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:
Jun. 28, 2022
Filed:
Apr. 12, 2018
Byk-chemie Gmbh, Wesel, DE;
Dominika Bernert, Wesel, DE;
René Nagelsdiek, Hamminkeln, DE;
Alan L. Steinmetz, Louisville, KY (US);
Justin Adams, Louisville, KY (US);
George M. Zody, Louisville, KY (US);
Wesley A. Huff, Wesel, DE;
Daniela Leutfeld, Wesel, DE;
BYK-CHEMIE GMBH, Wesel, DE;
Abstract
The invention relates to polymer comprising structural units according to formula (I), R—X—(C═O)—NH—R—NH—(C═O)—O—POA-R—(O—POA-R)wherein Rrepresents an organic group terminated by a hydrocarbyl group having 6 to 50 carbon atoms, X represents O or N—R, wherein Rrepresents a hydrogen atom or a hydrocarbyl group having 1 to 30 carbon atoms, Rrepresents a hydrocarbyl group comprising an aromatic group and having 6 to 40 carbon atoms, POA represents a polyoxyalkylene group, Rrepresents an organic group having 2 to 40 carbon atoms, n is an integer from 1 to 6, Ris independently selected from —(C═O)—NH—R—NH—(C═O)—NH—R, —R, wherein Rrepresents a hydrogen atom or an aliphatic or aromatic group having 1 to 24 carbon atoms, and wherein the polymer has an average of at least 1.8 end groups Rper molecule, a number average molecular weight in the range of 2000 to 100000 Daltons, and a polydispersity in the range of 1.0 to 5.0, wherein the quotient of the polydispersity divided by (n+1) is less than 1.0.