The invention relates to a footwear with a rubber sole where such sole is comprised of a rubber composition which contains zinc rosinate. The zinc rosin is provided to include zinc rosinate as a product formed in situ within the rubber composition of zinc oxide and freely added rosin acid. The footwear rubber sole is intended for ground engagement. In one embodiment, the rubber composition for the rubber sole further contains triglyceride vegetable oil. In one embodiment, the rubber composition for the rubber sole additionally contains a traction promoting resin.

Disclosed are, inter alia, a rubber composition for suspension bush with improved fatigue durability and a rubber for a vehicle suspension bush including the same. The rubber may have increased hardness by applying a thiol-based compound as a cross-linking agent. The rubber composition may include a natural rubber, a filler including carbon black; a crosslinking agent including a thiol-based compound, an activator including zinc oxide and stearic acid, a sulfur, and a sulfur accelerator.

Polyolefin based vitrimers having at least one disulfmyl linking unit are described. Uses and methods of making the vitrimers are also described.

A process for manufacturing a rubber composition which comprises more than 50 phr of a diene elastomer rich in ethylene units, a reinforcing filler comprising a carbon black and a vulcanization system comprising sulfur, a sulfenamide as primary accelerator and a thiuram polysulfide or a mixture of a thiuram polysulfide and a guanidine as secondary accelerator is provided. The process comprises mixing the highly saturated diene elastomer, the reinforcing filler and the secondary accelerator by kneading at a temperature above 110′C, in the absence of the sulfur and the primary accelerator, and incorporating the sulfur and the primary accelerator into the rubber composition by kneading at a temperature below 110° C. The process makes it possible to reduce the hysteresis of the vulcanized rubber compositions.

In a pneumatic tire, a tread portion comprises longitudinal and/or lateral grooves; a groove area ratio of a vehicle inner side region of the tread portion ranges from 30% to 39%; a difference between the groove area ratio Sin and a groove area ratio Sout ranges from 6-14%; and the rubber composition comprises a diene rubber comprising from 10-30 parts by mass of natural rubber and from 70-90 parts by mass of a solution polymerized styrene-butadiene rubber and/or an emulsion polymerized styrene-butadiene rubber per 100 parts by mass of the diene rubber, from 80-150 parts by mass of silica per 100 parts by mass of the diene rubber, from 0.5-10 parts by mass of a cyclic polysulfide per 100 parts by mass of the diene rubber, and from 3-10 mass % of an alkyltriethoxysilane having an alkyl group having from 3-20 carbons relative to an amount of the silica.

In a pneumatic tire, a tread portion comprises longitudinal and/or lateral grooves; a groove area ratio of a vehicle inner side region of the tread portion ranges from 30% to 39%; a difference between the groove area ratio Sin and a groove area ratio Sout ranges from 6-14%; and the rubber composition comprises a diene rubber comprising from 10-30 parts by mass of natural rubber and from 70-90 parts by mass of a solution polymerized styrene-butadiene rubber and/or an emulsion polymerized styrene-butadiene rubber per 100 parts by mass of the diene rubber, from 80-150 parts by mass of silica per 100 parts by mass of the diene rubber, from 0.5-10 parts by mass of a cyclic polysulfide per 100 parts by mass of the diene rubber, and from 3-10 mass % of an alkyltriethoxysilane having an alkyl group having from 3-20 carbons relative to an amount of the silica.

In a pneumatic tire, a tread portion comprises longitudinal and/or lateral grooves; a groove area ratio of a vehicle inner side region of the tread portion ranges from 30% to 39%; a difference between the groove area ratio Sin and a groove area ratio Sout ranges from 6-14%; and the rubber composition comprises a diene rubber comprising from 10-30 parts by mass of natural rubber and from 70-90 parts by mass of a solution polymerized styrene-butadiene rubber and/or an emulsion polymerized styrene-butadiene rubber per 100 parts by mass of the diene rubber, from 80-150 parts by mass of silica per 100 parts by mass of the diene rubber, from 0.5-10 parts by mass of a cyclic polysulfide per 100 parts by mass of the diene rubber, and from 3-10 mass % of an alkyltriethoxysilane having an alkyl group having from 3-20 carbons relative to an amount of the silica.

A thermally conductive resin composition capable of maintaining high thermal conductivity and a thermally conductive sheet using the same. A thermally conductive resin composition contains: an addition reaction type silicone resin; a hindered phenol-based antioxidant; a thiol-based antioxidant; a dispersant having a hydrophilic functional group and a silicone chain; and a thermally conductive filler, wherein the thermally conductive resin composition contains 65 to 90% by volume of the thermally conductive filler.

A thermally conductive resin composition capable of maintaining high thermal conductivity and a thermally conductive sheet using the same. A thermally conductive resin composition contains: an addition reaction type silicone resin; a hindered phenol-based antioxidant; a thiol-based antioxidant; a dispersant having a hydrophilic functional group and a silicone chain; and a thermally conductive filler, wherein the thermally conductive resin composition contains 65 to 90% by volume of the thermally conductive filler.

The present invention relates to the use of specific cinnamic acid esters as stabilizers of organic materials, in particular against oxidative, thermal and/or actinic degradation. The invention also relates to a corresponding stabilized organic material. The invention further relates to a method for stabilizing organic materials, in which specific cinnamic acid esters are incorporated into the organic material. According to the invention, specific new cinnamic acid esters are also disclosed.