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:
Sep. 27, 2016
Filed:
Dec. 16, 2011
Applicants:
Michael Feustel, Köngernheim, DE;
Dirk Leinweber, Kelkheim, DE;
Inventors:
Michael Feustel, Köngernheim, DE;
Dirk Leinweber, Kelkheim, DE;
Assignee:
Clariant Produkte (Deutschland) GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/52 (2006.01); C07D 207/28 (2006.01); C08G 73/16 (2006.01);
U.S. Cl.
CPC ...
C07D 207/28 (2013.01); C09K 2208/22 (2013.01);
Abstract
A pyroglutamic acid ester of formula (1) in which A represents a Cto Calkylene group; x represents a number from 1 to 100; R' represents an aliphatic, cycloaliphatic or aromatic radical that contains at least one structural unit of formula 2, and; y represents a number from 1 to 100. The use of these pyroglutamic acid esters in quantities of 0.01 to 2% by weight for preventing the formation of gas hydrates in aqueous phases that are connected to a gaseous, liquid or solid organic phase.