US 12,286,572 B2
Adhesive primers and articles including the same
Kiu-Yuen Tse, Woodbury, MN (US); and David T. Amos, St. Paul, MN (US)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/783,593
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Dec. 17, 2020, PCT No. PCT/IB2020/062112
§ 371(c)(1), (2) Date Jun. 8, 2022,
PCT Pub. No. WO2021/124200, PCT Pub. Date Jun. 24, 2021.
Claims priority of provisional application 62/951,570, filed on Dec. 20, 2019.
Prior Publication US 2022/0372345 A1, Nov. 24, 2022
Int. Cl. C09J 7/50 (2018.01); A61L 24/04 (2006.01); C09J 7/21 (2018.01); C09J 7/24 (2018.01); C09J 7/25 (2018.01); C09J 7/26 (2018.01); C09J 7/30 (2018.01)
CPC C09J 7/50 (2018.01) [A61L 24/046 (2013.01); C09J 7/21 (2018.01); C09J 7/243 (2018.01); C09J 7/255 (2018.01); C09J 7/26 (2018.01); C09J 7/30 (2018.01); C09J 2301/414 (2020.08); C09J 2301/416 (2020.08); C09J 2400/243 (2013.01); C09J 2400/263 (2013.01); C09J 2423/046 (2013.01); C09J 2467/006 (2013.01); C09J 2475/003 (2013.01); C09J 2475/006 (2013.01); C09J 2483/00 (2013.01); C09J 2483/003 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An adhesive article comprising:
a substrate;
a primer layer disposed on the substrate; and
a silicone adhesive disposed on the primer layer,
wherein the primer layer comprises a polymer including a polyorganosiloxane pendant group P represented by the formula

OG Complex Work Unit Chemistry
wherein
each R1 is independently an alkyl, haloalkyl, arylalkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo,
R2 is an alkyl or an alkenyl group;
R3 is an alkylene or an arylalkylene group; and
n is an integer in the range of 1 to 20,
wherein the polymer is a polyurethane polymer comprising a first monomer represented by the formula

OG Complex Work Unit Chemistry
a second monomer represented by the formula

OG Complex Work Unit Chemistry
and;
a third monomer represented by the formula

OG Complex Work Unit Chemistry
wherein
R10 is pendant group P.