MICROCAPSULE DISPERSION CONTAINING MICROCAPSULES HAVING A HYDROPHILIC CAPSULE CORE

    公开(公告)号:CA2856785A1

    公开(公告)日:2013-06-27

    申请号:CA2856785

    申请日:2012-11-29

    Applicant: BASF SE

    Abstract: The invention relates to microcapsule dispersions containing microcapsules comprising a hydrophilic capsule core and a capsule wall polymer, which capsule wall polymer can be obtained by polymerizing a monomer composition comprising 25 to 95 wt% of one or more C1-C24 alkyl and/or glycidyl esters of acrylic acid and/or methacrylic acid, up to 75 wt% of one or more hydrophilic monomers selected from acrylic acid esters and/or methacrylic acid esters that bear hydroxy and/or carboxy groups, and allyl gluconamide, 0 to 40 wt% of one or more compounds having two or more ethylenically unsaturated groups, wherein the microcapsules are dispersed in a hydrophobic diluent. The invention further relates to the microcapsules, to a method for producing the microcapsules, and to the use of the microcapsules for the delayed release of active ingredients for construction, cosmetic, or plant-protection applications.

    METHOD FOR THE CONTINUOUS PRODUCTION OF POLYISOBUTYLENE

    公开(公告)号:SG10201605034SA

    公开(公告)日:2016-08-30

    申请号:SG10201605034S

    申请日:2013-01-04

    Applicant: BASF SE

    Abstract: Continuous production of polyisobutylene having a content of terminal double bonds of greater than 50% by polymerization of isobutene in the presence of a polymerization catalyst usual therefor, by combining a technical 1-butene-, 2-butene- and isobutene-containing C4 hydrocarbon stream together with a stream of pure isobutene, and feeding the combined stream into the reaction zone in such a manner that the steady state concentration of isobutene in the combined stream at the point where the combined stream is fed into the reaction zone has a value of on average at least 40% by weight, and the invention also relates to a polymerization system therefor.

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