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1. (WO2002031034) SILICA-REINFORCED RUBBER COMPOUNDED WITH AN ORGANOSILANE TETRASULFIDE SILICA COUPLING AGENT AT HIGH MIXING TEMPERATURE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/031034    International Application No.:    PCT/US2001/030935
Publication Date: 18.04.2002 International Filing Date: 03.10.2001
Chapter 2 Demand Filed:    07.05.2002    
IPC:
C08K 3/36 (2006.01), C08K 5/372 (2006.01)
Applicants: BRIDGESTONE CORPORATION [JP/JP]; 10-1, Kyobashi 1-chome Chuo-ku Tokyo 104 (JP) (For All Designated States Except US).
LIN, Chen-Chy [CN/US]; (US) (For US Only).
HERGENROTHER, William [US/US]; (US) (For US Only).
HILTON, Ashley [US/US]; (US) (For US Only)
Inventors: LIN, Chen-Chy; (US).
HERGENROTHER, William; (US).
HILTON, Ashley; (US)
Agent: HORNICKEL, John; Bridgestone/Firestone, Inc. I.P. Law Dept. 1200 Firestone Parkway Akron, OH 44317 (US).
ALBRECHT, Thomas; Kraus & Weisert Thomas-Wimmer-Ring 15 80539 Munich (DE)
Priority Data:
09/687,437 13.10.2000 US
Title (EN) SILICA-REINFORCED RUBBER COMPOUNDED WITH AN ORGANOSILANE TETRASULFIDE SILICA COUPLING AGENT AT HIGH MIXING TEMPERATURE
(FR) CAOUTCHOUC RENFORCE A LA SILICE MELANGE AVEC UN AGENT DE COULAGE ORGANOSILANE TETRASULFURE DE SILICE A UNE TEMPERATURE DE MELANGE ELEVEE
Abstract: front page image
(EN)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 °C to about 200 °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.
(FR)L'invention concerne des composés élastomères vulcanisables par souffre et des composants de pneumatiques dotés de propriétés de traction mécanique et viscoélastiques dynamiques améliorées. Ces composés sont obtenus par mélange avec de la silice à une température comprise entre 165 °C et environ 200 °C, en présence d'un agent de dispersion de silice et d'une très petite quantité (par exemple entre 0,01 % et environ 1 % en poids en fonction de la silice) d'un agent de couplage bis(trialkoxysilylorgano)tétrasulfuré de silice.
Designated States: CN, JP, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR).
Publication Language: English (EN)
Filing Language: English (EN)