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30 条记录 (耗时 0.01 秒)

    Process of making an epoxide resin cellular plastic
    6.
    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

    申请人： HOECHST AG

    发明人： KUHLKAMP ALFRED ,  FISCHER EDGAR ,  NOLKEN ERNST

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

    CPC分类号： C08J9/141 ,  C08J9/143 ,  C08J2363/00

    摘要： 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

    Polyoxymethylene polymers having reduced melt indices
    7.
    发明授权
    Polyoxymethylene polymers having reduced melt indices 失效
    具有减少熔融指数的聚甲基乙烯聚合物

    公开(公告)号：US3627850A

    公开(公告)日：1971-12-14

    申请号：US3627850D

    申请日：1970-02-09

    申请人： HOECHST AG

    发明人： HAFNER KARL-HEINZ ,  FISCHER EDGAR

    IPC分类号： C07C17/25 ,  C08G2/00 ,  C08L59/00 ,  C08L59/02 ,  C08G37/04

    CPC分类号： C08G4/00 ,  C08G2/06 ,  C08G2/22 ,  C08L59/00 ,  C08L59/02 ,  C08L59/04 ,  C08L2666/16

    摘要： The melt indices of polyformaldehyde having stabilized terminal groups or copolymers of formaldehyde or trioxane with cyclic ethers are reduced by adding a copolymer of trioxane containing carboxylate groups. The carboxylate-containing polymers may be prepared by copolymerizing trioxane and optionally cyclic ethers with p-glycidyl benzoic acid esters and then saponifying the esters groups. The metal of the carboxylate group is selected from metals of the first two groups of the Periodic Table. By incorporating from 1 to 50 percent by weight of the carboxylatecontaining polymers in conventional polyoxymethylene polymers, the melt indices thereof are substantially reduced.

    Process for cross-linking polyacetal copolymers with hydrozine or dicarboxylic acid hydrazides and product produced thereby
    9.
    发明授权
    Process for cross-linking polyacetal copolymers with hydrozine or dicarboxylic acid hydrazides and product produced thereby 失效
    用氢氯化物或二羧酸水合物交联聚合物共聚物的方法和生产的产品

    公开(公告)号：US3563955A

    公开(公告)日：1971-02-16

    申请号：US3563955D

    申请日：1969-01-07

    申请人： HOECHST AG

    发明人： HAFNER KARL-HEINZ ,  FISCHER EDGAR

    IPC分类号： C08G2/18 ,  C08G2/30 ,  C08G9/04 ,  C08G9/06

    CPC分类号： C08G2/30 ,  C08G2/18

    摘要： A PROCESS FOR CROSS-LINKING POLYOXYALKYLENE COPOLYMERS HAVING PENDANT FREE ALDEHYDE GROUPS SPACED ALONG THE POLYMER CHAIN THEREOF WITH HYDRAZINE OR A DICARBOXYLIC ACID HYDRIZIDE OF THE FORMULA

    H2N-NH-CO-R-CO-NH-NH2

    WHEREIN R STANDS FOR AN ALKYLENE RADICAL OF 1 TO 20 CARBON ATOMS, A PHENYLENE OR NAPHTHYLENE RADICAL WHICH IS SUBSTITUTED BY (A)X AND/OR (B)Y, A BEING AN ALKYL GROUP OF 1 TO 6 CARBON ATOMS, X BEING 0 TO 4, Y BEING 0 TO 4 AND X+Y BEING SMALLER THAN 5, OR IN WHICH R STANDS, FOR A PHENYLENE AND/OR NAPHTHYLENE RADICAL WHICH IS OR ARE INTERRUPTED BY A SATURATED AND/OR UNSATURATED HYDROCARBON RAIDCAL WITH 1 TO 10 CARBON ATOMS, OR IN WHICH R IS A CYCLOALIPHATIC RADICAL OF 4 TO 7 CARBON ATOMS WHICH IS SUBSTITUTED BY (D)A AND/OR (E)B AND/OR (F)C, D BEING AN ALKYL GROUP OF 1 TO 6 CARBON ATOMS, E BEING AN ALKOXY GROUP OF 1 TO 6 CARBON ATOMS AND F BEING A PHENYL RADICAL, AND A BEING 0 TO 5, B BEING 0 TO 5 AND C BEING 0 TO 2, OR IN WHICH R IS A POLYACRYLIC ACID RADICAL. REPRESENTATIVE DICARBOXYLIC ACID DIHYDRAZIDES ARE ADIPIC ACID BISHYDRAZIDE, SEBACIC ACID BISHYDRAZIDE, POLYACRYLIC ACID HYDRAZIDE AND TEREPHTHALIC ACID BISHYDRAZIDE. THE CROSS-LINKING AGENT MAY BE USED TO THE EXTENT OF 0.01 TO 50% BY WEIGHT, BASED ON THE WEIGHT OF THE UNCROSS-LIKED POLYMER. BY USING SUCH CROSS-LINKING AGENTS, GOOD CONTROL OF MOLECULAR WEIGHT AND CONSEQUENTLY OF THE FLOW PROPERTIES OF THE CROSS-LINKED COPOLYMER ARE OBTAINED. THE CROSSLINKED POLYMERS ARE ALSO CLAIMED.