US 11,814,555 B2
Hot melt adhesive compositions containing polyolefin-polydiorganosiloxane copolymers and methods for the preparation and use thereof
Steven Swier, Midland, MI (US); Glenn Gordon, Midland, MI (US); Zachary Kean, Bay City, MI (US); Michael Behr, Midland, MI (US); and John Bernard Horstman, Midland, MI (US)
Assigned to DOW SILICONES CORPORATION, Midland, MI (US); and Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 16/970,989
Filed by Dow Silicones Corporation, Midland, MI (US); and Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Feb. 22, 2019, PCT No. PCT/US2019/019079
§ 371(c)(1), (2) Date Aug. 19, 2020,
PCT Pub. No. WO2019/182719, PCT Pub. Date Sep. 26, 2019.
Claims priority of provisional application 62/644,855, filed on Mar. 19, 2018.
Claims priority of provisional application 62/644,838, filed on Mar. 19, 2018.
Prior Publication US 2020/0407600 A1, Dec. 31, 2020
Int. Cl. C09J 183/10 (2006.01); C08G 77/442 (2006.01); C09J 7/35 (2018.01); C08L 83/10 (2006.01); C09J 183/06 (2006.01); C08F 8/22 (2006.01); C08F 8/42 (2006.01)
CPC C09J 183/10 (2013.01) [C08G 77/442 (2013.01); C08L 83/10 (2013.01); C09J 7/35 (2018.01); C09J 183/06 (2013.01); C08F 8/22 (2013.01); C08F 8/42 (2013.01); C08L 2205/03 (2013.01); C08L 2312/08 (2013.01); C09J 2203/326 (2013.01); C09J 2423/04 (2013.01); C09J 2483/00 (2013.01)] 16 Claims
 
1. A hot melt adhesive composition comprising:
(A) a polyolefin-polydiorganosiloxane block copolymer, where the polyolefin-polydiorganosiloxane block copolymer comprises unit formula (I):

OG Complex Work Unit Chemistry
where each RL is an independently selected divalent hydrocarbyl group, each R1 is an independently selected a monovalent hydrocarbyl group, each R3 is independently selected from a hydrogen atom and a monovalent hydrocarbyl group free of terminal aliphatic unsaturation, each R5 is an independently selected hydrogen terminated polyolefin, each R6 is an independently selected divalent polyolefin, each subscript a is independently 1 or 2, each subscript b is independently 0 or a positive number; subscript w is 0 to 2, subscript x is 0 or a positive number, subscript y is 0 or a positive number, subscript z is 0 to 2, a quantity (w+y)≥1, a quantity (x+z)≥1, with the provisos that when subscript w=0, subscript z is >0 and when subscript z=0, subscript w>0;
(B) a polydiorganosiloxane; and
(C) a polyorganosilicate resin.