Method of improving carbon black dispersion in rubber compositions
AssigneeBridgestone Corporation
InventorsGeorg G. A. Bohm, Anthony J. Ramic, James D. Ulmer, William L. Hergenrother, Christine M. Rademacher, David F. Lawson, Sunil B. Sarkar
Life of this patent
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Abstract
A method for forming a vulcanizable composition of matter, the method comprising providing a polymer cement or latex comprising at least one rubber, adding at least one processing aid to the cement or latex to form a modified rubber cement or latex, isolating the rubber and at least one processing aid to form a premix, and mixing the premix with carbon black.
Claims20
A method for forming a vulcanizable composition of matter, the method comprising:
- providing a polymer cement or latex comprising at least one rubber;
- adding at least one processing aid to the cement or latex to form a modified rubber cement or latex;
- isolating the rubber and at least one processing aid to form a premix;
- and
- mixing the premix with carbon black.
A tire tread prepared by a method comprising:
- preparing a vulcanizable composition of matter by providing a rubber cement or latex comprising at least one rubber, adding at least one processing aid to the rubber cement or latex to form a modified rubber cement or latex, isolating the rubber and at least one processing aid to form a premix, mixing the premix with carbon black;
- shaping the vulcanizable composition of matter into a green tire tread, and
- curing the tire tread.
A method for increasing the dispersion of carbon black within a carbon-black filled tire component, the method comprising:
- providing a rubber cement or latex comprising at least one rubber;
- adding at least one processing aid to the rubber cement or latex to form a modified rubber cement or latex;
- isolating the rubber and at least one processing aid from the solvent to form a premix;
- and
- mixing the premix with carbon black.
Dependencies are inferred from the claim text.