US 12,404,427 B2
Adhesive tapes and methods of use in construction
James A. Bergman, St. Paul, MN (US); Kevin M. Lewandowski, Inver Grove Heights, MN (US); Jeremy P. Gundale, Woodbury, MN (US); Thu-Van T. Tran, Maplewood, MN (US); and Jenna L. Richardson, St. Paul, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/636,443
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Aug. 14, 2020, PCT No. PCT/IB2020/057690
§ 371(c)(1), (2) Date Feb. 18, 2022,
PCT Pub. No. WO2021/033111, PCT Pub. Date Feb. 25, 2021.
Claims priority of provisional application 62/888,818, filed on Aug. 19, 2019.
Prior Publication US 2022/0298390 A1, Sep. 22, 2022
Int. Cl. C09J 7/29 (2018.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); C09J 7/38 (2018.01); E04B 1/68 (2006.01)
CPC C09J 7/385 (2018.01) [B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/32 (2013.01); C09J 7/29 (2018.01); E04B 1/6803 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2274/00 (2013.01); B32B 2307/732 (2013.01); B32B 2405/00 (2013.01); C09J 2203/346 (2020.08); Y10T 428/2848 (2015.01); Y10T 428/2891 (2015.01)] 20 Claims
OG exemplary drawing
 
1. An adhesive tape comprising an acrylic pressure sensitive adhesive layer disposed on a multilayer backing, wherein:
the acrylic pressure sensitive adhesive layer comprises a polymer comprising interpolymerized monomers comprising:
80 to 99.9 parts by weight of one or more (meth)acrylic acid ester monomers of Formula (I):
RO—C(O)—C(R3)═CH2
wherein:
R is a branched alkyl having 10 to 18 carbon atoms; and
R3 is H or CH3;
0.1 to 20 parts by weight of one or more acid-functional, ethylenically unsaturated monomers; and
0 to 10 parts by weight of one or more non-acid functional, ethylenically unsaturated polar monomers; and
the multilayer backing comprises:
a core layer, having a first major surface opposite a second major surface, and having a core layer thickness of 10.0 to 4,500 microns; and
a skin layer having a different composition from the core layer, having a skin layer thickness of 3.0 to 1,500 microns but not more than 50% of the core layer thickness, bonded directly to the first major surface of the core layer;
wherein the acrylic pressure sensitive adhesive layer is disposed on the second major surface of the core layer, and wherein the adhesive tape has a peel adhesion from a resin-impregnated kraft paper overlaid oriented strand board, after being adhered thereto for 24 hours at −10° F. (−23° C.), of at least 14 oz/in (15.3 N/dm) at a constant peel rate of 12 in/min (30.48 cm/min).