Acido-basic properties of a system containing a polymer fragment obtained by oxidative cleavage of a carbon-carbon double bond of a diene rubber polymer and a functional molecule having in a structure thereof an alkoxysilyl group and at least one functional group selected from the group consisting of an aldehyde group and a carbonyl group are changed such that the system becomes basic when acidic, and becomes acidic when basic, thereby combining the polymer fragment with the functional molecule to form a modified diene rubber polymer having an alkoxysilyl group incorporated therein. A silane monomer comprising tetraalkoxysilane and/or alkyl trialkoxysilane is added to the system containing the modified diene rubber polymer, followed by condensation polymerization, thereby forming silica.
Rubber-silica composite and method for producing same, and rubber composition and pneumatic tire
2018-05-22
Patent
Electronic Resource
English
IPC: | C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
European Patent Office | 2015
|METHOD FOR PRODUCING TIRE RUBBER COMPOSITION, TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE
European Patent Office | 2023
|RUBBER COMPOSITION, METHOD FOR PRODUCING RUBBER COMPOSITION AND PNEUMATIC TIRE
European Patent Office | 2019
|METHOD FOR PRODUCING RUBBER COMPOSITION, RUBBER COMPOSITION AND PNEUMATIC TIRE
European Patent Office | 2016
|Modified natural rubber, method for producing same, rubber composition, and pneumatic tire
European Patent Office | 2015
|