Abstract:
832,077. Woven fabrics with yarns specially treated: yarns and threads. GOODRICH CO., B. F. Nov. 13, 1956 [Nov. 14, 1955], No. 34652/56. Drawings to Specification. Classes 120(3) and 142(4) [Also in Groups VIII and XXXIV] To prevent wicking of air along the cords of a rubberized fabric tubeless tyre chafer strip, the cords consist of synthetic filaments twisted together with the interstices between the filaments blocked by a normally solid high molecular weight non- elastomeric synthetic linear polymer soluble in water or in an organic solvent. Such polymers include polyvinyl alcohol, polyvinyl acetate, polyacrylate, polymethacrylate, and water-soluble polyamide, and may be deposited in the interstices by dipping the cords, or the fabric, in a solution of the polymer. The filaments may be of nylon and the fabric may be of square or leno weave. The cords may have a low twist of the order of three turns per inch, or may comprise a plurality of yarns ³f high twist in which case the deposition of the polymer may be effected by wet twisting through the solution.
Abstract:
Synthetic textile tire cords, particularly polyester tire cords, are adhered to elastomeric tire stocks by a process involving (1) dipping the cords into a noncuring phenol-aldehyde liquid resin (2) heating to accomplish wetting of the outside filaments of the said cords with said resin, (3) dipping the cords into a resorcinol-formaldehyde-latex dip, (4) heating to dry the twice dipped cord and (5) heating the treated cord in contact with the desired elastomeric stock under pressure as the said stock is vulcanized.