US 12,203,011 B2
Two-component adhesive compositions, articles prepared with same and preparation methods thereof
Qingwei Meng, Shanghai (CN); Yu Chen, Shanghai (CN); Shaoguang Feng, Shanghai (CN); Huan Chen, Beijing (CN); and Xuemei Zhai, Shanghai (CN)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 17/598,989
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed May 15, 2019, PCT No. PCT/CN2019/087007
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/227962, PCT Pub. Date Nov. 19, 2020.
Prior Publication US 2022/0213363 A1, Jul. 7, 2022
Int. Cl. C09J 175/04 (2006.01); C08G 18/12 (2006.01); C08G 18/28 (2006.01); C08G 18/42 (2006.01); C08G 18/50 (2006.01); C08G 18/76 (2006.01); C08G 18/77 (2006.01)
CPC C09J 175/04 (2013.01) [C08G 18/12 (2013.01); C08G 18/289 (2013.01); C08G 18/42 (2013.01); C08G 18/5021 (2013.01); C08G 18/7664 (2013.01); C08G 18/771 (2013.01); C08G 2170/00 (2013.01); C09J 2301/30 (2020.08)] 6 Claims
 
1. A two-component adhesive composition, comprising
(A) an isocyanate component comprising one or more compounds having at least two isocyanate groups; and
(B) an isocyanate-reactive component comprising one or more compounds having at least two isocyanate-reactive groups,
wherein the two-component adhesive composition further comprises:
an polyether amine-epoxy silane adduct derived from the reaction between:
(i) at least one polyether amine represented by Formula I:

OG Complex Work Unit Chemistry
R1 being a poly(alkylene oxide) group comprising from 2 to 2,000 carbon atoms and terminated with an amino group, an C1-C6 alkyl or a hydrogen atom; and
R2 being selected from the group consisting of a poly(alkylene oxide) group comprising from 2 to 2,000 carbon atoms and terminated with an amino group, an C1-C6 alkyl or a hydrogen atom; hydrogen; C2-C12 alkyl group; amino substituted C2-C12 alkyl group; C6-C16 cycloalkyl group; amino substituted C6-C16 cycloalkyl group; C7-C16 aralkyl group; amino substituted C7-C16 aralkyl group; C6-C16 aryl group; and amino substituted C6-C16 aryl group;
(ii) at least one epoxy-silane compound represented by Formula II:
[A(C1-C10alkylene)]n(C1-C6alkoxy)4-nSi  Formula II
A being selected from the group consisting of glycidyl, glycidyloxy and epoxidized C4-C6 cycloalkyl,
n being an integer of 1, 2, 3 or 4; and
(iii) at least one cross-linker;
the content of the polyether amine-epoxy silane adduct being from 5 wt % to 35 wt %, based on a weight content of the isocyanate-reactive component (B).