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    • 76. 发明申请
    • POLYURETHANE HOT-MELT ADHESIVE PRODUCED FROM POLYACRYLATES AND POLYESTERS
    • 由聚丙烯酸酯和聚酯制成的聚氨酯热熔胶
    • US20130210989A1
    • 2013-08-15
    • US13839302
    • 2013-03-15
    • Henkel AG & Co. KGaA
    • Michael KrebsUwe Franken
    • C09J133/06C09J167/02
    • C09J133/06C08G18/10C08G18/4238C08G18/4825C08G18/71C08G2170/20C08L33/12C08L67/02C09D175/08C09J167/02C08G18/307C08L2666/18C08L2666/04
    • A solvent-free moisture-curing polyurethane hot-melt adhesive composition, in which the adhesive comprises the following components: 20 to 85 wt % of a polyurethane prepolymer with free isocyanate groups produced from at least one polyol from the group of polyether polyols, polyester polyols, polyalkylene polyols and mixtures thereof with an excess of at least one polyisocyanate, the prepolymer having a monomeric diisocyanate content of below 1 wt %, 4 to 40 wt % of at least one acrylate copolymer with a molecular weight of below 60,000 g/mol, 3 to 35 wt % of a thermoplastic polyester with a number-average molecular weight (MN) of below 6000 g/mol, which comprises fewer than 1.4 NCO-reactive groups, and 0 to 25 wt % of at least one additive from the group of catalysts, resins, plasticizers, fillers, pigments, stabilizers or adhesion promoters, the sum of the constituents being equal to 100 wt %.
    • 无溶剂的湿固化聚氨酯热熔粘合剂组合物,其中粘合剂包含以下组分:20至85重量%的由至少一种由聚醚多元醇组成的多元醇产生的具有游离异氰酸酯基团的聚氨酯预聚物,聚酯 多元醇,聚亚烷基多元醇及其与过量的至少一种多异氰酸酯的混合物,该预聚物具有低于1重量%的单体二异氰酸酯含量,4至40重量%的至少一种分子量低于60,000克/摩尔的丙烯酸酯共聚物 ,3至35重量%的数均分子量(MN)低于6000g / mol的热塑性聚酯,其包含少于1.4个NCO反应性基团,和0至25重量%的至少一种来自 一组催化剂,树脂,增塑剂,填料,颜料,稳定剂或粘合促进剂,组分的总和等于100wt%。