Lactam polymerization with amide initiators
    5.
    发明授权
    Lactam polymerization with amide initiators 失效
    LACTAM聚合与酰胺启动子

    公开(公告)号:US3755267A

    公开(公告)日:1973-08-28

    申请号:US3755267D

    申请日:1971-11-11

    IPC分类号: C08G69/20 C08G20/18

    CPC分类号: C08G69/20

    摘要: Certain amide compounds based on aromatic amines are utilized as polymerization initiators or activators with alkaline catalysts in the anionic polymerization of lactam monomers so as to provide polymerization systems which may be utilized in a variety of molding operations.

    摘要翻译: 在内酰胺单体的阴离子聚合中,某些基于芳族胺的酰胺化合物用作具有碱性催化剂的聚合引发剂或活化剂,以提供可用于各种成型操作的聚合体系。

    Extended polylactone diol compositions
    7.
    发明授权
    Extended polylactone diol compositions 失效
    扩展的聚酯二醇组合物

    公开(公告)号:US3843708A

    公开(公告)日:1974-10-22

    申请号:US12781971

    申请日:1971-03-24

    发明人: MATZNER M

    IPC分类号: C08G63/08 C08G63/64 C07C69/00

    CPC分类号: C08G63/08 C08G63/64

    摘要: This invention relates to improved block copolycarbonates containing an amorphous, soft, rubbery segment or block composed of lactone units and other crystalline, hard, thermoplastic segment or block composed of dihydric phenol carbonate units. The present invention also relates to novel liquid compositions formed by extending an appropriate polylactone diol with an extending agent selected from the group consisting of dihydric phenols, aliphatic diols, dicarboxylic acids and hydroxy monocarboxylic acids. The aforementioned extended diols are particularly useful in the production of the block copolycarbonates of this invention. This invention also contemplates a novel method for reducing the extent of annealing time normally required for the primary crystallization of a block copolycarbonate of this invention comprising including in the block copolycarbonate composition, prior to primary crystallization, a nucleating agent.

    Lactam polymerization with halogen substituted aromatic initiators
    8.
    发明授权
    Lactam polymerization with halogen substituted aromatic initiators 失效
    用卤素取代的芳族化合物进行LACTAM聚合

    公开(公告)号:US3813367A

    公开(公告)日:1974-05-28

    申请号:US86548769

    申请日:1969-10-10

    发明人: MATZNER M MCGRATH J

    IPC分类号: C08G69/00 C08G69/20 C08G20/18

    CPC分类号: C08G69/20

    摘要: CERTAIN HALOGEN AROMATIC COMPOUNDS ARE UTILIZED AS POLYMERIZATION INITATORS OR ACTIVATORS WITH ALKALINE CATALYSTS IN THE ANIONIC POLYMERIZATION OF LACTAM MONOMERS TO PROVIDE LONG POT LIFE, A RAPID POLYMERIZATION AND NOVEL POLYMERS. THE INITIATORS ARE COMPOUNDS CONTAINING AT LEAST ONE CARBOCYCLIC AROMATIC RING SUBSTITUTED WITH AT LEAST ONE HALOGEN ATOM WHICH HAS BEEN ACTIVATED TOWARDS NUCLEOPHILIC SUBSTITUTION.

    Lactam-vinyl block copolymers
    9.
    发明授权
    Lactam-vinyl block copolymers 失效
    LACTAM-VINYL嵌段共聚物

    公开(公告)号:US3770849A

    公开(公告)日:1973-11-06

    申请号:US3770849D

    申请日:1971-02-01

    IPC分类号: C08G69/20 C08G41/04

    CPC分类号: C08G69/20

    摘要: BLOCK COPOLYMERS ARE PREPARED FROM LACTAM MONOMER AND VINYL POLYMER HAVING THE STRUCTURE

    T-(C(-X1)(-X3)-C(-X2)(-X4))M-T''

    WHEREIN X1, X2, X3 AND X4 ARE SELECTED SUBSTITUENT GROUPS, T AND T ARE SELECTED TERMINAL GROUP AND M IS A WHOLE NUMBER OF ABOUT 16 100.000. THE POLYMERS ARE PREPARED IN A LACTAM ANIONIC POLYUMERIZATION REACTION USING AN ALKALINE CATALYST AND THE VINYL POLYMER AS AN ACTIVATOR OR INITIATOR.