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US 6,184,306 B2Granted
Asymmetrical siloxy compounds
AssigneeThe Goodyear Tire & Rubber Company
InventorsThierry Florent Edme Materne, Giorgio Agostini, Friedrich Visel, Martin Paul Cohen
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Abstract
The present invention relates to asymmetrical siloxy compounds of the formula wherein R1, R2 and R3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; R4 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; and n is an integer of from 1 to 8.
Claims12
A compound of the formula
- wherein R1, R2 and R3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms;
- R4 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms;
- and n is an integer of from 1 to 8.
A method of processing a silica-filled rubber composition which comprises mixing
- (i) 100 parts by weight of at least one elastomer containing olefinic unsaturation selected from conjugated diene homopolymers and copolymers and from copolymers of at least one conjugated diene and aromatic vinyl compound;
- (ii) 10 to 250 phr of particulate precipitated silica;
- (iii) 0.05 to 15 phr of an asymmetrical siloxy compound of the formula
- wherein R1, R2 and R3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms;
- R4 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms;
- and n is an integer of from 1 to 8.
3 more elements
Dependencies are inferred from the claim text.