Abstract: An aramid reinforcing element or cord is dipped in an aqueous adhesive composition of a phenolic-aldehyde resin and a vinyl pyridine latex and dried. The treatment is repeated again and preferably for three times. The repeatedly treated cord is then cured with a rubber compound to give improved H-adhesion values. If desired, a primer treatment with an epoxide may proceed the aqueous adhesive composition treatments.

Abstract: Vulcanizable rubber compositions providing excellent bonding of textile or metal reinforcing fibers thereto which comprises a rubber, a filler material, and an N-(substituted oxymethyl) melamine, 4,4'-isopropylidenediphenol reaction product or solution.

Abstract: An aqueous alkaline dispersion of a rubbery polybutadiene and a water soluble, heat reactive phenolic resin is useful in forming an adhesive for bonding polyamide or polyester reinforcing elements or cords to ethylene-propylene-diene rubbery polymer (EPDM) compounds or stocks. After dipping the polyamide or polyester cord in the adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing polyamide or polyester cord is combined with, or laminated to (calendered), a curable or vulcanizable EPDM compound and the resulting assembly is cured to form a composite in which the polymide or polyester cord is bonded to the EPDM rubber by means of said adhesive.

Abstract: This invention relates to an improvement of the adhesion of brass-coated steel tire cord to a vulcanized rubber composition. The adhesion is obtained by adding an aromatic triazole and an organo cobalt compound to an unvulcanized rubber compound in order to obtain metal-rubber bonding when vulcanized. Tires formed by the above process have good resistance to heat and moisture.

Abstract: The use of a minor amount by weight of a polycarbodiimide in an active Br or Cl containing polymer serves to lessen the adverse effects caused by formation of Br or Cl decomposition products on aging. In particular, the use of polycarbodiimides in bromo butyl or chloro butyl rubber tire inner liners, especially those also accelerated by polyimino compounds during curing, adjacent hydrocarbon rubber layers (carcass or ply stocks) reinforced with polyester cords serves to reduce the degradations or heat aging of the polyester cord caused by Br and/or Cl and/or amine compounds or fragments which may tend to migrate from the inner liner through the ply stock to the polyester cords.

Abstract: This invention concerns a method of making a urethane-terminated polycarbodiimide and the product resulting therefrom wherein the product displays unique hydrolytic degradation stabilization properties for polyester urethane rubbers and peroxide cured hydrocarbon rubbers. The method involves reacting an arylene diisocyanate with a stoichiometric deficiency of a primary or secondary aliphatic alcohol containing no other isocyanate-reactive substituents, thereby converting less than all of the isocyanate groups to urethane groups, and thereafter admixing thereto a carbodiimide-forming catalyst to polymerize the unconverted isocyanate groups and form the urethane-terminated polycarbodiimide.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer and a water soluble, heat reactable o-cresol-formaldehyde-resorcinol resin, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to d ry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.

Abstract: Rubber compounds are readily bonded to reinforcing elements, particularly tire cords of glass fibers, using a one-step dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery vinyl pyridine/styrene/butadiene terpolymer and a lignin sulfonate-resorcinol-formaldehyde reaction product. Good adhesion of the cords to a rubber compound are obtained with this process.

Abstract: Rubber compounds are readily bonded to reinforcing elements, particularly tire cords of glass fibers, using a one-step dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery vinyl pyridine/styrene/butadiene terpolymer and a lignin sulfonate-resorcinol-formaldehyde reaction product. Good adhesion of the cords to a rubber compound are obtained with this process.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer, a polymethylol glycoluril compound, and a resorcinol-formaldehyde novolak, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer, a stabilized colloidal silica sol, and a heat reactable resorcinol-formaldehyde resole, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer and a water soluble, heat reactable o-cresol-formaldehyde-resorcinol resin, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer and a water soluble, heat reactable o-cresol-formaldehyde-resorcinol resin, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.