Patent · US Expired

Copolymers as dewaxing additives

US7728093B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

Evonik RohMax Additives GmbH · DE

Inventors

Markus Scherer · Lebach, DE
Michael Mueller · Bensheim, DE
Jean-Luc HERBEAUX · Cascais, PT
Dieter Janssen · Lippstadt, DE
Melanie Croessmann · Ober-Ramstadt, DE

Key dates

Filing date	Feb 14, 2003
Grant date	Jun 1, 2010
Priority date	—
Expiry date	Jan 26, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L33/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to copolymers which are suitable for producing additives for solvent deparaffination of paraffin-containing mineral oil distillates and which consist of radically polymerized monomers of formulas A and B, wherein the radicals have the meaning cited in the description. The invention also relates to the use of said copolymers for the production of dewaxing additives.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.