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    • 9. 发明公开
    • 폴리에스테르카르보네이트-폴리우레탄우레아 섬유
    • 聚氨酯 - 聚氨酯纤维
    • KR1020000057560A
    • 2000-09-25
    • KR1019997005287
    • 1997-12-10
    • 듀폰 도레이 컴파니, 리미티드
    • 이또,신고마쯔다,도시가즈우메자와,마사오
    • C08G18/44
    • D01F6/70C08G18/10C08G18/44C08G18/75C08G18/3228C08G18/3234
    • PURPOSE: Polyestercarbonate-polyurethaneureas based on polycarbonate diols which in turn are based on mixtures of poly(hexane-1,6-carbonate)diol and poly(.ε-caprolactone) diol, cyclic aliphatic diisocyanates and diamine chain extenders are provided. CONSTITUTION: First, 552 g of "Nipporan 982N" capped with 4,4'-methylenebis(cyclohexylisocyanate) (Sanyo Kasei, Kyoto, Japan), molar ratio of modified polycarbonate diol to diisocyanate 1:1.8, was placed in a 2-liter flask and dissolved in 1094 g of DMAc, following which a solution of a mixture of 10.62 g of ethylene diamine and 0.52 g of diethylamine diluted with 100.2 g of DMAc was added dropwise over a period of 20 minutes, thereby carrying out the chain extension reaction and giving a viscous polymer solution. The viscosity of this polymer solution was measured with a falling ball-type viscometer, and was found to be 3540 poises at 400C. The polymer solution (32% solids) was then conventionally dry-spun at a speed of 530 m/min with the speed ratio between the godet roller and the winder set at 1.45, and 18-denier/filament yarn was wound onto a conventional cardboard tube.
    • 目的:提供基于聚碳酸酯二醇的聚酯碳酸酯 - 聚氨酯脲,其又基于聚(己烷-1,6-碳酸酯)二醇和聚(ε-己内酯)二醇的混合物,环状脂族二异氰酸酯和二胺增链剂。 构成:首先,将552g用4,4'-亚甲基双(环己基异氰酸酯)(Sanyo Kasei,Kyoto,Japan)封端的“Nipporan 982N”,将改性聚碳酸酯二醇与二异氰酸酯1:1.8的摩尔比置于2升 烧瓶中,溶解在1094g DMAc中,随后在20分钟内滴加10.62g乙二胺和0.52g用100.2g DMAc稀释的0.52g二乙胺的混合物溶液,由此进行扩链反应 并提供粘性聚合物溶液。 用落球式粘度计测定该聚合物溶液的粘度,发现在40℃下为3540泊。 然后将聚合物溶液(32%固体)以530m / min的速度干纺,导丝辊和络纱机之间的速度比设定在1.45,并将18旦/长丝纱卷绕到常规纸板上 管。