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
    • 3. 发明授权
    • Process for the production of 2-pyrrolidone
    • 2-吡咯烷酮生产方法
    • US4151171A
    • 1979-04-24
    • US914107
    • 1978-06-09
    • Victor P. Kurkov
    • Victor P. Kurkov
    • C07D207/26C07D207/263C07D207/00
    • C07D207/27
    • A process for producing N-acyl-2-pyrrolidone which comprises a contacting N-acyl allylamine with carbon monoxide in the presence of an aliphatic carboxylic acid solvent and a homogeneous catalyst of palladium or platinum coordinated with triphenylphosphine. According to a preferred embodiment, the acyl group is removed from the N-acyl-2-pyrrolidone by contacting and heating the N-acyl-2-pyrrolidone with allylamine to thereby effect transacylation and obtain product 2-pyrrolidone and N-acyl-allylamine as a recycle feed stream. Alternatively, N-acyl-2-pyrrolidone can be hydrolyzed to 2-pyrrolidone and the carboxylic acid derived from the acyl group.
    • N-酰基-2-吡咯烷酮的制备方法,其包括在脂族羧酸溶剂和与三苯基膦配位的钯或铂的均相催化剂存在下,使N-酰基烯丙胺与一氧化碳接触。 根据优选的实施方案,通过N-酰基-2-吡咯烷酮与烯丙胺的接触和加热将酰基从N-酰基-2-吡咯烷酮中除去,从而进行转酰胺化,得到2-吡咯烷酮和N-酰基 - 烯丙胺 作为再循环进料流。 或者,N-酰基-2-吡咯烷酮可以水解成2-吡咯烷酮和衍生自酰基的羧酸。
    • 10. 发明授权
    • Continuous process for the aminolysis of ethylene copolymers
    • 乙烯共聚物氨基分解的连续方法
    • US5498785A
    • 1996-03-12
    • US181027
    • 1994-01-14
    • James H. WangVictor P. KurkovLeslie P. TheardDavid Rosendale
    • James H. WangVictor P. KurkovLeslie P. TheardDavid Rosendale
    • C08F8/32
    • C08F8/32C08F2800/20
    • A continuous process for the aminolysis of polymers produced from ethylenically unsaturated structural units comprising contacting, in a reaction vessel,(a) a molten polymer containing structural units produced from alpha-olefins having from 2 to 8 carbons atoms, and esters of of .alpha.,.beta.-ethylenically-unsaturated carboxylic acids in a reaction vessel; and(b) a liquid phase comprising an amine-containing compound, e.g., an alkylamine having an alkyl group containing 1-30 carbon atoms, ammonia, or derivatives thereof, in the presence of(c) a catalytically effective amount of a catalyst, which is preferably a metal-containing solution, for a period of time effective to produce a polymer containing acrylamide structural units, wherein the period of time is less than about 1 hour.This process is performed continuously in a reaction vessel, preferably in at least one reactive extruder, under conditions effective to provide an ethylene co-polymer containing acrylamide structural units.
    • 用于由烯属不饱和结构单元生产的聚合物的氨解的连续方法包括在反应容器中使(a)含有由具有2至8个碳原子的α-烯烃制成的结构单元的熔融聚合物和α, β-烯属不饱和羧酸在反应容器中; 和(b)在(c)催化有效量的催化剂的存在下,包含含胺化合物,例如具有含有1-30个碳原子的烷基的烷基胺,氨或其衍生物的液相, 其优选为含金属溶液,持续一段时间有效地制备含有丙烯酰胺结构单元的聚合物,其中所述时间段小于约1小时。 在有效提供含有丙烯酰胺结构单元的乙烯共聚物的条件下,在反应容器中优选在至少一个反应性挤出机中连续进行该方法。