Process of preparing nonaqueous dispersions of thermosetting copolymers
    1.
    发明授权
    Process of preparing nonaqueous dispersions of thermosetting copolymers 失效
    制备热分解共聚物非分散体的方法

    公开(公告)号:US3745137A

    公开(公告)日:1973-07-10

    申请号:US3745137D

    申请日:1971-10-26

    发明人: REID C HICKS D GREEN C

    摘要: NONAQUEOUS DISPERSIONS OF COPOLYMERS OF (1) AT LEAST ONE ETHYLENICALLY-UNSATURATED MONOMER, (2) A HYDROXYALKYL ESTER OF AN UNSATURATED ALIPHATIC MONOCARBOXYLIC ACID, AND (3) A DIFFERENT HYDROXY-CONTAINING ETHYLENICALLY UNSATURATED MONOMER, WHICH DISPERSIONS ARE STABLE PER SE AND IN THE PRESENCE OF AMINOPLAST RESINS AND SOLUTIONS THEREOF, AND THE COPOLYMERS ARE INTERNALLY COMPATIBLE. THE DISPERSIONS ARE PREPARED BY THE PROCESS WHICH COMPRISES FIRST PARTIALLY POLYMERIZING A PORTION OF AT LEAST ONE OF THE HYDROXY-FREE AND CARBOXY-FREE MONOMERS WITH ALL OF THE DIFFERENT HYDROXY-CONTAINING ETHYLENICALLY UNSATURATED MONOMER, FOLLOWED BY ADDING ALL OF THE REMAINING MONOMERS AND HOLDING TO ESSENTIALLY COMPLETE CONVERSION. THE DISPERSIONS ARE USEFUL IN COATING COMPOSITIONS.