TH21482B - A rubber compound based on carbon black with silica fixed to its surface and diene polymer that is functionalized or modified with function chilanol. - Google Patents

Abstract

DC60 (20/07/41) A rubber compound with physical and hysterotic properties that make it suitable for the formation of Car tire The most noticeable are the exterior tires with reduced rolling resistance. Rubber compound Combines carbon black with silica fixed to its surface as the main part of the reinforcing filler and at least one diene polymer at the end of its chain with functional silanol. Or polysiloxane blocks with silanol ends or diene polymers that are modified along the chains of them by silanol functions. Rubber mixtures have physical and hysterotic properties that make them suitable for the formation of Car tire The most noticeable are the exterior tires with reduced rolling resistance. Rubber compound Combines carbon black with silica fixed to its surface as the main part of the reinforcing filler and at least one diene polymer at the end of its chain with functional silanol. Or polysiloxane blocks with silanol ends or diene polymers that are modified along the chains of them by silanol functions.

Claims (2)

1. A vulcanized rubber compound consisting of at least one diene polymer, and carbon black with silica fixed to its surface as a reinforcing filler. With a unique characteristic that diene The polymer is a diene polymer that also makes a functional group that is assembled at the end of its chain. Silanol function Or polysiloxane blocks with the end of the silanol Or diene polymer, modified by its chain by silanol Function 2. Mixture according to claim 1, with the characteristics that the apical polyiloxane block Silanols with the formula: (chemical formula) where R1 and R2 are the same or different. And represents the alkyl group with 1 to 8 carbon atoms, and X is an integer that ranges from 1 to 1500. 3. Mixture according to claim 2 with the characteristic R1 and R2 represent the L group. 1 to 5 carbon kills 4. Mixture according to claim 1 with the characteristics that diene polymer is butadiene-styrene copolymer. Or Butadiene-Styrene-Isoprene Copolymer 5. Mixture according to claim 4 with the characteristics that it still contains polybutadi. Eene and / or butadiene-isoprene copolymer and / or natural rubber 6. Mixture according to claim 1, with the characteristics that the amount of silica available. On the skin of Carbon black is from 0.1 to 50% by weight. 7. Mixture according to claim 6 has the characteristics that the amount of silica present on the surface of Carbon black is from 0.3 to 30% by weight. 8. Mixture according to claim 1 with the characteristic that it uses carbon black with fixed silica. With its surface in combination with other reinforcing fillers. 9. Tires that are composed of a vulcanized rubber compound. Containing at least One diene polymer And carbon black with silica fixed to its surface is a unique reinforcing filler that diene polymer is a functional diene polymer. Chanel that is at the very end. Of its chain with silanol function Or polysiloxane blocks with silanol ends or diene polymers that are modified by their chains. By Silanol Function 1 0. Tires according to Clause 9 with the characteristics that the above-mentioned mixtures are In the making of tires outside the car wheels 1 1. A tire that contains a rubber compound that can be vulcanized. That includes things One or more diene polymer And carbon black with silica fixed to its surface With the characteristics that Diene polymer is a diene polymer that provides a functional group that is assembled at the ends of a chain. With silanol function Or polysiloxane blocks with the end of the silanol Or diene polymer modified by its chain by silanols function 1. 2. Mixture according to claim 3, where R1 and R2 represent methyl group.