Rubber composition

• Main Authors: NISHI ISAO, TAKANO TETSUO, DOBASHI MASAAKI, NOHARA DAISUKE
• Format: Patent
• Language: English
• Published: 12.01.2005
• Edition: 7
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention provides a rubber composition comprising (A) a natural rubber and/or a diene base synthetic rubber, (B) an inorganic filler and (C) a compound having in the same molecule, at least one group A reacting with the rubber (A) and two or more groups B adsorbing on the inorganic filler (B), wherein the reacting group A is a non-aromatic conjugated double bond group or a double bond group adjacent to a group selected from a carbonyl group, a carboxyl group, an oxycarbonyl group and an amide group, wherein the adsorbing group B is a carboxyl group, wherein the reacting group A is a group derived from an unsaturated carboxylic acid selected from maleic acid, fumaric acid, itaconic acid, acrylic acid, methacrylic acid and sorbic acid, wherein the compound (C) is a compound represented by the following Formula (III): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ HOOC-CH=CH-COO-R 8 -CO-CH=CH-COOH€ƒ€ƒ€ƒ€ƒ€ƒ(III) wherein R 8 is a group represented by -CH 2 CH(OH)CH 2 O- or a group represented by -(R 11 O-COR 12 -COO-) t R 11 O-; R 11 is an alkylene group having 2 to 18 carbon atoms, an alkenylene group having 2 to 18 carbon atoms, a divalent aromatic hydrocarbon group or -(R 13 O) u R 13 - (R 13 is an alkylene group having 2 to 4 carbon atoms, and u is a number of 1 to 30 showing an average addition mole number of an oxyalkylene group); R 12 is an alkylene group having 2 to 18 carbon atoms, an alkenylene group having 2 to 18 carbon atoms or a divalent aromatic hydrocarbon group; and t is a number of 1 to 30 in terms of an average value.