| 摘要 |
<p>901,556. Laminates. UNITED STATES RUBBER CO. April 27, 1960 [June 4, 1959], No. 14695/60. Class 140. A body of polyethylene terephthalate, e.g. a cord or woven fabric of polyethylene terephthalate fibres, or a film of the material, is adhered to an isobutylene-isoprene copolymer (butyl) rubber by treating the polyethylene terephthalate body with an epoxy resin, compounding the rubber for vulcanization with 2,2<SP>1</SP>-methylenebis-(4-chloro-6-methylolphenol), laminating the body and compounded rubber, and subjecting the laminate to vulcanizing conditions. The epoxy resin may be applied in aqueous solution, which may include dispersed isobutylene-isoprene copolymer rubber. The epoxy resin may be a condensation product of epichlorhydrin with glycerol or with bisphenol. U.S.A. Specifications 2,669,119, 2,698,315 and 2,839,495 are referred to. Reference has been directed by the Comptroller to Specification 610,170.</p> |
