| 摘要 |
The present invention relates epoxy(meth)acrylates which are substantially free from epoxide groups and are the reaction products of organic compounds containing epoxide groups and having a number average molecular weight (Mn) of 130 to 1000 withI) compounds containing carboxyl and ester groups at an equivalent ratio of carboxyl groups to epoxide groups of 0.7:1.0 to 1.0:1.0, wherein compounds I) are reaction products ofA) organic dicarboxylic acids or dicarboxylic acid anhydrides having a molecular weight of 98 to 164 withB) reaction products containing alcoholic hydroxyl groups and prepared at a COOH/OH equivalent ratio of 0.6 to 0.95 froma) (meth)acrylic acid andb) tri- or tetrahydric ether alcohols having a molecular weight of 180 to 1000, which contain at least two ethylene oxide units -CH2-CH2-O- as part of one or more ether structures and which contain up to 20 mole %, based on the total moles of alkylene oxide units, of propylene oxide units, -CH2-CH (CH3)-O-, andII) basic nitrogen compounds selected from ammonia and (cyclo)aliphatic primary and secondary mines at an NH/epoxide equivalent ratio of 0:1.0 to 0.3:1.0.The present invention also relates to a process for preparing these epoxy(meth)acrylates and to their use in radically hardenable coating, putties or sealing compositions, or for the production of moldings.
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