| 发明名称 |
COMPOSITIONS BASED ON ETHYLENE-VINYL ACETATE COPOLYMERS AND THEIR USE AS ANTI-GELLING ADDITIVES OF PARAFFINIC CRUDE OILS |
| 摘要 |
A polymeric composition suitable for lowering the Pour Point of paraffinic crude oils comprising a synergic mixture including at least two ethylene-vinyl acetate copolymers respectively having an average molecular weight Mw lower than 130,000 Dalton (measured via GPC), a content of vinyl acetate monomer ranging from 15 to 50% by weight, with the proviso that the content of vinyl acetate monomer in the respective copolymers differs from one copolymer to another, by over 5%, on a weight basis. |
| 申请公布号 |
US2017029732(A1) |
申请公布日期 |
2017.02.02 |
| 申请号 |
US201415102138 |
申请日期 |
2014.12.05 |
| 申请人 |
VERSALIS S.P.A. ;ENI S.P.A. |
发明人 |
MARIANI Paolo;AGNOLI Michela;CASALINI Alessandro;MERLINI Massimo |
| 分类号 |
C10L1/197;C10L10/16;C08L23/08 |
主分类号 |
C10L1/197 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A polymeric composition suitable for lowering the Pour Point of paraffinic crude oils comprising a synergic mixture comprising at least two ethylene-vinyl acetate (EVA) copolymers having an average molecular weight Mw ranging from 25,000 to 100,000 Dalton (measured via GPC), a content of vinyl acetate (VA) monomer ranging from 15 to 50% by weight, respectively, with the proviso that the content of vinyl acetate monomer in the respective copolymers differs from one another by a value higher than 5% on a weight basis. |
| 地址 |
Sna Donto Milanese (MI) IT |
