US 11,697,714 B2
Polyorganosiloxane having poly(meth)acrylate groups and methods for the preparation and use thereof
Jodi Mecca, Midland, MI (US); Nanguo Liu, Midland, MI (US); Eric Joffre, Midland, MI (US); Randy Schmidt, Midland, MI (US); Beth Kelley, Midland, MI (US); Timothy Mitchell, Midland, MI (US); James Walker, Midland, MI (US); Wesley Sattler, Collegeville, PA (US); Bryan McCulloch, Collegeville, PA (US); and Tzu-Chi Kuo, Midland, MI (US)
Assigned to DOW SILICONES CORPORATION, Midland, MI (US); and DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US)
Appl. No. 17/299,537
Filed by Dow Silicones Corporation, Midland, MI (US); and Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Mar. 13, 2020, PCT No. PCT/US2020/022526
§ 371(c)(1), (2) Date Jun. 3, 2021,
PCT Pub. No. WO2020/186127, PCT Pub. Date Sep. 17, 2020.
Claims priority of provisional application 62/818,131, filed on Mar. 14, 2019.
Prior Publication US 2022/0056317 A1, Feb. 24, 2022
Int. Cl. C08G 77/442 (2006.01); C09J 183/10 (2006.01); C09J 7/38 (2018.01); C08G 77/08 (2006.01); C08G 77/12 (2006.01); C08G 77/20 (2006.01); C08G 77/00 (2006.01); C08F 230/08 (2006.01)
CPC C08G 77/442 (2013.01) [C08G 77/08 (2013.01); C08G 77/12 (2013.01); C08G 77/20 (2013.01); C09J 7/38 (2018.01); C09J 183/10 (2013.01); C08F 230/08 (2013.01); C08G 77/70 (2013.01); C09J 2301/302 (2020.08); C09J 2301/414 (2020.08); C09J 2453/00 (2013.01); C09J 2483/00 (2013.01)] 12 Claims
 
1. A polyorganosiloxane having both aliphatically unsaturated groups and poly(meth)acrylate groups, wherein the polyorganosiloxane comprises unit formula: [R3w(R5—S—R″)(OR4)(2-w)Si—O1/2]p[R3v(R5—S—R″)(OR4)(1-v)Si—O2/2]q[(R5—S—R″)Si—O3/2]k(R6R72SiO1/2)r(R72SiO2/2)s(R6R7SiO2/2)t(R73SiO1/2)u, where each subscript w is independently 0, 1, or 2, each subscript v is independently 0 or 1, each R3 is an independently selected monovalent hydrocarbon group; each R4 is an independently selected alkyl group; each R5 is an independently selected divalent hydrocarbon group, each R″ is independently a (meth)acrylate polymer or copolymer, each R6 is an independently selected aliphatically unsaturated monovalent hydrocarbon group, each R7 is an independently selected monovalent hydrocarbon group free of aliphatic unsaturation, subscript p≥0, subscript q≥0, subscript k≥0, a quantity (p+q+k) 1, subscript r≥0, subscript s≥0, subscript t≥0, subscript u≥0, a quantity (r+t) 1, and a quantity (p+q+k+r+s+t+u) is sufficient to provide a molecular weight of at least 50 kDa to the polyorganosiloxane.