发明授权
US5349019A New copolymers, mixtures thereof with poly(meth)acrylate esters and the
use thereof for improving the cold fluidity of crude oils
失效
新的共聚物,其与聚(甲基)丙烯酸酯的混合物及其用于改善原油冷流动性的用途
- 专利标题: New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils
- 专利标题(中): 新的共聚物,其与聚(甲基)丙烯酸酯的混合物及其用于改善原油冷流动性的用途
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申请号: US116204申请日: 1993-09-02
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公开(公告)号: US5349019A公开(公告)日: 1994-09-20
- 发明人: Herbert Wirtz , Sigmar-Peter von Halasz , Michael Feustel , Juliane Balzer
- 申请人: Herbert Wirtz , Sigmar-Peter von Halasz , Michael Feustel , Juliane Balzer
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Hoechst
- 当前专利权人: Hoechst
- 当前专利权人地址: DEX Frankfurt am Main
- 优先权: DEX3843922 19881224
- 主分类号: C08F220/18
- IPC分类号: C08F220/18 ; C10L1/14 ; C10L1/18 ; C10L1/195 ; C10L1/196 ; C10L1/20 ; C10L1/22 ; C08L33/08 ; C08L33/10 ; C10N30/02
摘要:
New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils.Copolymers comprising as comonomers therein from 50 to 99.9% by weight of a C.sub.14 -C.sub.22 -alkyl(meth)acrylate and 50 to 0.1% by weight of a comonomer derived from a compound comprising a single polymerizable C.dbd.C group and these copolymers or their mixture with C.sub.14 -C.sub.22 -alkyl poly(meth)acrylates having enhanced pour point depressant properties.
公开/授权文献
- USD432915S Combined lid and funnel 公开/授权日:2000-10-31
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