申请人:GAF CORPORATION
公开号:EP0105601A1
公开(公告)日:1984-04-18
This invention relates to the reaction products of butyrolactone and an aliphatic amine utilizable as a chain extender and curing agent for castable polyurethanes and to the process employing said products in preparing castable polyurethane elastomers and to the process for preparing the butyrolactone amine adducts. The aliphatic amine reactants employed in preparing the butyrolactoneamine adducts are defined by the formula:
wherein X is amino (-NH2) or hydroxy (-OH); R is hydrogen (-H) or methyl (-CH3) and n has a value of 1 to 2, which amines are reacted with butyrolactone in a mole ratio of between about 1:1 and about 1:3 to provide a curing agent having superior mechanical properties and having the formula:
wherein R is hydrogen or methyl, R' is a hydroxy group or
and n has a value of 1 or 2.
本发明涉及可用作可浇注聚氨酯的扩链剂和固化剂的丁内酯和脂肪族胺的反应产物,以及使用上述产物制备可浇注聚氨酯弹性体的工艺和丁内酯胺加合物的制备工艺。用于制备丁内酯胺加合物的脂肪族胺反应物由式定义:
其中 X 是氨基 (-NH2) 或羟基 (-OH);R 是氢 (-H) 或甲基 (-CH3),n 的值为 1 至 2,这些胺与丁内酯以约 1:1 至约 1:3 的摩尔比反应,以提供具有优异机械性能的固化剂,其式为
其中 R 是氢或甲基,R' 是羟基或
且 n 的值为 1 或 2。