	US 12,006,451 B2
	Two-component solvent-less adhesive composition
Rui Shi, Shanghai (CN); Zhaohui Qu, Shanghai (CN); and Yinzhong Guo, Lake Jackson, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
Appl. No. 17/414,584
Filed by Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
PCT Filed Dec. 21, 2018, PCT No. PCT/CN2018/122618 § 371(c)(1), (2) Date Jun. 16, 2021, PCT Pub. No. WO2020/124542, PCT Pub. Date Jun. 25, 2020.
Prior Publication US 2022/0056324 A1, Feb. 24, 2022
Int. Cl. B32B 41/00 (2006.01); C08G 18/12 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); C09J 175/06 (2006.01); C09J 175/08 (2006.01)

CPC C09J 175/06 (2013.01) [C08G 18/12 (2013.01); C08G 18/4018 (2013.01); C08G 18/4238 (2013.01); C08G 18/4825 (2013.01); C08G 18/4829 (2013.01); C08G 18/7671 (2013.01); C09J 175/08 (2013.01); C09J 2301/12 (2020.08); C09J 2301/30 (2020.08); C09J 2400/163 (2013.01); C09J 2423/046 (2013.01); C09J 2475/00 (2013.01)]

16 Claims

1. A two-component solvent-less adhesive composition comprising the reaction product of:

(A) an isocyanate component comprising the reaction product of

(i) an isocyanate monomer;

(ii) a first dimer acid polyester polyol;

(B) a polyol component comprising

(i) a second dimer acid polyester polyol; and

(ii) optionally, a polyol selected from the group consisting of a polyether polyol, a polyester polyol, and combinations thereof;

the two-component solvent-less adhesive composition comprising from 15 wt % to 45 wt % units derived from dimer acid, based on the total weight of the two-component solvent-less adhesive composition.