Dow Silicones Corporation

Dow Global Technolgoies LLC

Rohm and Haas Company

Ruihua Lu

Zhihua Liu

Yan Zhou

Jiayin Zhu

Jingui Jiang

Wenjie Chen

Yunlong Guo

Qing Cao

Chengrong Zhu

Rongrong Fan

Hongyu Chen

Li Ding

Zhaohui Qu

Cheng Shen

Fuming Huang

Bochi Xu

Wenfei Li

Qiangqiang Yan

A method for making a solventless polyorganosiloxane pellet is disclosed. The pellet is comprised of a polyorganosilicate resin and a polyorganosiloxane gum. The pellet is useful for making silicone pressure sensitive adhesive compositions.

Solventless polyorganosiloxane pellets and processes for the preparation and use thereof

Provided herein is a water-based hybrid pressure sensitive adhesive composition and a method of producing the same. The composition comprises: (A) 100 parts by mass of a silicone pressure sensitive adhesive; (B) 5 to 80 parts by mass of an acrylic pressure sensitive adhesive; (C) water in a sufficient amount to emulsify or disperse components (A) and (B) in component (C); and (D) 0.1 to 10 parts by mass of an amino-functional alkoxysilane compound, a hydrolysate thereof, or a hydrolyzed condensate thereof. Components (A) and (B) are emulsified or dispersed in component (C). The composition can be cured to form a pressure sensitive adhesive exhibiting good peel adhesion and low silicone migration.

Water-based hybrid pressure sensitive adhesive composition and method of producing the same

A silicone pressure sensitive adhesive composition is curable to form a silicone pressure sensitive adhesive. The silicone pressure sensitive adhesive composition can be coated on a substrate and cured to form a protective film. The protective film can be adhered to an anti-fingerprint coating on display glass, such as cover glass for a smartphone.

Silicone pressure sensitive adhesive composition and methods for the preparation and use thereof

An aqueous dispersion of a silicone pressure sensitive adhesive base can be combined with a curing agent and cured to form a silicone pressure sensitive adhesive. The aqueous dispersion of the silicone pressure sensitive adhesive base includes a bis-hydroxyl-terminated polydiorganosiloxane; a polyorganosilicate resin; cumene; a surfactant; and water. A curing agent such as a peroxide compound or an aminosilane may be combined with the aqueous disperison of the silicone pressure sensitive adhesive base to form a silicone pressure sensitive adhesive composition. A pressure sensitive adhesive article may be formed by a method including coating a surface of a substrate with the silicone pressure sensitive adhesive composition, removing water, and curing the silicon pressure sensitive adhesive composition to form a silicone pressure sensitive adhesive on the surface of the substrate.

Aqueous dispersion of a silicone pressure sensitive adhesive base and methods for preparation and use of the dispersion

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Shanghai, China

Ruihua Lu