公开(公告)号：US06677424B2

公开(公告)日：2004-01-13

申请号：US10040820

申请日：2002-01-07

申请人： Hans-Jünrgen Figge ,  Georg Wigger ,  Marita Schilling

发明人： Hans-Jünrgen Figge ,  Georg Wigger ,  Marita Schilling

IPC分类号： C08G1880

CPC分类号： C09D175/04 ,  C08G18/0823 ,  C08G18/12 ,  C08G18/4233 ,  C08G18/6659 ,  C09D175/06 ,  C08G18/2865 ,  C08G18/792 ,  C08G18/3275 ,  C08G18/807

摘要： The invention relates to a coating composition comprising at least one OH-functional binder component and at least one component compound, functioning as a crosslinking agent, which has NCO groups blocked with a pyrazole compound. It is characterized in that the component compound which functions as a crosslinking agent is obtainable by a) polymerizing a polyol or a mixture of polyols having a number-average molecular weight in the range from 300-5000 by adding a polyisocyanate compound A or a mixture of polyisocyanate compounds A to give a polyurethane prepolymer, b) chain-extending the polyurethane prepolymer by adding a chain extender compound, to give a polyurethane polymer having free OH groups, c) reacting the OH-containing polyurethane polymer from b) with a polyisocyanate B or a mixture of polyisocyanates B to give a polyisocyanate-polyurethane polymer, and d) free isocyanate groups of the polyisocyanate-polyurethane polymer having been blocked with the pyrazole compound or a mixture of pyrazole compounds.

摘要翻译： 本发明涉及一种包含至少一种OH-官能的粘合剂组分和至少一种组分化合物的涂料组合物，其作用为具有用吡唑化合物封闭的NCO基团的交联剂。 其特征在于用作交联剂的组分化合物可通过以下方式得到：a）通过加入多异氰酸酯化合物A或其混合物使多元醇或数均分子量为300-5000的多元醇的混合物聚合， 的多异氰酸酯化合物A，得到聚氨酯预聚物，b）通过加入扩链剂化合物链延伸聚氨酯预聚物，得到具有游离OH基团的聚氨酯聚合物，c）使来自b）的含OH聚氨酯聚合物与多异氰酸酯 B或多异氰酸酯B的混合物，得到多异氰酸酯 - 聚氨酯聚合物，以及d）被吡唑化合物或吡唑化合物混合物封闭的多异氰酸酯 - 聚氨酯聚合物的游离异氰酸酯基团。