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US 11,999,830 B2Granted
Rubber compositions containing carbon black and whey protein
AssigneeBridgestone Americas Tire Operations, LLC
InventorsBenjamin C. Galizio, Amy M. Randall, Melissa M. Clark
Life of this patent
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Abstract
The present disclosure is directed to rubber compositions comprising at least one rubber, at least one reinforcing carbon black filler, and a whey protein component. The whey protein component is in an amount sufficient to provide about 0.1 to about 10 phr whey protein. The present disclosure is also directed to methods of preparing such rubber compositions and to tire components containing the rubber compositions disclosed herein.
Claims18
A tire rubber composition comprising:
- a. at least one rubber;
- b. at least one reinforcing carbon black filler in an amount of about 5 to about 150 phr;
- and
- c. a whey protein powder component in an amount sufficient to provide about 0.1 to about 10 phr whey protein,
- wherein the tire rubber composition does not include titanium dioxide or titanium oxide filler,
- wherein the whey protein meets each of the following:
- d. a majority of the protein chains in the whey protein have a molecular weight of greater than about 10 kDaltons;
- e. a majority of the proteins in the whey protein are a combination of alpha-lactalbumin and beta-lactoglobulin;
- and
- f. a degree of hydrolysis of less than about 50%, and
- wherein the at least one rubber is selected from the group consisting of synthetic polyisoprene rubber, natural rubber, styrene-butadiene rubber, styrene-isoprene rubber, butadiene-isoprene-rubber, styrene-isoprene-butadiene rubber, polybutadiene, neoprene, ethylene-propylene rubber, ethylene-propylene-diene rubber, acrylonitrile-butadiene rubber, silicone rubber, fluorinated rubber, polyacrylate rubber, ethylene acrylic rubber, ethylene vinyl acetate copolymer, epichlorohydrin rubbers, chlorinated polyethylene rubbers, chlorosulfonated polyethylene rubbers, nitrile rubber, halogenated nitrile rubber, hydrogenated nitrile rubber, tetrafluoroethylene-propylene rubber, and combinations thereof.
8 more elements
A cross-linked modified tire rubber composition comprising:
- a. at least one rubber;
- b. at least one reinforcing carbon black filler in an amount of about 5 to about 150 phr and silica filler in an amount such that the total amount of reinforcing filler is about 50 to about 200 phr;
- c. a whey protein powder component in an amount sufficient to provide about 0.1 to about 10 phr whey protein;
- and
- d. cure package,
- wherein the tire rubber composition does not include titanium dioxide or titanium oxide filler, and
- wherein the whey protein meets each of the following:
- d. a majority of the protein chains in the whey protein have a molecular weight of greater than about 10 kDaltons;
- e. a majority of the proteins in the whey protein are a combination of alpha-lactalbumin and beta-lactoglobulin;
- and
- f. a degree of hydrolysis of less than about 50%, and
- wherein the at least one rubber is selected from the group consisting of synthetic polyisoprene rubber, natural rubber, styrene-butadiene rubber, styrene-isoprene rubber, butadiene-isoprene-rubber, styrene-isoprene-butadiene rubber, polybutadiene, neoprene, ethylene-propylene rubber, ethylene-propylene-diene rubber, acrylonitrile-butadiene rubber, silicone rubber, fluorinated rubber, polyacrylate rubber, ethylene acrylic rubber, ethylene vinyl acetate copolymer, epichlorohydrin rubbers, chlorinated polyethylene rubbers, chlorosulfonated polyethylene rubbers, nitrile rubber, halogenated nitrile rubber, hydrogenated nitrile rubber, tetrafluoroethylene-propylene rubber, and combinations thereof.
9 more elements
Dependencies are inferred from the claim text.