US 11,781,050 B2
Aqueous dispersion of a silicone pressure sensitive adhesive base and methods for preparation and use of the dispersion
Qiangqiang Yan, Shanghai (CN); Yunlong Guo, Shanghai (CN); Wenjie Chen, Shanghai (CN); Li Ding, Shanghai (CN); Hongyu Chen, Shanghai (CN); Cheng Shen, Shanghai (CN); Ruihua Lu, Shanghai (CN); Yan Zhou, Shanghai (CN); and Zhihua Liu, Shanghai (CN)
Assigned to DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US); and Dow Silicones Corporation, Midland, MI (US)
Appl. No. 17/793,786
Filed by Dow Global Technologies LLC, Midland, MI (US); and Dow Silicones Corporation, Midland, MI (US)
PCT Filed Jul. 21, 2021, PCT No. PCT/CN2021/107678
§ 371(c)(1), (2) Date Jul. 19, 2022,
PCT Pub. No. WO2023/000218, PCT Pub. Date Jan. 26, 2023.
Prior Publication US 2023/0193096 A1, Jun. 22, 2023
Int. Cl. C09J 183/06 (2006.01); C09J 5/00 (2006.01); C09J 11/06 (2006.01); C08G 77/02 (2006.01); C08G 77/16 (2006.01)
CPC C09J 183/06 (2013.01) [C09J 5/00 (2013.01); C09J 11/06 (2013.01); C08G 77/02 (2013.01); C08G 77/16 (2013.01); C09J 2483/00 (2013.01)] 15 Claims
 
1. An aqueous dispersion of a silicone pressure sensitive adhesive base, where said dispersion comprises starting materials (A) to (E), where
starting material (A) is a bis-hydroxyl-terminated polydiorganosiloxane;
starting material (B) is a polyorganosilicate resin;
starting material (C) is cumene, in an amount of 1 weight part to 25 weight parts, per 100 weight parts of starting materials (A), (B), (C), and (D) combined;
starting material (D) is a surfactant in an amount of 0.1 weight part to 20 weight parts, per 100 weight parts of starting materials (A), (B), (C), and (D) combined, where the surfactant comprises
(D1) an alkyl polyglycoside surfactant and
optionally (D2) a cosurfactant; and
starting material (E) is water.