	US 12,240,981 B2
	Rubber tire compound containing IPN-promoting resin
Paul Harry Sandstrom, Cuyahoga Falls, OH (US); Kelsey Elizabeth Cantwell, Akron, OH (US); Seth Cody Ensign, Springfield, IL (US); and Nihat Ali Isitman, Hudson, OH (US)
Assigned to THE GOODYEAR TIRE & RUBBER COMPANY, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Mar. 26, 2024, as Appl. No. 18/617,131.
Application 18/617,131 is a continuation of application No. 17/381,305, filed on Jul. 21, 2021, granted, now 11,970,618.
Prior Publication US 2024/0228756 A1, Jul. 11, 2024
Int. Cl. C08L 9/06 (2006.01); B60C 1/00 (2006.01); C08F 136/08 (2006.01); C08F 212/08 (2006.01); C08F 222/06 (2006.01); C08J 3/00 (2006.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C08K 5/548 (2006.01); C08L 7/00 (2006.01)

CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); C08F 136/08 (2013.01); C08F 212/08 (2013.01); C08F 222/06 (2013.01); C08J 3/005 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 5/548 (2013.01); C08L 7/00 (2013.01); C08K 2003/2296 (2013.01); C08L 2205/03 (2013.01); C08L 2205/04 (2013.01)]

10 Claims

1. A method of preparing a rubber composition, based on 100 parts per weight (phr) of elastomer, comprising:

(A) mixing in at least one non-productive mixing step 100 phr of diene-based elastomers and a filler in the absence of sulfur curative and zinc oxide; followed by

(B) in a productive mixing step, mix into the product of (A) an olefin-maleic anhydride copolymer resin comprising side chain functional groups along the resin backbone and characterized by an MA:olefin mole ratio between from about 0.20 and about 8 and an average molecular weight between from about 5 and about 30,000 g/mol.