专利名称：Process for the preparation of esters of
(meth)-acrylic acid, and their use
发明人：SCHORNICK, GUNNAR, DR.,BUETHE, INGOLF,
DR.,JACOBI, MANFRED, DR.,LENZ, WERNER,DR.,LEHNERER, WOLFGANG, DR.
申请号：EP84104853.1申请日：19840430公开号：EP0126341A2公开日：19841128
摘要：1. A process for preparing an ester of acrylic or methacrylic acid with a hydroxyl-containing organic compound, which comprises esterifying a saturated polyester whichcontains no fewer than 2 free hydroxyl groups per molecule and may contain ethergroups or a saturated polyether which contains no fewer than 2 free hydroxyl groups permolecule, this polyester or polyether having an average molecular weight ~Mn of from400 to 4,000, with from 100 to 150 mol %, based on the OH groups of the polyester orpolyether, of acrylic acid or methacrylic acid in the presence of an acidic esterificationcatalyst and one or more hydrocarbons forming an azeotropic mixture with water and asmall amount of a polymerization inhibitor at elevated temperature with azeotropicremoval of the resulting water, after the esterification removing the hydrocarbon bydistillation and after neutralization of the esterification catalyst reacting the remainingacrylic or methacrylic acid with an amount, equivalent to the acid number, of an epoxycompound having no fewer than two epoxy groups per molecule until an acid number =<5 mg of KOH/g is obtained.
申请人：BASF AKTIENGESELLSCHAFT
地址：Carl-Bosch-Strasse 38 67063 Ludwigshafen DE
国籍：DE
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