专利名称：ELECTROPHORETIC ENAMEL AND PROCESS FOR LACQUERING ELECTROCONDUCTIVE
SUBSTRATES
发明人：REUTER, HARDY,OTT, GUENTHER,JOUCK, WALTER
申请号：EP94918852.8
申请日：19940608
公开号：EP0705308B1
公开日：
reaction between pvp and amino19971112
专利内容由知识产权出版社提供
摘要：Aqueous electrophoretic enamels containing cathodically precipitable synthetic resins are characterised in that they contain a reaction product (A) and a free radical-forming polymerisation initiator (B). The reaction product (A) is prepared by reacting (a) a polyisocyanate or a mixture of polyisocyanates with (b) an organic compound which contains per molecule at least one ethylenically unsaturated double bond and at least one active hydrogen atom and at least one tertiary amino group and/or at least one ketimine and/or aldimine group or a mixture of such organic compounds and if required (d) an organic compound different from (b) and (c) which contains per molecule at least one active hydrogen atom or a mixture of such organic compounds. The volume ratio between the reaction partners is such that 3 to 80 % of the NCO groups of component (a) react with component (b), 3 to 80 % of the NCO groups of component (a) react with component (c) and 0 to 94% of the NCO groups of component (a) react with component (d). The thus obtained reaction product is dispersed in water. Before, during and after dispersion, at least 5% of the tertiary and/or primary amino groups contained in the
reaction product are neutralised with a Br？nsted acid.
申请人：BASF LACKE + FARBEN AG,BASF LACKE & FARBEN,BASF LACKE + FARBEN AG 地址：DE
国籍：DE
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