About 384 results
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https://drivepatents.com/patents/960966 · 6 May 2015
The present invention is a rubber composition for tire treads, of which the temperature of the peak position of the temperature curve of tanδ is -16.0°C or higher and -6.0°C or lower, tanδ at the peak position is larger than 1.13, tanδ at 0°C is 0.95...
https://drivepatents.com/patents/961196 · 29 Apr 2015
A tread for a pneumatic tire is provided. The tread (100) comprises a tread base layer (140) comprising a tread base compound, a first tread cap layer (110) comprising a first tread cap layer compound and located radially outside of the tread base layer (1...
https://drivepatents.com/patents/961605 · 15 Apr 2015
A functionalized elastomer comprising the reaction product of (1) a living anionic elastomeric polymer comprising units derived from divinylbenzene and a monomer comprising isoprene; and (2) a polymerization terminator of formula: Q-(CH)Si(OR)R3-Y , is dis...
https://drivepatents.com/patents/961585 · 15 Apr 2015
A rubber composition is disclosed comprising 2 phr to 45 phr of a trans-1,4-isoprene-butadiene copolymer which has from 4 weight percent to 16 weight percent 1,3-butadiene repeat units and from 84 weight percent to 96 weight percent isoprene repeat units, ...
https://drivepatents.com/patents/952016 · 11 Mar 2015
The present invention provides a modified natural rubber that offers higher efficiency of graft polymerization or attachment of a polar group-containing compounds, and that possesses excellent low loss factor, wear resistance and fracture resistance when u...
https://drivepatents.com/patents/962958 · 25 Feb 2015
A method for producing a polymer containing silica that does not involve long kneading time, and a polymer composition having an intended low heat generation property. A polymerization catalyst composition is produced by mixing and aging a second element a...
https://drivepatents.com/patents/962861 · 25 Feb 2015
Provided are a rubber composition for tire tread containing 100 parts by weight of raw material rubber, 10 parts to 100 parts by weight of a reinforcing filler, and 1 part to 20 parts by weight of a silane compound represented by the following formula (1),...
https://drivepatents.com/patents/964029 · 14 Jan 2015
Provided are: a polymer capable of providing a crosslinked rubber composition with improved durability (i.e., breaking resistance, abrasion resistance, and crack growth resistance) and a method for producing the same, a rubber composition containing the po...
https://drivepatents.com/patents/964026 · 14 Jan 2015
There is provided a hydrogenated branched conjugated diene copolymer prepared by copolymerizing 1 to 99% by weight of a branched conjugated diene compound (1): wherein R 1 is an aliphatic hydrocarbon having 6 to 11 carbon atoms, 99 to 0% by weight of a con...
https://drivepatents.com/patents/964027 · 14 Jan 2015
The polymer of the present invention is a synthesized polyisoprene or an isoprene copolymer. The polymer has a number average molecular weight (Mn) of 1.5 million or more when measured by using gel permeation chromatography (GPC).