The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
May. 05, 2009
Applicants:
Michael Grass, Haltern am See, DE;
Stefan Buchholz, Hanau, DE;
Wilfried Bueschken, Haltern am See, DE;
Inventors:
Michael Grass, Haltern am See, DE;
Stefan Buchholz, Hanau, DE;
Wilfried Bueschken, Haltern am See, DE;
Assignee:
Evonik Oxeno GmbH, Marl, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to mixtures of citric esters of the formula I, in which each of R, Rand Ris an aliphatic Cor Cmoiety, wherein the average chain length of the aliphatic moieties in the mixture is in the range from greater than 5 to 7, and the average degree of branching of the aliphatic Cmoieties is in the range from 0.9 to 2.2. The present invention also relates to the use of the citric ester mixture as a plasticizer in plastics compositions.