<p>The present invention relates to a process for preparing unsaturated polyester resin comprising itaconate ester units as reactive unsaturations, wherein the process comprises reacting at least itaconic acid and/or itaconic anhydride and at least one diol in the presence of benzoquinone and/or alkyl substituted benzoquinone, whereby the total amount of benzoquinone and alkyl substituted benzoquinone is at least 200 ppm.</p>
申请公布号
WO2010108968(A1)
申请公布日期
2010.09.30
申请号
WO2010EP53853
申请日期
2010.03.24
申请人
DSM IP ASSETS B.V.;SZKUDLAREK, MARIAN HENRYK;JANSEN, JOHAN FRANZ GRADUS ANTONIUS;DUYVESTIJN, STEFANUS JACOBUS
发明人
SZKUDLAREK, MARIAN HENRYK;JANSEN, JOHAN FRANZ GRADUS ANTONIUS;DUYVESTIJN, STEFANUS JACOBUS
