US 12,128,125 B2
Polymer blend
Fanwen Zeng, Audubon, PA (US); Hilda G. Buss, Norristown, PA (US); Matthew Jeletic, Midland, MI (US); Xiaodong Lu, North Wales, PA (US); Tian Lan, Langhorne, PA (US); Isabelle Van Reeth, Incourt Walloon Brabant (BE); Helene Dihang, Taisnières-sur-Hon (FR); Marc Eeman, Sombreffe (BE); Bryan L. McCulloch, Olympia, WA (US); Jodi Mecca, Midland, MI (US); Ralph C. Even, Blue Bell, PA (US); Inna Shulman, Langhorne, PA (US); and Michaeleen L. Pacholski, Collegeville, PA (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US); Rohm and Haas Company, Collegeville, PA (US); and Dow Silicones Corporation, Midland, MI (US)
Appl. No. 17/287,394
Filed by Dow Global Technologies LLC, Midland, MI (US); Rohm and Haas Company, Collegeville, PA (US); and Dow Silicones Corporation, Midland, MI (US)
PCT Filed Dec. 3, 2019, PCT No. PCT/US2019/064157
§ 371(c)(1), (2) Date Apr. 21, 2021,
PCT Pub. No. WO2020/123197, PCT Pub. Date Jun. 18, 2020.
Claims priority of provisional application 62/778,531, filed on Dec. 12, 2018.
Prior Publication US 2021/0401725 A1, Dec. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/35 (2006.01); A61K 8/34 (2006.01); A61K 8/37 (2006.01); A61K 8/40 (2006.01); A61K 8/81 (2006.01); A61K 8/895 (2006.01); A61Q 17/04 (2006.01)
CPC A61K 8/895 (2013.01) [A61K 8/345 (2013.01); A61K 8/35 (2013.01); A61K 8/37 (2013.01); A61K 8/40 (2013.01); A61K 8/8147 (2013.01); A61Q 17/04 (2013.01); A61K 2800/544 (2013.01)] 10 Claims
 
1. A polymer blend, comprising:
(A) a multistage polymer, comprising:
(a) an acrylate rich stage comprising:
88 to 100 wt %, based on weight of the acrylate rich stage, of structural units of a monoethylenically unsaturated non-ionic, acrylate rich stage monomer, wherein the monoethylenically unsaturated non-ionic, acrylate rich stage monomer is selected from the group consisting of C1-22 alkyl (meth)acrylates and mixtures thereof;
0 to 10 wt %, based on weight of the acrylate rich stage, of structural units of a monoethylenically unsaturated carboxylic acid, acrylate rich stage monomer; and
0 to 2 wt %, based on weight of the acrylate rich stage, of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule; and
(b) a carbosiloxane rich stage, comprising:
0 to 90 wt %, based on weight of the carbosiloxane rich stage, of structural units of a vinyl (A) monomer; and
10 to 100 wt %, based on weight of the carbosiloxane rich stage, of structural units of a carbosiloxane monomer of formula (I)

OG Complex Work Unit Chemistry
 wherein a is 0 to 3; wherein dis 0 or 1; wherein each R1 is independently selected from the group consisting of a hydrogen, a C1-10 alkyl group and an aryl group; wherein each R2 is independently selected from the group consisting of a hydrogen and a C1-10 alkyl group; wherein each R8 is a —O—Si(CH3)2—O—Si(CH3)3 group; wherein Y is selected from the group consisting of formula (II), (III) and (IV)

OG Complex Work Unit Chemistry
 wherein each R4 and R6 are independently selected from the group consisting of a hydrogen and a methyl group; wherein each R3 and R5 are independently a C1-10 alkylene group; wherein each R7 is independently a C1-10 alkyl group; wherein b is 0 to 4 and wherein c is 0 or 1; and
(B) a silicone-grafted vinyl copolymer, wherein the silicone-grafted vinyl copolymer, comprises:
25 to 95 wt %, based on weight of the silicone-grafted vinyl copolymer, of structural units of a vinyl (B) monomer; and
5 to 75 wt %, based on weight of the silicone-grafted vinyl copolymer, of structural units of a carbosiloxane dendrimer of formula (V)

OG Complex Work Unit Chemistry
 wherein each R9 is independently selected from the group consisting of a C1-10 alkyl group and an aryl group; wherein each X is a silylalkyl group of formula (VI)

OG Complex Work Unit Chemistry
 wherein R10 is a C2-10 alkylene group; wherein each R11 is independently a C1-10 alkyl group; wherein each Z is independently selected from the group consisting of a hydrogen, a C1-10 alkyl group, an aryl group and a silylalkyl group of formula (VI); wherein e is 0 to 3; wherein A is selected from the group consisting of formula (VII), (VIII) and (IX)

OG Complex Work Unit Chemistry
wherein each R12 and R14 are independently a hydrogen or a methyl group; wherein each R13 and R16 are independently a C1-10 alkylene group; wherein each R15 is independently a C1-10 alkyl group; wherein f is 0 to 4 and wherein g is 0 or 1.