US 12,247,145 B2
Adjustable hybrid PSA/structural adhesive bonds by patterned surface-initiated cure
Alexander J. Kugel, Woodbury, MN (US); Matthew T. Holbrook, Little Canada, MN (US); Nicholas W. Lang, Minnetonka, MN (US); Dean A. Miner, Prescott, WI (US); Scott M. Spear, St. Paul, MN (US); Kristen L. Bellmer, Cottage Grove, MN (US); Benjamin J. Bending, St. Paul, MN (US); Vincent Jusuf, Minneapolis, MN (US); and Daniel M. Peppin, Minneapolis, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/802,826
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Mar. 4, 2021, PCT No. PCT/IB2021/051832
§ 371(c)(1), (2) Date Aug. 26, 2022,
PCT Pub. No. WO2021/176400, PCT Pub. Date Sep. 10, 2021.
Claims priority of provisional application 62/986,250, filed on Mar. 6, 2020.
Prior Publication US 2023/0407136 A1, Dec. 21, 2023
Int. Cl. B32B 3/10 (2006.01); C09J 5/02 (2006.01); C09J 5/06 (2006.01); C09J 7/10 (2018.01); C09J 7/35 (2018.01); C09J 7/38 (2018.01)
CPC C09J 5/02 (2013.01) [C09J 5/06 (2013.01); C09J 7/10 (2018.01); C09J 7/35 (2018.01); C09J 7/385 (2018.01); C09J 2301/302 (2020.08); C09J 2301/304 (2020.08); C09J 2301/414 (2020.08); C09J 2433/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An article comprising, in order:
a) a first adherend;
b) a first primer layer;
c) an adhesive layer;
d) optionally a second primer layer;
e) a second adherend;
wherein the first primer layer covers first portions of the first adherend, wherein the first primer layer does not cover second portions of the first adherend, wherein the adhesive layer comprises pressure sensitive adhesive domains comprising a first species comprising first unsaturated free-radically polymerizable groups in an uncured state, wherein second portions of the first adherend are directly bound to the adhesive layer, wherein the adhesive layer comprises structural adhesive domains comprising a polymer obtained by cure of the first species by polymerization of the first unsaturated free-radically polymerizable groups, and wherein structural adhesive domains of the adhesive layer are bound to first portions of the first adherend through the first primer layer.