Thermoplastic linear block copolyether-polyesters as hot melt adhesives
for textiles
    1.
    发明授权
    Thermoplastic linear block copolyether-polyesters as hot melt adhesives for textiles 失效
    热塑性线性嵌段共聚醚 - 聚酯作为纺织品热熔粘合剂

    公开(公告)号:US4130603A

    公开(公告)日:1978-12-19

    申请号:US765608

    申请日:1977-02-04

    摘要: A hot melt adhesive for textiles which comprises a thermoplastic linear block copolyether-polyester consisting essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, glycol unit derived from 1,4-butanediol and a polyether unit derived from polytetramethylene glycol having a molecular weight of about 600 to 1,300, wherein the amount of the polyether unit is 10 to 33 % by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 and a melting point of 95.degree. to 145.degree. C. The hot melt adhesive affords a large adhesive bond strength without spoiling the softness and liveliness of the textiles.

    摘要翻译: 一种用于纺织品的热熔粘合剂,其包含基本上由衍生自对苯二甲酸40至60mol%的二羧酸单元和60至40mol%间苯二甲酸的热塑性线性嵌段共聚醚 - 聚酯,衍生自1,4-丁二醇的二醇单元, 丁二醇和衍生自分子量为约600〜1,300的聚四亚甲基二醇的聚醚单元,其中聚醚单元的量为基于嵌段共聚醚 - 聚酯为10〜33重量%,嵌段共聚醚 - 聚酯具有 相对粘度为1.3〜1.7,熔点为95〜145℃。热熔粘合剂具有较大的粘合强度,且不会破坏纺织品的柔软度和活力。