| 摘要 |
<p>1,148,334. Polyurethane bonded textile laminates. FARBENFABRIKEN BAYER A.G. 17 April, 1967 [21 April, 1966], No. 17475/67. Heading B5N. [Also in Division C3] A process for laminating textile materials comprises applying a polyurethane, e.g. in the form of a powder, made by the reaction of hexane-1 : 6-diisocyanate and methyl-hexane- 1: 6-diol or a mixture of isomers thereof to the surface of a textile material, applying a second textile material to the polyurethane and heat sealing the resultant composite preferably with application of pressure. Polyurethane particles may be sintered, e.g. by infra-red radiation prior to application of the second textile material. Specified textiles are woven, knitted or non-woven fabrics and may be derived from cotton, wool, polyacrylonitrile, polyamide or polyester fibres or mixtures thereof and may also contain polyurethane fibres. The polyurethanes optionally contain a residue from diethylene glycol, neopentyl glycol, hexane- 1 : 6- diol, butane-1 : 4-diol or N-methyl diethanolamine.</p> |
