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    Process for making poly-alpha-oxyacrylic acid and its alkali metal salts
    14.
    发明授权
    Process for making poly-alpha-oxyacrylic acid and its alkali metal salts 失效
    制备聚-α-氧丙烯酸及其碱金属盐的方法

    公开(公告)号：US3890288A

    公开(公告)日：1975-06-17

    申请号：US48181474

    申请日：1974-06-21

    申请人： HOECHST AG

    发明人： VOGT WILHELM ,  FISCHER EDGAR ,  AUER EBERHARD

    IPC分类号： C09K3/00 ,  C08F8/00 ,  C08F8/12 ,  C08F8/26 ,  C08F20/22 ,  C11D3/37 ,  C08F3/44

    CPC分类号： C08F20/22 ,  C08F8/00 ,  C08F20/04

    摘要： Production of poly- Alpha -oxyacrylic acid by contacting a solution of Alpha -chloracrylic acid with one or more radicalyielding polymerization catalysts, heating and thereby hydrolyzing the resulting poly- Alpha -chloracrylic acid in queous solution with the resultant precipitation of solid polyAlpha -oxyacrylic acid and separating the poly- Alpha -oxyacrylic acid. More particularly, and aqueous Alpha -chloracrylic acid solution is contacted with the radical-yielding polymerization catalysts for a period of at least 30 minutes and, while leaving the resulting poly- Alpha -chloracrylic acid unseparated, it is heated for a period of at least 1 hour to temperatures within the range 80* and 110*C.

    摘要翻译： 通过使α-氯代丙烯酸溶液与一种或多种自由基产生的聚合催化剂接触来制备聚-α-氧代丙烯酸，加热，从而水解所得的聚α-氯代丙烯酸在聚氨酯溶液中， α-氧代丙烯酸和分离聚-α-氧代丙烯酸。 更具体地，和α-氯代丙烯酸水溶液与产生自由基的聚合催化剂接触至少30分钟，同时留下未分离的所得聚-α-氯代丙烯酸，将其加热至少一段时间 1小时至80℃和110℃的温度。

    Process for the manufacture of neutral polyphosphoric acid esters by reacting phosphorus pentoxide and boric acid esters
    15.
    发明授权
    Process for the manufacture of neutral polyphosphoric acid esters by reacting phosphorus pentoxide and boric acid esters 失效
    通过反应磷酸二氢铵和硼酸酯制备中性多磷酸酯的方法

    公开(公告)号：US3644596A

    公开(公告)日：1972-02-22

    申请号：US3644596D

    申请日：1969-04-14

    申请人： HOECHST AG

    发明人： KAMPE KLAUS-DIETER ,  FISCHER EDGAR

    IPC分类号： C07F9/09 ,  C07F9/06 ,  C07F5/04

    CPC分类号： C07F9/098

    摘要： A PROCESS HAS BEEN PROVIDED FOR PRODUCING NEUTRAL POLYPHOSPHORIC ACID ESTER DERIVATIVES WHICH COMPRISES REACTING AN ACID ESTER WITH PHOSPHORUS PENTOXIDE AT A TEMPERATURE WITHIN THE RANGE OF-78*C. TO - 140*C. IN THE ABSENCE OF MOISTURE AND IN A MOLE RATIO OF ESTER TO PHOSPHORUS PENTOXIDE FROM 0.05 TO 9 MOLES ESTER TO 1 MOLE PHOSPHORUS PENTOXIDE, SAID ACID ESTER BEING DEFINED BY THE GENERAL FORMULA

    (R'',MB-(OR)A

    R"M

    WHEREIN 1+M+N 3 IN WHICH FORMULA R REPRESENTS A SATURATED, UNSTARUATED, OXALKYLATED, OF HALOGENATED ALIPHATIC RADICAL OF 1 TO 12 CARBON ATOMS, OR AN AROMATIC RADICAL OF 1 TO 12 CARBON ATOMS. R! AND R" EACH REPRESENTS A HYDROGEN A SATURATED, UNSTAURATED, OXALKYLATED, OR HALOGENATED ALIPHATIC OR CYCLOALIPHATIC RADICAL OF 1 TO 12 CARBON ATOMS OR AN AROMATIC RADICAL OF 1 TO 12 CARBON ATOMS. THESE COMPOUNDS ARE USEFUL AS CATALYSTS FOR PRODUCTIN OF PLYACETALS.

    Process for the manufacture of neutral polyphosphoric acid esters from p2o5 and orthocarbonic acid esters
    16.
    发明授权
    Process for the manufacture of neutral polyphosphoric acid esters from p2o5 and orthocarbonic acid esters 失效
    从P2O5和邻氨基苯甲酸制备中性多磷酸酯的方法

    公开(公告)号：US3642956A

    公开(公告)日：1972-02-15

    申请号：US81728069

    申请日：1969-04-15

    申请人： KLAUS DIETER KAMPE ,  EDGAR FISCHER ,  HOECHST AG

    发明人： KAMPE KLAUS-DIETER ,  FISCHER EDGAR

    IPC分类号： C07F9/09 ,  C07F9/08 ,  C07F7/02

    CPC分类号： C07F9/098

    摘要： A PROCES HAS BEEN PROVIDED FOR PRODUCING NEUTRAL POLYPHOSPHORIC ACID ESTER DERIVATIVES WHICH COMPRISES REACTING AN ACID ESTER WITH PHOSPHORUS PENTOXIDE AT A TEMPERATURE WITHIN THE RANGE OF -78*C. TO +140*C., IN THE ABSENCE OF MOISTURE AN IN A MOLE RATION OF ESTER TO PHOSPHORUS PENTOXIDE FROM 0.02 TO 3 MOLES ESTER TO 1 MOLE PHOSPHORUS PENTOXIDE, SAID ACID ESTER BEING DEFINED BY TEH FORMULA

    (R'')M-C(OR)N

    WHEREIN M+N=4 IN WHICH FORMULA R REPRESENT A SATURATED, UNSTATURATED, OXALKYLATED, OR HALOGENETED ALIPHATIC RADICAL OF 1 TO 12 CARBON ATOMS, OR AN AROMATIC RADICAL OF 1 TO 12 CARBON ATOMS, AND R'' REPRESENTS A HYDROGEN, A SATURATED, UNSATURATED, OXYALKYLATED, OR HALOGENATED ALIPHATIC OR CYCLOALIPHATIC RADICAL OF 1 TO 12 CARBON ATOMS OR AN AROMATIC RADICAL OF 1 TO 12 CARBON ATOMS. THE COMPOUNDS ARE USEFUL AS CATALYSTS FOR THE PRODUCTION OF POLYACTEALS.