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    • 2. 发明授权
    • Process for making water soluble polyvinylcaprolactam polymers
    • 制备水溶性聚己内酰胺聚合物的方法
    • US06369180B1
    • 2002-04-09
    • US09642545
    • 2000-08-18
    • Jenn S. ShihDonald I. PrettypaulJohn Mc KittrickDavid E. Graham
    • Jenn S. ShihDonald I. PrettypaulJohn Mc KittrickDavid E. Graham
    • C08J2608
    • C08F26/06C08F220/60
    • A process of making a homopolymer of vinyl caprolactam (VCL), and a copolymer with dimethylaminopropyl methacrylamide (DMAPMA), optionally including with one or more polymerizable monomers (X), in the composition range, by weight, VCL 99 to 30%, DMAPMA 1-70% and monomer X 0-30%, respectively, by suspension polymerization in an aqueous/alcoholic solvent medium, without requiring a protective colloid, which comprises charging vinyl caprolactam in an aqueous/alcoholic solvent mixture, wherein the weight ratio of alcohol to total monomers is ⅙ to 3, and if present, forming a solution of DMAPMA and optional monomers in water, feeding the solution into the VCL charge at a predetermined rate, periodically adding initiator to the reaction mixture, and polymerizing at about 40° to 130° C., and, if desired, neutralizing the product, to form a polymer product at about 5% to 40% solids, homogeneously dispersed in the solvent.
    • 一种制备乙烯基己内酰胺(VCL)均聚物的方法,以及任选地包含一种或多种可聚合单体(X)的二甲基氨基丙基甲基丙烯酰胺(DMAPMA)的共聚物,其组成范围为VCL 99至30%,DMAPMA 1-70%和单体X 0-30%,通过在水/醇溶剂介质中的悬浮聚合,不需要保护胶体,其包括在乙醇/醇溶剂混合物中加入乙烯基己内酰胺,其中醇的重量比 至总单体为⅙至3,如果存在,则在水中形成DMAPMA和任选单体的溶液,以预定的速率将溶液进料到VCL装料中,周期性地向反应混合物中加入引发剂,并在约40° 130℃,如果需要,中和产物,形成约5%至40%固体的均匀分散在溶剂中的聚合物产物。
    • 5. 发明授权
    • Aquatic herbicidal diacylimide compositions
    • 水生除草二酰亚胺组合物
    • US4154594A
    • 1979-05-15
    • US930372
    • 1978-08-02
    • Louis SchneiderDavid E. Graham
    • Louis SchneiderDavid E. Graham
    • A01N37/26A01N9/20
    • A01N37/26
    • The invention provides broad spectrum herbicidal diacylimide compositions which include compounds having the formula: ##STR1## where R and R' are selected from alkyl, alkenyl, haloalkyl and haloalkenyl having from 1-5 carbon atoms, being the same or different groups.The compositions of this invention show excellent agricultural herbicidal activity, particularly against foxtail millet, Japanese millet, crabgrass and pigweed, and aquatic herbicidal activity against lower and higher submerged aquatic plants.The diacylimide compounds generally are prepared by reacting a suitable amide with an acyl halide. The acyl halide precursor may be prepared, if necessary, from the corresponding acid by reaction with a suitable halogenating agent, such as thionyl chloride. Similarly, a given amide may be readily prepared, for example, from the corresponding acyl halide by reaction with ammonia.
    • 本发明提供广谱除草二酰亚胺组合物,其包括具有下式的化合物:其中R和R'选自具有1-5个碳原子的烷基,烯基,卤代烷基和卤代烯基,为相同或不同的基团。