midland, MI (US);
Gerald Witucki, Midland, MI (US);
Brian Dorvel, Midland, MI (US);
DOW SILICONES CORPORATION, Midland, MI (US);
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Abstract
A foam stabilizing composition is disclosed. The composition comprises (A) a siloxane cationic surfactant comprising a cationic moiety having the formula Z-D-N(Y)(R), wherein Zis a siloxane moiety, Dis a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each Y has formula -D-NR+, where D is a divalent linking group and each Ris independently an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms. The composition also comprises (B) an organic cationic surfactant comprising a cationic moiety having the formula Z-D-N(Y)(R), wherein Zis an unsubstituted hydrocarbyl group, Dis a covalent bond or a divalent linking group, subscript b is 1 or 2, and R, Y, and subscript a, are defined above. An aqueous film-forming foam comprising the composition and method of using the same are also disclosed.