申请人:TORAY INDUSTRIES, INC.
公开号:EP0110657A2
公开(公告)日:1984-06-13
A method of making a composite sheet material which has soft and pliable hand characteristics, despite being dense, and also high resistance against discoloration and deterioration, the method involving impregnating and/or coating a fibrous sheet with a mixture of (a) a polyurethane elastomer containing a sterically hindered amino group in its molecule, (b) a specific amount of polybasic acid and/or specific derivatives thereof, and (c) subjecting the resulting material to a wet-coagulation treatment.
一种制造复合片材的方法,这种材料虽然致密,但手感柔软,而且具有很强的抗变色和抗变质能力,该方法包括用以下物质的混合物浸渍和/或涂覆纤维片材:(a) 分子中含有立体受阻氨基的聚氨酯弹性体;(b) 特定量的聚巴斯酸和/或其特定衍生物;(c) 将所得材料进行湿凝处理。