Preparation of 2-pyrrolidinone
    4.
    发明授权
    Preparation of 2-pyrrolidinone 失效
    2-吡咯烷酮的制备

    公开(公告)号:US3681387A

    公开(公告)日:1972-08-01

    申请号:US3681387D

    申请日:1970-10-16

    Applicant: SUN OIL CO

    CPC classification number: C07D201/02 C07D201/08

    Abstract: An improved process for preparing 2-pyrrolidinone at relatively low pressures which comprises reduction of succinimide in an aqueous system at temperatures of about 225* to 275* C., at a pressure in the range of about 1,200 to 1,500 p.s.i.g. and in the presence of a supported palladium catalyst.

    Abstract translation: 一种用于在相对低的压力下制备2-吡咯烷酮的改进方法,其包括在约225-275℃的温度下在水性体系中还原琥珀酰亚胺,压力范围为约1,200至1,500p.s.i。 并在负载型钯催化剂存在下进行。

    Laminating wax composition
    6.
    发明授权
    Laminating wax composition 失效
    层压蜡组成

    公开(公告)号:US3907735A

    公开(公告)日:1975-09-23

    申请号:US6880170

    申请日:1970-09-01

    Applicant: SUN OIL CO

    CPC classification number: C08L91/08 Y10T428/31808 C08L53/00

    Abstract: Laminating wax compositions comprising petroleum wax containing 1 to 50 weight percent of solid atactic propyleneethylene terminal block copolymer.

    Abstract translation: 包含含有1-50重量%固体无规丙烯亚乙基嵌段共聚物的石油蜡的层压蜡组合物。

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