	US 11,794,430 B2
	Methods for producing polymer-containing coatings upon cured inner liners, methods for producing tires containing such inner liners, and tires containing such inner liners
Kung-Ching Liao, Copley, OH (US); Jared J. Griebel, Orange Village, OH (US); Brian S. Alexander, Westfield, IN (US); Jiansheng Tang, Carmel, IN (US); Bradley S. Plotner, Akron, OH (US); and Ross W. Widenor, Munroe Falls, OH (US)
Assigned to Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
Appl. No. 16/466,874
Filed by Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
PCT Filed Dec. 14, 2017, PCT No. PCT/US2017/066242 § 371(c)(1), (2) Date Jun. 5, 2019, PCT Pub. No. WO2018/112117, PCT Pub. Date Jun. 21, 2018.
Claims priority of provisional application 62/434,591, filed on Dec. 15, 2016.
Prior Publication US 2020/0061944 A1, Feb. 27, 2020
Int. Cl. B29D 30/00 (2006.01); C08K 3/011 (2018.01); B60C 1/00 (2006.01); C08G 18/83 (2006.01); C08G 65/336 (2006.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C08K 5/00 (2006.01); C08K 5/105 (2006.01); C08K 5/13 (2006.01); C08K 5/17 (2006.01); C08L 23/22 (2006.01); C08L 43/04 (2006.01); C09D 171/02 (2006.01); C09D 175/04 (2006.01); B29D 30/06 (2006.01)

CPC B29D 30/0061 (2013.01) [B60C 1/0008 (2013.01); C08G 18/837 (2013.01); C08G 65/336 (2013.01); C08K 3/011 (2018.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 5/005 (2013.01); C08K 5/0016 (2013.01); C08K 5/105 (2013.01); C08K 5/13 (2013.01); C08K 5/17 (2013.01); C08L 23/22 (2013.01); C08L 43/04 (2013.01); C09D 171/02 (2013.01); C09D 175/04 (2013.01); B29D 2030/0686 (2013.01); C08K 2003/2206 (2013.01)]

18 Claims

1. A method for producing a polymer-containing coating upon a cured inner liner for a tire comprising:

a. providing a cured inner liner comprising rubber, a majority of which comprises butyl rubber, optionally halogenated, wherein the cured inner liner has an upper and a lower surface and wherein the lower surface of the cured inner liner comprises a release treatment comprising polysiloxane moieties,

b. treating the lower surface of the cured inner liner with a coating composition comprising:

i. a silyl-terminated polymer in an amount of 40 to about 75% by weight, based upon the total weight of the coating composition used to treat the lower surface of the inner liner,

ii. optionally at least one plasticizer,

iii. at least one tackifier,

iv. at least one adhesion promoter,

v. optionally at least one moisture scavenger,

vi. at least one catalyst,

vii. optionally at least one antioxidant, and

viii. no more than 10% by weight of filler, based upon the total weight of the coating composition used to treat the lower surface of the inner liner,

thereby creating a polymer-containing coating upon the treated surface of the cured inner liner.