摘要:
Improved breaker structures employed between the carcass (11) and tread portion (19) of a pneumatic tire (10). The breaker comprises a layer of rubber matrix having a modulus of elasticity of from about 30 to 200 MPa and a plurality of reinforcing filaments (22) having an angular disposition relative to the median plane of the tire.
摘要:
A breaker structure for a pneumatic tire comprised of a homogenous band comprised of a material having a modulus of between 200 and 10,000 megapascals and having a thickness of between 0.05 inches and .35 inches wherein said homogenous bands is reinforced with a cord material disposed circumferentially about said tire.
摘要:
Disclosed is a composition for the improvement of the adhesion between conventional rubber skim stock compositions, utilized in the manufacture of tires, conveyor belts, hoses and the like, and metallic reinforcement cords or members such as bright steel. The invention composition is prepared by adding an organosilane compound to the rubber skim stock prior to contacting the metallic reinforcement. Tests conducted with bright steel showed improved metal adhesion with use of the rubber skim stock of this invention when compared to existing formulations withoutthe additive.
摘要:
A method for reducing stress relaxation in polyurethanes comprises the step of subjecting the polyurethane polymer to a post cure radiation treatment of up to about 12 Mrads.
摘要:
A breaker structure for a pneumatic tire comprised of a homogenous band comprised of a material having a modulus of between 200 and 10,000 megapascals and having a thickness of between 0.05 inches and .35 inches wherein said homogenous bands is reinforced with a cord material disposed circumferentially about said tire.
摘要:
Rubber compositions and articles such as tires having improved metal adhesion and metal adhesion retention to bright steel metallic reinforcement. The improvement comprises admixing from about 0.2to about 6.0 parts per hundred rubber (phr) of a cobalt compound selected from the group consisting of cobalt chloride bis(8-hydroxyquinolate) and cobalt bis(8-hydroxyquinolate) with a vulcanizable rubber composition prior to embedding the metallic reinforcement therein and curing. A method for improving the metal adhesion and metal adhesion retention between a vulcanizable rubber and bright steel metallic reinforcement includes the step of dispersing from about 0.2 to about 6.0 phr of a cobalt compound selected from the group consisting of cobalt chloride bis(8-hydroxyquinolate) and cobalt bis(8-hydroxyquinolate) in a vulcanizable rubber composition prior to curing.
摘要:
This invention is directed to a method, a rubber skim stock and a product containing the skim stock having improved adhesion between a metal member and contiguous rubber skim stock. The invention lies in the discovery that improved rubber-to-metal adhesion can be obtained by adding to an otherwise conventional rubber skim stock composition appropriate amounts of a tetracarboxylic dianhydride. The method of this invention comprises the steps of mixing a tetracarboxylic dianhydride into a rubber composition, bringing this composition into contiguous relationship with a metal member in an unvulcanized product and vulcanizing the product to yield the end product.