US 12,403,672 B2
Laminate, adhesive kit, laminated structure and production method thereof, and contact adhesive composition
Hidetoshi Abe, Yamagata Pref. (JP); Yuji Kashiwazaki, Yamagata Pref. (JP); and Mamoru Kanno, Yamagata Pref. (JP)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on Mar. 10, 2022, as Appl. No. 17/691,846.
Application 17/691,846 is a continuation of application No. 15/780,312, abandoned, previously published as PCT/US2016/064540, filed on Dec. 2, 2016.
Claims priority of provisional application 62/264,308, filed on Dec. 7, 2015.
Claims priority of application No. 2015-239631 (JP), filed on Dec. 8, 2015.
Prior Publication US 2022/0194053 A1, Jun. 23, 2022
Int. Cl. B32B 7/12 (2006.01); C09J 7/20 (2018.01); C09J 7/38 (2018.01); C09J 9/00 (2006.01); C09J 11/08 (2006.01); C09J 111/00 (2006.01); C09J 111/02 (2006.01); C09J 133/06 (2006.01); C09J 157/06 (2006.01)
CPC B32B 7/12 (2013.01) [C09J 7/20 (2018.01); C09J 7/381 (2018.01); C09J 9/00 (2013.01); C09J 11/08 (2013.01); C09J 111/00 (2013.01); C09J 111/02 (2013.01); C09J 133/06 (2013.01); C09J 157/06 (2013.01); C08K 2201/005 (2013.01); C08L 2205/22 (2013.01); C09J 2301/312 (2020.08); C09J 2301/408 (2020.08); C09J 2301/412 (2020.08); C09J 2411/00 (2013.01); C09J 2411/003 (2013.01); C09J 2433/00 (2013.01); C09J 2433/003 (2013.01); Y10T 428/254 (2015.01)] 14 Claims
 
1. An adhesive kit comprising:
a laminate configured to be adhered on a second contact adhesive layer covering an installation surface, the laminate comprising:
a substrate layer having a first major surface and a second major surface, and
a contact adhesive layer having a first major surface and a second major surface, the second major surface of the contact adhesive layer adhesively coupled to the first major surface of the substrate layer, the contact adhesive layer comprising a contact adhesive agent and microspheres having an average particle size of 0.5 μm or greater, the contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers, the contact adhesive layer comprising from 5 parts by mass to 500 parts by mass of the microspheres per 100 parts by mass of the contact adhesive agent, the first major surface of the contact adhesive layer comprising a plurality of protrusions corresponding to the locations of at least some of the microspheres; and
a primer agent comprising a second contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers, and the primer agent comprising second microspheres having an average particle size of 0.5 μm or greater, the second microspheres comprising a crosslinked resin and are nontacky, solid microspheres of acrylic polymer or urethane polymer.