Dow Global Technolgoies LLC

Dow Silicones Corporation

Brian Dorvel

Bharat Indu Chaudhary

Kalyan Sehanobish

Arkady L Krasovskiy

Nanguo Liu

Brian Harkness

Gerald Lawrence Witucki

Harpreet Singh

Hayley A Brown

Amira A Marine

Andrew T Heitsch

Zachary Wenzlick

Scott Miller

Viraj Shah

Jian Yang

Jon Hannington

Gerald Witucki

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.

Cationic surfactant foam stabilizing composition

Laminate film structures including an adhesive layer having gas and moisture barrier properties are disclosed. The disclosed laminate film structures comprise films bonded together with an adhesive composition, the adhesive composition having barrier properties, e.g., controlling oxygen and/or water vapor transmission rates. The disclosed laminate film structures comprise films made from polymers and/or metallized polymers whereby the weight, thickness, and/or number of film layers has been reduced by using a barrier adhesive in place of a standard adhesive while still achieving similar barrier properties. Methods for forming laminate structures having a desired barrier performance are also disclosed, the methods comprising determining the desired barrier performance of the laminate structure, selecting a barrier adhesive, selecting two or more film layers, including at least a first film layer and a second film layer, applying the barrier adhesive on a surface of the first film layer, and bringing a surface of the second film layer into contact with the barrier adhesive applied on the surface of the first film layer, thereby forming the laminate structure having a desired barrier performance.

Laminate film structures having barrier adhesive layer

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Midland, MI, United States of America

Brian Dorvel