SILICA-REINFORCED RUBBER COMPOUNDED WITH AN ORGANOSILANE TETRASULFIDE SILICA COUPLING AGENT AT HIGH MIXING TEMPERATURE

Title:

SILICA-REINFORCED RUBBER COMPOUNDED WITH AN ORGANOSILANE TETRASULFIDE SILICA COUPLING AGENT AT HIGH MIXING TEMPERATURE

Document Type and Number:

WIPO Patent Application WO2002031034

Kind Code:

A3

Abstract:

Sulfur-vulcanizable elastomeric compounds and pneumatic tire components having improved tensile mechanical and dynamic viscoelastic properties are produced by compounding polymers with silica at a temperature of 165 DEG C to about 200 DEG C, in the presence of a silica dispersing agent, and a very small amount e.g. , about 0.01 % to about 1 % by weight based on the silica) of a bis(trialkoxysilylorgano) tetrasulfide silica coupling agent.

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Inventors:

LIN CHEN-CHY (US)
HERGENROTHER WILLIAM (US)
HILTON ASHLEY (US)

Application Number:

PCT/US2001/030935

Publication Date:

August 22, 2002

Filing Date:

October 03, 2001

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
LIN CHEN-CHY (US)
HERGENROTHER WILLIAM (US)
HILTON ASHLEY (US)

International Classes:

C08J3/20; C08K3/04; C08K3/06; C08K3/36; C08K5/103; B60C1/00; C08K5/372; C08K5/5415; C08K5/548; C08L9/00; C08L25/06; C08L101/00; (IPC1-7): C08K13/02; C08L21/00

Foreign References:

EP0933391A1	1999-08-04
EP0731134A1	1996-09-11
EP0791623A1	1997-08-27
EP0805179A2	1997-11-05

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