Hot-melt adhesive for fiber

阅读:450发布:2024-02-24

专利汇可以提供Hot-melt adhesive for fiber专利检索,专利查询,专利分析的服务。并且PURPOSE: The titled adhesive having good adhesiveness to natural fibers and excellent water washing and dry cleaning resistances, comprising a specified copolyester.
CONSTITUTION: A dicarboxylic acid component comprising (a) 30W60mol% terephthalic acid, (b) 5W40mol% isophthalic acid, (c) 2W50mol% succinic acid/ glutaric acid mixture (molar ratio of 1:9W9:1) is transesterified with a 2W10C alkylene glycol (e.g., ethylene glycol) and (d) 5W40mol% 6W20C aliphatic dicarboxylic acid (e.g., adipic acid), and the product is polycondensed in high vacuum to obtain a copolyester of a softening point (as determined by a ring and ball method) of 80W160°C and a reduced viscosity of 0.5W1.2dl/g. A hot-melt adhesive for fiber is obtained easily by grinding the copolyester or by melting it at a temperature by 5W50°C higher than the softening point and extruding the melt into a film or fiber.
COPYRIGHT: (C)1984,JPO&Japio,下面是Hot-melt adhesive for fiber专利的具体信息内容。

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