PRODUCTION OF (METH)ACRYLIC ESTER

    公开(公告)号:JP2001026569A

    公开(公告)日:2001-01-30

    申请号:JP2000187845

    申请日:2000-06-22

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for easily producing a (meth)acrylic ester by which a light color esterification product is obtained in high yield. SOLUTION: This method for producing a (meth)acrylic ester comprises esterifying acrylic acid and/or methacrylic acid with at least one compound having at least one alcoholic hydroxyl group while adding to the reaction system a hydrocarbon with a boiling point of 60-140 deg.C as a water azeotropic agent at 90-150 deg.C in the presence of an acidic esterification catalyst and a polymerization inhibitor, and after esterification, distilling the water azeotropic agent and excess (meth)acrylic acid off at 90-150 deg.C under a normal or reduced pressure, and if necessary, neutralizing the product obtained after distillation with at least one basic inorganic compound, wherein a copper (II) salt or a mixture composed of the copper (II) salt and a copper (I) salt to be deposited after esterification as a copper sulfide and separated is used as the polymerization inhibitor.

    8.
    发明专利
    未知

    公开(公告)号:DE50111059D1

    公开(公告)日:2006-11-02

    申请号:DE50111059

    申请日:2001-12-11

    Applicant: BASF AG

    Abstract: A curable aqueous polymer dispersion is prepared by: I) reacting a (meth)acrylate polymer A) that carries ethylenically unsaturated groups and functional groups capable of a condensation or addition reaction, with at least one compound B) which Ia) carries at least one functional group that is complementary to the functional groups of the copolymer A) that are capable of undergoing a condensation or addition reaction, and additionally at least one ionogenic, ionic group or a combination thereof, or which Ib) carries at least one functional groups that is complementary to the functional groups of the copolymer A) that are capable of condensation or addition reaction and is capable of forming an ionogenic or ionic group in a condensation or addition reaction, to give a copolymer AI) which carriers ethylenically unsaturated groups and ionogenic groups, ionic groups or a combination thereof, II) with the proviso that when the ionogenic groups are present in compound B), converting at least some of the ionogenic groups of the copolymer AI) into ionic groups, and III) dispersing the copolymer AI) in an aqueous dispersion medium.

    10.
    发明专利
    未知

    公开(公告)号:DE50009705D1

    公开(公告)日:2005-04-14

    申请号:DE50009705

    申请日:2000-07-19

    Applicant: BASF AG

    Abstract: (Meth)acrylate prepolymers (B) with a water-dilutability of at least 5 wt% water are used in aqueous dispersions with essentially no protective colloids or emulsifiers, containing (A) polyurethanes with hydrophilic groups and essentially no C-C double bonds and (B) prepolymers as defined, with 0.1-1 mol radically polymerizable double bonds/100 g

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