Esterification process with calcium hydroxybenzyl
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
专利名称：Esterification process with calcium
hydroxybenzyl phosphonate-phenol sulfide
catalyst system
发明人：Geib, Jay R.,Windus, John J.
申请号：EP87810674.9
申请日：19871118
公开号：EP0269569B1
公开日：
19920513
专利内容由知识产权出版社提供
摘要：An esterfication process particularly for the preparation of rosin esters, polyesters and polymeric esters wherein aliphatic or aromatic carboxylic acids are reacted with appropriate alcohols in the presence of catalytic amounts of a mixture of a calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate] and a phenol sulfide, the presence of said mixture serving to reduce the time necessary for complete esterification and to provide esters with increased oxidation stability and better color.
申请人：CIBA-GEIGY AG
地址：KLYBECKSTRASSE 141; CH-4002 BASEL
更多信息请下载全文后查看