Compositions based on ethylene-vinyl acetate copolymers and their use as anti-gelling additives of paraffinic crude oils
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United States of America Patent
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Aug 6, 2019
Grant Date -
Feb 2, 2017
app pub date -
Dec 5, 2014
filing date -
Dec 6, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
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.
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International Classification(s)
- 2014 Application Filing Year
- C10M Class
- 354 Applications Filed
- 278 Patents Issued To-Date
- 78.54 % Issued To-Date
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- 0 Citation Count
- C10M Class
- 0 % this patent is cited more than
- 6 Age
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