PROCESS FOR EMULSION POLYMERIZATION
    46.
    发明公开
    PROCESS FOR EMULSION POLYMERIZATION 有权
    乳液聚合过程

    公开(公告)号:EP2864367A1

    公开(公告)日:2015-04-29

    申请号:EP13727906.3

    申请日:2013-06-11

    CPC classification number: C08F2/44 B01F17/0021 C08F2/24 C08F2/30

    Abstract: Process for polymerizing at least one monomer under emulsion polymerization conditions, characterized in that the (co)monomers are selected from vinyl aromatic compounds, ethylenically unsaturated carboxylic acids with 3 to 10 carbon atoms, C
    1 -C
    10 -alkyl esters of ethylenically unsaturated carboxylic acids with 3 to 10 carbon atoms, 1,3-butadiene, and a-olefins bearing in the range of from 10 to 250 carbon atoms per molecule, in pure form or as mixture with isomers, and using a surfactant mixture comprising (A) an alkoxylation product of at least one alkanol (a), characterized in that alkanol (a) has 6 to 12 carbon atoms per molecule and the average number of alkylene oxide units per molecule in alkoxylation product (A) assumes a value in the range of from 35 to 55, the alkylene oxide units are selected from C
    2 -C
    10 -alkylene oxide units and alkanol (a) has an average degree of branching of at least 1; and (B) an alkoxylation product of at least one alkanol (b), characterized in that alkanol (b) has 13 to 19 carbon atoms per molecule and the average number of alkylene oxide units per molecule in alkoxylation product (B) assumes a value in the range of from 35 to 55, the alkylene oxide units are selected from C
    2 -C
    10 -alkylene oxide units, or (C) an alkoxylation product of at least one linear C
    12 -C
    22 -alkyl alcohol (c), characterized in that the average number of alkylene oxide units per molecule in alkoxylation product (C) assumes a value in the range of from 35 to 55, the alkylene oxide units are selected from C
    2 -C
    10 -alkylene oxide units.

    MIKROKAPSELDISPERSION ENTHALTEND MIKROKAPSELN MIT EINEM HYDROPHILEM KAPSELKERN
    50.
    发明公开
    MIKROKAPSELDISPERSION ENTHALTEND MIKROKAPSELN MIT EINEM HYDROPHILEM KAPSELKERN 有权
    微胶囊分散液含有微小胶囊具有亲水性囊芯

    公开(公告)号:EP2794085A2

    公开(公告)日:2014-10-29

    申请号:EP12791503.1

    申请日:2012-11-29

    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 C
    1 -C
    24 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.

Patent Agency Ranking