US 11,732,158 B2
Adhesive compositions
Lynnette Hurlburt, Manchester, CT (US); Andrew D. Messana, Newington, CT (US); and Kevin J. Welch, Wallingford, CT (US)
Assigned to Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed on Oct. 14, 2019, as Appl. No. 16/601,005.
Application 16/601,005 is a continuation of application No. PCT/US2018/028749, filed on Apr. 21, 2018.
Claims priority of provisional application 62/488,365, filed on Apr. 21, 2017.
Prior Publication US 2020/0040223 A1, Feb. 6, 2020
Int. Cl. C09J 4/06 (2006.01); C08F 265/06 (2006.01); C09J 5/00 (2006.01); C09J 133/12 (2006.01); C09J 151/00 (2006.01); C09J 163/00 (2006.01)
CPC C09J 4/06 (2013.01) [C08F 265/06 (2013.01); C09J 5/00 (2013.01); C09J 133/12 (2013.01); C09J 151/003 (2013.01); C09J 163/00 (2013.01)] 14 Claims
 
1. An adhesive composition comprising:
(a) Part A comprising:
(i) a (meth)acrylic component;
(ii) a cure accelerator represented by structure A

OG Complex Work Unit Chemistry
wherein X is H C1-20 alkyl, C2-20 alkenyl, or C7-20 alkaryl, functionalized by one or more groups selected from —OH, —NH2 or
—SH, or X and Y taken together form a carbocyclic ring having from 5-7 ring atoms; Z is O, S, or NX′, where X′ is H, C1-20 alkyl, C2-20 alkenyl, or C7-20 alkaryl, any of the latter three of which may be interrupted by one or more hetero atoms or functionalized by one or more groups selected from —OH, —NH2 or
—SH; R is optional but when present may occur up to 3 times on the aromatic ring and when present is C1-20 alkyl, C2-20 alkenyl, or C7-20 alkaryl, any of the latter three of which may be interrupted by one or more hetero atoms or functionalized by one or more groups selected from —OH, —NH2 or —SH; and n is 0 or 1; and z is 1-3;
(iii) a thermoplastic elastomer; and
(iv) a reactive acid/ester component; and
(b) Part B comprising:
(i) an epoxy resin component;
(ii) an oxidant;
(iii) a plasticizer; and
(iv) optionally, a block copolymer.