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. 22, 2010
Filed:
Jan. 12, 2006
Christian Peter Lenges, Wilmington, DE (US);
Yanhui Niu, Newark, DE (US);
Yu-ling Hsiao, Villanova, PA (US);
Jiang Ding, Wilmington, DE (US);
Young H. Kim, Hockessin, DE (US);
Christian Peter Lenges, Wilmington, DE (US);
Yanhui Niu, Newark, DE (US);
Yu-Ling Hsiao, Villanova, PA (US);
Jiang Ding, Wilmington, DE (US);
Young H. Kim, Hockessin, DE (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The present invention provides for a rheology control agent that includes a following compound represented by the following formula: wherein A, B, C and D equal CH, CHR, NH, or O, and A, B, C and D may be the same or different and at least one of A and B equals NH and at least one of C and D equals NH; and wherein R, R, and Rmay be the same or different and represent a linear, branched, hyper-branched, or dendritic ether, polyether or hydrocarbon based chain, optionally forming at least one carbon-based ring, being saturated or unsaturated and Rrepresents linear or branched alkylenes, ethers, polyethers, or polyester linkages and at least one of R, R, and Rcomprises an ester group or an amide group which is branched off from the main chain; excluded from Formula (1) is a compound wherein Ris CH—CH—CH—CH—CH(C(O)OCH), A, B, C, and D are equal to NH and Rand Rare both equal to a linear octyl hydrocarbon chain; the rheology control agent is suitable for solvent-borne and water-borne coating composition having improved rheology control useful for OEM refinishing or repainting the exterior of automobile and truck bodies and parts thereof.