会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 15. 发明授权
    • Process for the continuous preparation of addition products of propylene oxide to carboxylic acids
    • 丙烯氧化物向羧酸的连续制备的方法
    • US3585225A
    • 1971-06-15
    • US3585225D
    • 1967-07-14
    • HENKEL & CIE GMBH
    • STEIN WERNERUMBACH WILFRIED
    • C11C3/00C11C3/10
    • C11C3/003
    • THIS INVENTION RELATES TO AN IMPROVED PROCESS FOR THE CONTINUOUS PRODUCTION OF ADDITION PRODUCTS OF PROPYLENE OXIDE WITH ORGANIC CARBOXYLIC ACIDS WHICH COMPRISES IN COMBINATION (A) CONTINUOUSLY PASSING A MIXTURE OF AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC CARBOXYLIC ACIDS FREE FROM REACTIVE HYDROGEN ATOMS OTHER THAN THE CARBOXYL HYDROGEN ATOM AND ADDITION PRODUCTS OF PROPYLENE OXIDE THEREOF, WITH PROPYLENE OXIDE IN A MOLAR RATIO OF 1:1 TO 1:6 IN THE PRESENCE OF FROM 0.05% TO 1.5% BY WEIGHT OF ALKALI METAL, BASED ON SAID ORGANIC COMPOUND, OF AN ALKALI METAL PROPYLOXYLATION CATALYST, THROUGH A JACKETED REACTOR HAVING A SMALL CROSS-SECTION COMPARED TO ITS LENGTH, UNDER A PRESSURE AT WHICH THE REACTION MIXTURE IS LIQUID, (B) HEATING SAID MIXTURE WHILE PASSING THROUGH SAID JACKETED REACTOR TO ATTAIN A MAXIMUM TEMPERATURE OF BETWEEN ABOUT 230*C. AND 390*C., (C) MAINTAINING SAID MIXTURE IN SAID JACKETED REACTOR FOR ABOUT 10 TO 150 SECONDS, WHEREBY AN ADDITION PRODUCT IS FORMED, (D) IMMEDIATELY COOLING SAID ADDITION PRODUCT TO A TEMPERATURE BELOW 180*C. AFTER SAID ADDITION PRODUCT LEAVES SAID JACKETED REACTOR, AND (E) RECOVERING SAID ADDITION PRODUCT. MORE PARTICULARLY, THE INVENTION RELATES TO THE PREPARATION OF PRODUCTS WITH A HIGH CONTENT OF PROPYLENEGLYCOL-1,2 CARBOXYLIC MONOESTERS IN HIGH VOLUME-TIME-YIELDS.
    • 19. 发明授权
    • Process for producing hydroxyalkyl mercaptans
    • 生产羟基甘油酯的方法
    • US3662004A
    • 1972-05-09
    • US3662004D
    • 1969-10-02
    • HENKEL & CIE GMBH
    • UMBACH WILFRIEDMEHREN RAINERSTEIN WERNER
    • C08K5/37C07C149/18
    • C07C323/00C08K5/37Y10S516/01C08L21/00
    • PROCESSES OF REACTING HYDROGEN SULFIDE WITH A MONO OR POLY, TERMINAL OR NON-TERMINAL, ALIPHATIC OR CYCLOALIPHATIC EPOXIDES HAVING MORE THAN 3 CARBON ATOMS IN THE PRESENCE OF 0.01% TO 10% BY WEIGHT OF A STRONGLY BASIC CATALYST IN THE TEMPERATURE RANGE OF FROM -20*C. TO 200*C. AT NORMAL TO ELEVATED PRESSURES IN ORDER TO OBTAIN A HYDROXYALKYL MERCAPTAN CONTAINING MORE THAN 3 CARBON ATOMS. THE NOVEL PRODUCTS ARE HIGHER MOLECULAR WEIGHT HYDROXYALKYL MERCAPTANS OF THE FORMULA

      R1-C(-R2)(-OH)-CH(-R3)-SH

      WHEREIN R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYL HAVING FROM 1 TO 22 CARBON ATOMS, ALKYLOL HAVING FROM 1 TO 22 CARBON ATOMS, ALKOXYALKYL HAVING FROM 2 TO 22 CARBON ATOMS, HALOALKYL HAVING FROM 1 TO 22 CARBON ATOMS, CYCLOALKYLALKYL HAVING FROM 6 TO 22 CARBON ATOMS AND ALKENYL HAVING FROM 3 TO 22 CARBON, R2 AND R3 ARE MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND R1 AND, WHEN TAKEN TOGETHER, ALKYLENE HAVING FROM 3 TO 4 CARBON ATOMS, WITH THE PROVISO THAT THE SUM OF THE CARBON ATOMS IN R1, R2 AND R3 IS FROM 6 TO 22. THE NOVEL HYDROXYALKYL MERCAPTANS ARE USEFUL AS INSECTICIDES AND FUNGICIDES, EMULSIFIERS AND INTERMEDIATES IN CHEMICAL SYNTHESIS.