- 专利标题： Copolymers comprising a-olefins and olefin dicarboxylic acid esters, production thereof, and use thereof as pour point depressants for crude oils, mineral oils, or mineral oil products
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申请号： US15778723申请日： 2016-11-17
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公开(公告)号： US10781385B2公开(公告)日： 2020-09-22
- 发明人: Ivette Garcia Castro , Kai Gumlich , Stefan Frenzel , Maria Heuken , Rouven Konrad , Karin Neubecker , Edward Bohres , Adam Blanazs
- 申请人： BASF SE
- 申请人地址： DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE
- 代理机构： Faegre Drinker Biddle & Reath LLP
- 优先权： com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2b383d71
- 国际申请： PCT/EP2016/077935 WO 20161117
- 国际公布： WO2017/089212 WO 20170601
- 主分类号： C10L1/196
- IPC分类号： C10L1/196 ; C10L10/04 ; C10L10/16 ; C10L10/14
摘要：
Copolymers comprising C14 to C50 olefins and at least two different olefindicarboxylic esters and optionally maleic acid or maleic acid derivatives. The olefindicarboxylic esters are firstly esters with linear C18- to C50-alkyl groups and secondly esters with short-chain linear, branched or cyclic alkyl groups, or esters with aromatic groups. The invention further relates to a process for preparing copolymers of this kind and to the use thereof as pour point depressant for crude oil, mineral oil and/or mineral oil products, preferably as pour point depressant for crude oil.