US 12,285,923 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, Canton, OH (US); and Ross W. Widenor, Munroe Falls, OH (US)
Assigned to Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
Filed by Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
Filed on Oct. 23, 2023, as Appl. No. 18/492,349.
Application 18/492,349 is a division of application No. 16/466,874, granted, now 11,794,430, previously published as PCT/US2017/066242, filed on Dec. 14, 2017.
Claims priority of provisional application 62/434,591, filed on Dec. 15, 2016.
Prior Publication US 2024/0100792 A1, Mar. 28, 2024
Int. Cl. B29D 30/00 (2006.01); B29D 30/06 (2006.01); B60C 1/00 (2006.01); C08G 18/83 (2006.01); C08G 65/336 (2006.01); C08K 3/011 (2018.01); 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)
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 5/0016 (2013.01); C08K 5/005 (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)] 19 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 the lower surface of the cured inner liner is essentially free of 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 75% by weight, based upon the total weight of the composition used to treat the lower surface of the inner liner,
ii. at least one plasticizer in an amount of about 5 to about 35% by weight, based upon the total weight of the composition used to treat the lower surface of the inner liner,
iii. at least one tackifier in an amount of about 5 to about 25% by weight, based upon the total weight of the composition used to treat the lower surface of the inner liner,
iv. at least one adhesion promoter in an amount of about 1 to about 10% by weight, based upon the total weight of the composition used to treat the lower surface of the inner liner,
v. at least one moisture scavenger in an amount of about 0.5 to about 5% by weight, based upon the total weight of the composition used to treat the lower surface of the inner liner,
vi. at least one catalyst in an amount of about 0.1 to about 5% by weight, based upon the total weight of the composition used to treat the lower surface of the inner liner,
vii. optionally at least one antioxidant, and
viii. no more than 10% by weight of filler, based upon the total weight of the 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.