Polymers of aromatic n-3-oxohydrocarbon-substituted acrylamides
    21.
    发明授权
    Polymers of aromatic n-3-oxohydrocarbon-substituted acrylamides 失效
    芳族N-3-氧代烃基取代的丙烯酰胺的聚合物

    公开(公告)号:US3578637A

    公开(公告)日:1971-05-11

    申请号:US3578637D

    申请日:1968-07-19

    申请人: LUBRIZOL CORP

    发明人: COLEMAN LESTER E

    摘要: NOVEL N-3-OXOHYDROCARBON - SUBSTITUTED ACRYLAMIDES CONTAINING AN AROMATIC RADICAL IN EITHER THE 1 OR 3 POSITION ON THE OXOHYDROCARBON SUBSTITUENT ARE PREPARED BY THE REACTION OF ACRYLONITRILE WITH AN AROMATIC KETONE HAVING AT LEAST ONE ALPHA HYDROGEN ATOM, OR WITH A MIX, TURE OF SUCH A KETONE WITH AN AROMATIC OR ALIPHATIC ALDEHYDE OR KETONE HAVING AT LEAST ONE ALPLHA HYDROGEN ATOM, IN THE PRESENCE OF SULFURIC ACID; OR BY THE REACTION OF ACRYLONITRILE WITH A B=HYDROXY OXOHYDROCARBON OR AN A,B-UNSATRUATED OXOHYDROCARBON DERIVED FROM SAID AROMATIC KETONE OR MIXTURE. OIL-SOLUBLE PLOLYMERS FORMED BY THE POLYMERIZATION OF THESE ACRYLAMIDES, AND ALSO BY THE POLYMERIZATION OF ACRYLAMIDES CONTAINING AT LEAST TWO AROMATIC SUBSTITUENTS, ONE IN THE 1 POSITION AND ONE IN THE 3 POSITION OF THE NITROGEN SUBSTITUENT, ARE USEFUL AS VISCOSITY INDEX IMPROVERS FOR LUBRICATING OILS.