Invention Grant
- Patent Title: Cationic surfactant foam stabilizing composition
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Application No.: US17789175Application Date: 2020-12-22
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Publication No.: US11679292B2Publication Date: 2023-06-20
- Inventor: Nanguo Liu , Zachary Wenzlick , Brian Harkness , Jon Hannington , Scott Miller , Gerald Witucki , Brian Dorvel
- Applicant: DOW SILICONES CORPORATION , DOW GLOBAL TECHNOLOGIES LLC
- Applicant Address: US MI Midland
- Assignee: DOW SILICONES CORPORATION,DOW GLOBAL TECHNOLOGIES LLC
- Current Assignee: DOW SILICONES CORPORATION,DOW GLOBAL TECHNOLOGIES LLC
- Current Assignee Address: US MI Midland; US MI Midland
- Agency: Warner Norcross + Judd LLP
- International Application: PCT/US2020/066605 2020.12.22
- International Announcement: WO2021/138147A 2021.07.08
- Date entered country: 2022-06-25
- Main IPC: A62D1/02
- IPC: A62D1/02 ; A62C99/00

Abstract:
A foam stabilizing composition is disclosed. The composition comprises (A) a siloxane cationic surfactant comprising a cationic moiety having the formula Z1-D1-N(Y)a(R)2−a, wherein Z1 is a siloxane moiety, D1 is 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-NR13+, where D is a divalent linking group and each R1 is 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 Z2-D2-N(Y)b(R)2−b, wherein Z2 is an unsubstituted hydrocarbyl group, D2 is 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.
Public/Granted literature
- US20230095031A1 CATIONIC SURFACTANT FOAM STABILIZING COMPOSITION Public/Granted day:2023-03-30
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