PROCESS FOR THE PREPARATION OF ESTERS OF (METH)-ACRYLIC ACID, AND THEIR USE

    公开(公告)号:DE3476535D1

    公开(公告)日:1989-03-09

    申请号:DE3476535

    申请日:1984-04-30

    Applicant: BASF AG

    Abstract: 1. A process for preparing an ester of acrylic or methacrylic acid with a hydroxyl-containing organic compound, which comprises esterifying a saturated polyester which contains no fewer than 2 free hydroxyl groups per molecule and may contain ether groups or a saturated polyether which contains no fewer than 2 free hydroxyl groups per molecule, this polyester or polyether having an average molecular weight ~Mn of from 400 to 4,000, with from 100 to 150 mol %, based on the OH groups of the polyester or polyether, of acrylic acid or methacrylic acid in the presence of an acidic esterification catalyst and one or more hydrocarbons forming an azeotropic mixture with water and a small amount of a polymerization inhibitor at elevated temperature with azeotropic removal of the resulting water, after the esterification removing the hydrocarbon by distillation and after neutralization of the esterification catalyst reacting the remaining acrylic or methacrylic acid with an amount, equivalent to the acid number, of an epoxy compound having no fewer than two epoxy groups per molecule until an acid number =

    PHOTOPOLYMERISABLE BLENDS CONTAINING TERTIARY AMINES AS PHOTOACTIVATORS

    公开(公告)号:DE3463272D1

    公开(公告)日:1987-05-27

    申请号:DE3463272

    申请日:1984-08-22

    Applicant: BASF AG

    Abstract: Photopolymerizable mixtures comprising one or more photopolymerizable, olefinically unsaturated compounds and one or more photoinitiators or photosensitizers, with or without other conventional additives and/or assistants, contain, as an activator, a tertiary amine of the general formula (I) (I) wherein R1 and R2 are each an unsubstituted alkyl, cycloalkyl or phenyl radical, hydroxyl or alkoxy, or R1 and R2 are bonded together to form a cyclic alkylene radical, R3 has the same meanings as R1 or R2 and may furthermore be hydrogen, acyloxy or substituted benzoyloxy, and R4 and R5 are each an unsubstituted or substituted alkyl, cycloalkyl or phenyl radical, or R4 and R5 are bonded together to form a cyclic alkylene or alkyleneoxyalkylene radical.

    8.
    发明专利
    未知

    公开(公告)号:DE3316593A1

    公开(公告)日:1984-11-08

    申请号:DE3316593

    申请日:1983-05-06

    Applicant: BASF AG

    Abstract: 1. A process for preparing an ester of acrylic or methacrylic acid with a hydroxyl-containing organic compound, which comprises esterifying a saturated polyester which contains no fewer than 2 free hydroxyl groups per molecule and may contain ether groups or a saturated polyether which contains no fewer than 2 free hydroxyl groups per molecule, this polyester or polyether having an average molecular weight ~Mn of from 400 to 4,000, with from 100 to 150 mol %, based on the OH groups of the polyester or polyether, of acrylic acid or methacrylic acid in the presence of an acidic esterification catalyst and one or more hydrocarbons forming an azeotropic mixture with water and a small amount of a polymerization inhibitor at elevated temperature with azeotropic removal of the resulting water, after the esterification removing the hydrocarbon by distillation and after neutralization of the esterification catalyst reacting the remaining acrylic or methacrylic acid with an amount, equivalent to the acid number, of an epoxy compound having no fewer than two epoxy groups per molecule until an acid number =

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