US 11,680,157 B2
Tire compositions and methods for making thereof
Jeremie Pichereau, Almere (NL); Wolfgang Pille-Wolf, Almere (NL); and Joshua Guilliams, Akron, OH (US)
Assigned to Kraton Corporation, Houston, TX (US)
Filed by Kraton Polymers LLC, Houston, TX (US)
Filed on Sep. 24, 2020, as Appl. No. 16/948,601.
Application 16/948,601 is a continuation in part of application No. 16/379,614, filed on Apr. 9, 2019, abandoned.
Claims priority of provisional application 62/655,554, filed on Apr. 10, 2018.
Prior Publication US 2021/0002461 A1, Jan. 7, 2021
Int. Cl. C08L 9/06 (2006.01); C08L 23/22 (2006.01); C08K 5/00 (2006.01); B60C 1/00 (2006.01); C08K 3/36 (2006.01); C08K 9/04 (2006.01); C01B 33/18 (2006.01); C08L 25/06 (2006.01); C08L 93/04 (2006.01); C08L 47/00 (2006.01)
CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); C08K 3/36 (2013.01); C08K 5/0016 (2013.01); C08K 9/04 (2013.01); C08L 23/22 (2013.01); C01B 33/18 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01); C08L 25/06 (2013.01); C08L 47/00 (2013.01); C08L 93/04 (2013.01); C08L 2205/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tire composition comprising a blend of:
a rubber component and based on 100 parts by weight (phr) of the rubber component;
from 50 phr to 200 phr of a resin-covered silica having an average primary particle size of <1000 μm,
from 50 phr to 200 phr of at least one filler; and
from 0 phr to 50 phr of a plasticizer;
wherein the resin-covered silica is formed in a process consisting essentially of coating finely divided silica core with a composition consisting essentially of a resin to coat at least a surface of the finely divided silica core forming the resin-covered silica as separate silica particles coated with the resin,
wherein the resin is not chemically bonded to the finely divided silica core, and
wherein the resin is selected from the group consisting of:
a coumarone-indene resin consisting of coumarone and indene repeat units,
a petroleum hydrocarbon resin, consisting of petroleum hydrocarbon repeat units, and optionally, aliphatic olefin units, phenol units, or cresol units;
a terpene-based resin selected from the group consisting of a polyterpene resin and a terpene phenol resin, wherein the polyterpene resin consists of terpene repeat units; and the terpene phenol resin consists of terpene and phenol repeat units;
a styrene-alpha-methylstyrene resins consisting of styrene and alpha-methylstyrene repeat units;
rosin derived resins and copolymers; and
and mixtures thereof.