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    Curing polyepoxides with mixed catalysts
    2.
    发明授权
    Curing polyepoxides with mixed catalysts 失效
    用混合催化剂固化多羟基化合物

    公开(公告)号：US3578632A

    公开(公告)日：1971-05-11

    申请号：US3578632D

    申请日：1968-08-08

    Applicant: HOECHST AG

    Inventor： KUHLKAMP ALFRED ,  FISCHER EDGAR ,  NOLKEN ERNST

    IPC: C08G59/40 ,  C08G30/10

    CPC classification number: C08G59/4071

    Abstract: LIQUID POLYEPOXIDES OR SOLVENT SOLUTIONS OF SOLID POLYEPOXIDES HAVING 2 TO 10 EPOXY GROUPS AND PREFERABLY EPOXIDE EQUIVALENTS OF 100 TO 300 ARE CURED WITHOUT APPLICATION OF EXTERNAL HEAT BY MIXING THEM WITH A CATALYST SYSTEM CONSISTING ESSENTIALLY OF A MIXTURE OF A LEWIS ACID AND A PHOSPHORUS COMPOUND OF THE FORMULA

    R-P(=O)(-OH)2 OR R''-O-P(=O)(-OH)2

    IN WHICH R AND R'' REPRESENT ALKYL, ARYL, CYCLOALKYL, ALKYLARYL, ARALKYL, ALKOXYALKYL, ALKOXYARYL, HYDROXYALKYL. HYDROXYARYL, HYDROXYARALKYL OR ALKENYL. EPOXIDE RESINS ARE THUS OBTAINED BY A ROOM TEMPERATURE CURE WHICH EXHIBIT GOOD RESISTANCE TO ALKALIES. THE PRODUCTS MAY BE USED FOR MAKING GLASS FIBER REINFORCED ARTICLES AND FOR COATING SUCH MATERIALS AS PAPER, METALS, WOOD, TEXTILES AND PLASTICS.

    Process of making an epoxide resin cellular plastic
    4.
    发明授权
    Process of making an epoxide resin cellular plastic 失效
    制备环氧树脂细胞纤维素的方法

    公开(公告)号：US3634343A

    公开(公告)日：1972-01-11

    申请号：US3634343D

    申请日：1968-08-08

    Applicant: HOECHST AG

    Inventor： KUHLKAMP ALFRED ,  FISCHER EDGAR ,  NOLKEN ERNST

    IPC: C08J9/14 ,  C08F47/10 ,  C08J1/26

    CPC classification number: C08J9/141 ,  C08J9/143 ,  C08J2363/00

    Abstract: IN WHICH R AND R'' EACH REPRESENTS AN ALKYL, ARYL, CYCLOALKYL, ALKYLARYL, ARALKYL, ALKOXYALKYL, ALKOXYARYL, OXALKYL, ORARYL, OR ALKENYL GROUP IN THE PRESENCE OF INERT LIQUID BLOWING AGNETS AND CELL REGULATORS. THE CELLULAR PLASTICS OBTAINED HAVE UNIFORM CELLS AND NO CRACKS IN THE INTERIOR.

    R-P(=O)(-OH)2 (I) OR R''-O-P(=O)(-OH)2 (II)

    PROCESS FOR THE MANUFACTURE OF CELLULAR PLASTICS BY CURING EPOXIDE RESINS WITH A MIXTURE OF LEWIS ACIDS WITH AT LEAST ONE PHOSPHORUS COMPOUND OF THE FORMULA

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