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12 条记录 (耗时 0.011 秒)

    Process for producing saturated carboxylic acids
    1.
    发明授权
    Process for producing saturated carboxylic acids 失效
    生产饱和羧酸的方法

    公开(公告)号：US3553188A

    公开(公告)日：1971-01-05

    申请号：US3553188D

    申请日：1968-08-19

    申请人： WACKER CHEMIE GMBH

    发明人： HECKMAIER JOSEPH ,  KUNSTLE GERHARD

    IPC分类号： C07C51/09 ,  C08H17/36

    CPC分类号： C07C51/09 ,  C07C53/124 ,  C07C57/30

    摘要： PROCESS FOR PRODUCING SATURATED CARBOXYLIC ACIDS BY THE CATALYTIC HYDROGENATION OF LOW-POLYMERIC PRODUCTS WHICH ARE FORMED DURING THE REACTION OF KETENE WITH KETONES WITH 3 TO 6 CARBON ATOMS OR ALDEHYDES WITH 1 TO 18, PREFERABLY 3 TO 8 CARBON ATOMS, WHICH COMPRISES HEATING THE RAW CATALYST-CONTAINING LOW-POLYMERIC PRODUCT IN A REACTION ZONE IN THE PRESENCE OF A RANEY NICKEL HYDROGENATION CATALYST AT NORMAL PRESSURE AND IN THE LIQUID PHASE AT A GRADUALLY INCREASING RECTION TEMPERATURE WITHIN A RANGE FROM 50 TO 250*C., WHILE CIRCULATING AN EXCESS QUANTITY OF DRY HYDROGEN THROUGH SAID REACTION ZONE.

    Dispersion polymerized terpolymer of vinyl acetate, vinyl ester of a fatty acid, and vinyl chloride
    4.
    发明授权
    Dispersion polymerized terpolymer of vinyl acetate, vinyl ester of a fatty acid, and vinyl chloride 失效
    醋酸乙烯酯的分散聚合的叔丁醇，脂肪酸的乙烯酯和氯乙烯

    公开(公告)号：US3668165A

    公开(公告)日：1972-06-06

    申请号：US3668165D

    申请日：1970-09-11

    申请人： WACKER CHEMIE GMBH

    发明人： BERGMEISTER EDUARD ,  HECKMAIER JOSEPH ,  KIRST PAUL-GERHARD ,  WEST HUBERT

    IPC分类号： C08F2/18 ,  C08F2/22 ,  C08F18/04 ,  C08F218/08 ,  C08F15/40

    CPC分类号： C08F218/08 ,  C08F18/04

    摘要： This invention relates to a process for the preparation of an aqueous polymerizate dispersion which comprises the steps of subjecting 100 parts by weight of a monomer mixture consisting of: (a) 40 to 70 parts by weight of vinyl acetate, (b) 15 to 30 parts by weight of a vinyl ester of fatty acids having eight to 18 carbon atoms and (c) 15 to 30 parts by weight of vinylchloride to an aqueous dispersion polymerization in the presence of (1) free-radical forming catalysts, (2) at least one protective colloid and (3) an emulsifier selected from the group consisting of anionic emulsifiers, non-ionic emulsifiers and mixtures thereof, and recovering said aqueous polymerizate dispersion, as well as the aqueous polymerizate dispersions so produced.

    摘要翻译： 本发明涉及一种制备聚合水分散体的方法，该方法包括以下步骤：使100重量份由以下组分组成的单体混合物：（a）40至70重量份的乙酸乙烯酯，（b）15至30 重量份具有8至18个碳原子的脂肪酸的乙烯基酯和（c）15至30重量份的氯乙烯与在（1）自由基形成催化剂存在下的水分散体聚合反应，（2）在 至少一种保护胶体和（3）选自阴离子乳化剂，非离子乳化剂及其混合物的乳化剂，以及回收所述聚合物水分散体以及如此制备的聚合水分散体。

    Process for polymerizing and copolymerizing vinyl chloride in aqueous emulsions
    8.
    发明授权
    Process for polymerizing and copolymerizing vinyl chloride in aqueous emulsions 失效
    在乳液中聚合和共聚氯乙烯的方法

    公开(公告)号：US3632562A

    公开(公告)日：1972-01-04

    申请号：US3632562D

    申请日：1967-07-07

    申请人： WACKER CHEMIE GMBH

    发明人： BEIER GERHARD ,  HECKMAIER JOSEPH ,  BAUER JOHANN

    IPC分类号： C08F2/22 ,  C08F259/04 ,  C08F1/13 ,  C08F3/30

    CPC分类号： C08F259/04 ,  C08F214/06

    摘要： THIS INVENTION RELATES TO POLYMERIZING AND COPOLYMERIZING VINYL CHLORIDE, IN AQUEOUS EMULSIONS, AND IT HAS FOR ITS OBJECT TO PROVIDE A NOVEL AND IMPROVED PROCESS FOR THIS PURPOSE. IN PARTICULAR, THE INVENTION CONCERNS THE MAKING OF PASTABLE POLYMERIZATES OF VINYL CHLORIDE OR OF PASTABLE COPOLYMERIZATES CONTAINING AT LEAST 80 WEIGHT PERCENT OF POLYVINYL CHLORIDE, I.E. OF VINYL CHLORIDE POLYMERIZATES OR VINYL CHLORIDE COPOLYMERIAZTES WHICH CAN BE DISPERSED IN SOFTENERS, PERHAPS USING AT THE SAME TIME ORGANIC THINNERS WHICH EITHER DO NOT DISSOLVE OR SWELL THE POLYMERIZATES AT ALL OR ONLY A LITTLE, FORMING PASTES OR PLATISOLS OR ORGANOSOLS, BY POLYMERIZING OR COPOLYMERIZING THE VINYL CHLORIDE IN AN AQUEOUS EMULSION, I.E. BY THE POLYMERIZATION OR COPOLYMERIZATION OF VINYL CHLORIDE WHICH IS DISPERSED IN WATER BY MEANS OF EMULSIFIERS.

    Process for polymerizing and copolymerizing vinyl chloride in aqueous emulsions
    9.
    发明授权
    Process for polymerizing and copolymerizing vinyl chloride in aqueous emulsions 失效
    在乳液中聚合和共聚氯乙烯的方法

    公开(公告)号：US3624051A

    公开(公告)日：1971-11-30

    申请号：US3624051D

    申请日：1968-08-23

    申请人： WACKER CHEMIE GMBH

    发明人： BAUER JOHANN ,  BEIER GERHARD ,  HECKMAIER JOSEPH

    IPC分类号： C08F259/04 ,  C08F3/30 ,  C08F1/13

    CPC分类号： C08F259/04 ,  C08F214/06

    摘要： This invention relates to a process for making pastable polymerizates of vinyl chloride or of pastable copolymerizates containing at least 80 weight percent polyvinyl chloride, by polymerizing or copolymerizing vinyl chloride in aqueous emulsion, that is by polymerization or copolymerization of vinyl chloride which is dispersed in water by means of emulsifiers. The process is performed in the presence of water-soluble salts of aliphatic branched saturated monocarboxylic acids containing CH2- groups in the alpha position to the carboxyl groups, with at least 8 carbon atoms per molecule, as emulsifiers. The term ''''pastable'''' polymerizates or copolymerizates'''' means that the polymerizates or copolymerizates can be dispersed in the known manner in plasticizers, if desired by also using organic thinners which dissolve or swell the polymerizates or copolymerizates not at all or only a little, during the formation of pastes or plastisols or organosols.