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    • 51. 发明授权
    • Polyurethane plastics containing thio groups
    • 含硫基的聚氨酯塑料
    • US4254229A
    • 1981-03-03
    • US106976
    • 1979-12-26
    • Jurgen SchwindtGerhard GroglerPaul Uhrhan
    • Jurgen SchwindtGerhard GroglerPaul Uhrhan
    • C08G18/10C08G18/38C08J5/18C08G18/14C07C149/40C08G18/32
    • C08J5/18C08G18/10C08G18/3868C08J2367/02
    • The instant invention is directed to polyurethane plastics which may be cellular, produced by reaction of polyisocyanates with relatively high molecular weight polyhydroxyl compounds and, optionally, low molecular weight polyhydroxyl compounds, and diamines, said polyurethane plastic containing structural units corresponding to the general formula ##STR1## in which R' represents a straight or branched divalent aliphatic, cycloaliphatic or aromatic radicals containing from 2 to 20 carbon atoms andR" represents hydrogen, a straight or branched alkyl radical containing from 1 to 6 carbon atoms, an aryl radical containing from 6 to 15 carbon atoms, a cycloalkyl radical containing from 4 to 12 carbon atoms, halogen, --NO.sub.2, --CN, --OR'" or a radical ##STR2## where R"' represents a straight or branched alkyl radical containing from 1 to 6 carbon atoms.
    • 本发明涉及可通过多异氰酸酯与相对高分子量多羟基化合物和任选的低分子量多羟基化合物和二胺的反应制备的聚氨酯塑料,所述聚氨酯塑料含有对应于通式 IMAGE>其中R'表示含有2至20个碳原子的直链或支链二价脂族,脂环族或芳族基团,R“表示氢,含有1至6个碳原子的直链或支链烷基,含有 6至15个碳原子的环烷基,含有4至12个碳原子的环烷基,卤素,-NO 2,-CN,-OR“或其中R”'表示含有直链或支链烷基的基团 1至6个碳原子。
    • 59. 发明授权
    • Solvent-free polyurethanes with fibrous reinforcing agents
    • 无溶剂的聚氨酯与纤维增强剂
    • US4336180A
    • 1982-06-22
    • US246816
    • 1981-03-23
    • Klaus ReckerGerhard Grogler
    • Klaus ReckerGerhard Grogler
    • C08G18/00C08G18/08C08G18/10C08K3/34C08K7/02C08L67/00C08L75/00C08L77/00C08L75/12
    • C08G18/10C08G18/0838C08K7/02
    • The instant invention is directed to a substantially solvent-free molding material, comprising(A) from 92 to 30% by weight, of an active-hydrogen containing prepolymer containing: from 0.3 to 4% by weight, based on the prepolymer, of free primary and/or secondary amino groups, from 1.5 to 10% by weight, based on the prepolymer, of urethane groups, and from 1.5 to 10% by weight, based on the prepolymer, of urea groups;(B) from 24 to 1% by weight of a polyisocyanate having a melting point above 120.degree. C.; and(C) from 5 to 69% by weight of an organic or inorganic fibrous material with a fiber length of from 0.1 to 100 mm, the equivalent ratio between NCO groups, including masked NCO groups, and active H-atoms of components (A) and (B) is between 1:1 and 1:1.75. The instant invention is also directed to a process for the production of the substantially solvent-free molding material.
    • 本发明涉及基本无溶剂的模塑材料,其包含(A)92至30重量%的含活性氢的预聚物,其包含:基于预聚物的0.3至4重量%的游离 初级和/或仲氨基,基于预聚物的1.5至10重量%的氨基甲酸酯基,和基于预聚物的基于预聚物的1.5至10重量%的脲基; (B)24〜1重量%的熔点高于120℃的多异氰酸酯。 和(C)5至69重量%的纤维长度为0.1至100mm的有机或无机纤维材料,NCO基团(包括掩蔽的NCO基团)和组分的活性H原子(A )和(B)在1:1至1: 1.75之间。 本发明还涉及生产基本上无溶剂的成型材料的方法。