Rubber and Textile Bonding

摘要

1,158,463. Coated fabrics. FARBENFABRIKEN BAYER A.G. 29 June, 1966 [1 July, 1965; 23 April, 1966], No. 29260/66. Heading B2E. [Also in Divisions B5, C3 and D1] The adhesion of a fabric to rubber is improved by adding to a vulcanisable mixture based on natural or synthetic rubber which is applied to .the fabric tetra methylol-hydrazodicarbonamide, an ether or ester thereof, or, instead of the pure tetramethylol-hydrazo-' dicarbonamide, the polymeric product of the condensation of formaldehyde and hydrazodicarbonamide, and a benzene derivative which contains in the m-position two optionally etherified or esterified hydroxyl groups and/or amino groups or a condensate thereof with a ketone and/or aldehyde or instead of the benzene derivative, 1,5-dihydroxynaphthalene. The benzene derivative may be resorcinol, m-aminophenol, m-phenylene diamine, resorcinol diacetate, propionate or butyrate, resorcinol monomethylether or propyl ether or an incompletely condensed resin of resorcinol with .formaldehyde, acetaldehyde or acetone. The rubber may be natural rubber, a copolymer of butadiene-styrene, butadiene-acrylo - nitrile, isobutylene-isoprene or ethylene-propylene usually with a third constituent, polyisoprene, polybutadiene or polychlorobutadiene or a blend thereof. The fabric may be woven or knitted from viscose rayon, polyamide, polyester, polyacrylonitrile or cotton fibres. The fibres may be preimpregnated with natural rubber, butadiene-styrene, butadieneacrylonitrile, chlorobutadiene, butadienestyrene-vinyl pyridine polymers and their blends and resorcinol-formaldehyde resins. The rubber may also contain carbon black, zinc oxide, pinewood oil, mineral oil, phenyl-α-naphthylamine, sulphur, benzothiazyl-2- cyclohexyl sulphenamide, diphenyl guanidine, stearic acid, thiuram monosulphide, xylenolformaldehyde resin, N-phenyl-N'-cyclohexylp-phenylene diamine, phenyl-α-naphthylamine or N-diethyl-2-benzcthiazyl sulphenamide.