US 12,281,245 B2
Moisture curable adhesive compositions
Bindu Krishnan, Lake Jackson, TX (US); Qiuyun Xu, Lake Jackson, TX (US); and Leonardo C. Lopez, Lake Jackson, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 17/420,191
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Jan. 3, 2020, PCT No. PCT/US2020/012182
§ 371(c)(1), (2) Date Jul. 1, 2021,
PCT Pub. No. WO2020/142688, PCT Pub. Date Jul. 9, 2020.
Claims priority of provisional application 62/788,360, filed on Jan. 4, 2019.
Prior Publication US 2022/0145147 A1, May 12, 2022
Int. Cl. C08G 18/12 (2006.01); C08G 18/24 (2006.01); C08G 18/30 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); C08K 3/26 (2006.01); C08K 3/36 (2006.01); C08K 5/101 (2006.01); C08K 5/5435 (2006.01); C08K 7/18 (2006.01); C09J 175/06 (2006.01); C09J 175/08 (2006.01)
CPC C09J 175/08 (2013.01) [C08G 18/12 (2013.01); C08G 18/244 (2013.01); C08G 18/307 (2013.01); C08G 18/42 (2013.01); C08G 18/48 (2013.01); C08G 18/7671 (2013.01); C08K 3/26 (2013.01); C08K 3/36 (2013.01); C08K 5/101 (2013.01); C08K 5/5435 (2013.01); C08K 7/18 (2013.01); C09J 175/06 (2013.01); C08G 2170/00 (2013.01); C08K 2003/265 (2013.01); C08K 2201/003 (2013.01); C08K 2201/011 (2013.01); C08K 2201/014 (2013.01); C08K 2201/019 (2013.01); C09J 2203/314 (2013.01); C09J 2301/30 (2020.08)] 16 Claims
OG exemplary drawing
 
1. An adhesive composition, comprising:
20 to 50 weight percent (wt. %) of a moisture curable polymer system;
30 to 60 wt. % of a calcium carbonate filler system, the calcium carbonate system having:
5 to 50 wt. % of a first spheroidal particle of calcium carbonate having an equivalent spherical mean diameter of 70 nanometer (nm) to 15 micrometer (μm); and
50 to 95 wt. % of a second spheroidal particle of calcium carbonate having an equivalent spherical mean diameter of greater than 15 μm to 200 μm,
wherein
the wt. % of the first spheroidal particle and the second spheroidal particle are based on the total weight of the calcium carbonate filler system;
5 to 15 wt. % of a seed oil based fatty acid ester; and
0.1 to 10 wt. % of a silane based adhesion promoter, wherein the wt. % of the moisture curable polymer system, the calcium carbonate filler system, the seed oil based fatty acid ester and the silane based adhesion promoter are based on the total weight of the adhesive composition.