发明名称 POLYURETHANE AQUEOUS DISPERSION AND ITS PRODUCTION
摘要 PROBLEM TO BE SOLVED: To obtain the subject dispersion excellent in adhesive force to substrates by reaction between a polyurethane prepolymer, an organic silane compound and an alkanolamine. SOLUTION: This dispersion is obtained by reaction between an isocyanate- terminated polyurethane prepolymer containing polyoxyethylene chain, an organic silane compound (pref. an alkoxysilane derivative such asγ- aminopropyltriethoxysilane) and an alkanolamine (pref. about in such an amount of diethanolamine as to block <=0.5 equivalent of the active isocyanate group on the polyurethane prepolymer terminals) followed by emulsification in water. This dispersion is such one that a polyurethane component bearing functional groups capable of forming silanol groups when hydrolyzed, containing a polyoxyalkylene skeleton (pref. at 10-30 wt.%) formed from a polyoxyethylene glycol pref. 400-25,000 in average molecular weight and having oxyethylene units as hydrophilic skeleton, is dispersed in water.
申请公布号 JPH1160939(A) 申请公布日期 1999.03.05
申请号 JP19970221500 申请日期 1997.08.18
申请人 NIPPON NSC LTD 发明人 FUTAKUCHI OSAMU
分类号 C08L75/04;C08G18/10;C08G18/56;C08G18/83;(IPC1-7):C08L75/04 主分类号 C08L75/04
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