| 摘要 |
Novel isocyanatosilanes having the formula <FORM:1089590/C3/1> where Y is acyloxy, ketoximato, or halogen, R is a monovalent saturated hydrocarbon or halogenated hydrocarbon radical or a monovalent aryl or halogenated aryl radical, Q is a divalent cycloalkane radical or CR12CHR1(R11)b, R1 is hydrogen or an alkyl radical, R11 is a divalent radical R111 or R111OR111 where R111 is a divalent saturated hydrocarbon or halogenated hydrocarbon radical or aryl or halogenated aryl radical, a is 0, 1 or 2 and b is is 0 or 1, are prepared by adding a silicon hydride having formula <FORM:1089590/C3/2> to an olefinically unsaturated isocyanate having formula Q1NCO in the presence of a platinum catalyst. Q1 is CR12=CR1(R11)b/t or a cycloalkenyl radical and R1, R11, R111, a and b are as above. R may be aryl or halogenated aryl aralkyl, alkyl, haloalkyl or cycloalkyl. R11 may be alkylene or haloalkylene, arylene or haloarylene, alkyleneoxyalkylene, alkyleneoxyarylene or aryleneoxyarylene. In the examples methyldiacetoxy - (3 - isocyanatopropyl)silane, dimethyl acetoxy - (3 - isocyanatopropyl)silane, bis-(ethyl methyl ketoximato) methyl-3-isocyanatopropylsilane, (ethyl methyl ketoximato) - dimethyl - 3 - isocyanatopropylsilane, methyl dichloro (3-isocyanatopropyl)silane, dimethyl chloro-3-isocyanatopropyl)silane, 4-[31 - dichloromethyl silyl)propoxy] phenyl isocyanate and 4-[21-(acetoxydimethyl silyl)ethyl]-phenyl isocyanate are prepared. Methyl di-acetoxy-(3-isocyanatopropyl)silane may be polymerized alone or it may be used as a curing agent for polypropylene glycol.ALSO:A stiff fibrous material is obtained by dipping pieces of cotton print cloth into a solution of methyldiacetoxy-(3-isocyanto-propyl) silane and dibutyltindilaurate in toluene, drying the treated cloth, immersing it in water and redrying. Isocyanatosilanes of the formula: <FORM:1089590/D1-D2/1> where Y is an acyloxy, ketoximato or halogen radical, Q is CH/sv2CHR/sv(R/yF)b or a divalent cycloalkane radical, R is a monovalent saturated hydrocarbon or halohydrocarbon, aryl or haloaryl radical, R/sv is hydrogen or an alkyl radical, R/yF is R/yG or R/yGOR/yG radical where R/yG is a divalent saturated hydrocarbon or halohydro carbon, aryl or haloaryl radical, a is 0, 1 or 2 and b is 0 or 1, may be used as fabric stiffeners. p |
