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US 10,000,612 B2Granted
Methods of making an elastomer composite reinforced with silica and products containing same
AssigneeCabot Corporation
InventorsJincheng Xiong, Martin C. Green, William R. Williams, Dmitry Formitchev, Gerald D. Adler, Duane G. McDonald, Ron Grosz
Life of this patent
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Abstract
Methods to make a silica elastomer composite with a destabilized dispersion of silica are described, along with silica elastomer composites made from the methods. The advantages achieved with the methods are further described.
Claims29
A method of producing a silica elastomer composite, comprising:
- (a) providing a continuous flow under pressure of at least a first fluid comprising a destabilized dispersion of silica and a continuous flow of at least a second fluid comprising elastomer latex;
- (b) providing volumetric flow of the first fluid relative to that of the second fluid to yield a silica content of about 15 phr to about 180 phr in the silica elastomer composite;
- (c) combining the first fluid flow and the second fluid flow with a sufficiently energetic impact to distribute the silica within the elastomer latex to obtain a flow of a solid silica-containing continuous rubber phase or semi-solid silica-containing continuous rubber phase that is the silica elastomer composite.
Dependencies are inferred from the claim text.