-
公开(公告)号:US5041467A
公开(公告)日:1991-08-20
申请号:US577425
申请日:1990-09-04
CPC分类号: C08G18/0804 , C08G18/0833 , C08G18/0861 , C08G18/38 , C08G18/4837
摘要: This invention relates to a method of producing particulate polymers. This production method is characterized in that a mixture of an isocyanate compound containing two or more isocyanato groups per molecule and a surfactant containing two or more hydroxyl groups per molecule is emulsified and allowed to cure in a dispersing medium which does not dissolve the isocyanate compound without use of a protective colloid. According to the production method of the invention, there occurs no aggregation of polymer particles during and after the curing reaction.