	US 12,391,853 B2
	Adhesive formulations for roofing applications and related methods
Lingtao Yu, Summit, NJ (US); and Linlin Xing, Wayne, NJ (US)
Assigned to BMIC LLC, Dallas, TX (US)
Filed by BMIC LLC, Dallas, TX (US)
Filed on Jun. 8, 2023, as Appl. No. 18/331,815.
Application 18/331,815 is a continuation of application No. 17/955,388, filed on Sep. 28, 2022, granted, now 11,718,773.
Application 17/955,388 is a continuation of application No. 17/518,847, filed on Nov. 4, 2021, granted, now 11,472,988, issued on Oct. 18, 2022.
Claims priority of provisional application 63/109,716, filed on Nov. 4, 2020.
Prior Publication US 2023/0313005 A1, Oct. 5, 2023
Int. Cl. C09J 171/02 (2006.01); C08G 65/336 (2006.01); C08K 3/013 (2018.01); C08K 5/00 (2006.01); E04D 5/10 (2006.01)

CPC C09J 171/02 (2013.01) [C08G 65/336 (2013.01); C08K 3/013 (2018.01); C08K 5/0016 (2013.01); C08K 5/005 (2013.01); E04D 5/10 (2013.01); C08K 2201/019 (2013.01); C09J 2203/346 (2020.08); C09J 2423/166 (2013.01); C09J 2427/006 (2013.01)]

20 Claims

1. A roofing system comprising:

a roof substrate;

a roofing membrane; and

an adhesive formulation between the roof substrate and the roofing membrane,

wherein the adhesive formulation comprises;

a high viscosity silyl modified polymer having a viscosity of 20,000 cP or higher as measured according to ASTM D2196 using a Brookfield viscometer spindle number 6, at 20 rpm and 23° C.; and

a moisture scavenger,

wherein a weight ratio of the moisture scavenger to the high viscosity silyl modified polymer is 1:20 to 1:2;

wherein, when aged for 28 days at 50° C., the adhesive formulation has a test viscosity, as measured using a Brookfield viscometer spindle number 6 at 20 rpm and at 23° C., that is within +40% of the initial viscosity.