22.
    发明专利
    未知

    公开(公告)号:BRPI0710207A2

    公开(公告)日:2011-05-24

    申请号:BRPI0710207

    申请日:2007-03-30

    Applicant: BASF SE

    Abstract: The invention relates to a composition containing at least one piperidine compound of formula (I) as a stabiliser. In said formula (I) the variables R1, R2, R3, R4, R5, R6, R7, R8, Y and the index n have the meanings cited in claim 1 and the description. Said composition also comprises a polymer component and a colouring agent. The invention further relates to a method for producing pigment-containing polymer compositions and to the use of the compounds of formula (I) as dispersing auxiliary agents.

    PROCESS FOR PREPARING OLIGOMERS OF BUTENE DESCRIPTION

    公开(公告)号:MY166872A

    公开(公告)日:2018-07-24

    申请号:MYPI2014001284

    申请日:2012-10-25

    Applicant: BASF SE

    Abstract: A process for preparing oligomers by continuous oligomerization of butenes is described, wherein a) a feed stream (1) comprising I-butene and 2-butene in a total concentration of from 10 to 70% by weight and from 10 to 60% by weight of isobutane is reacted until more than 60% by weight of the I-butene comprised in the feed stream (1 ) but less than 50% by weight of the 2-butene comprised in feed stream (1) have been converted into oligomers. b) The oligomers obtained in a) are separated off and optionally passed to a further work-up and the remaining residual stream is fed to work-up by distillation. c) Isobutane is separated off by distillation from the residual stream, and d) the isobutane-depleted stream obtained after the work-up by distillation c) is reacted to form oligomers. (Sole Figure)

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