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:
Jul. 23, 2019
Filed:
Dec. 20, 2017
Applicant:
Hercules Llc, Wilmington, DE (US);
Inventors:
Kelly A. Brush, Newark, DE (US);
Zeena Kottukapally Cherian, Exton, PA (US);
Venkataram Krishnan, Landenberg, PA (US);
Sowmitri Tarimala, Newark, DE (US);
Assignee:
HERCULES LLC, Wilmington, unknown;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 8/30 (2006.01); C08G 65/333 (2006.01); C08L 59/00 (2006.01); C09D 159/00 (2006.01); C09D 5/02 (2006.01); C09D 7/20 (2018.01); C09D 7/65 (2018.01); C09D 171/00 (2006.01);
U.S. Cl.
CPC ...
C09D 171/00 (2013.01); C08F 8/30 (2013.01); C08G 65/33317 (2013.01); C08L 59/00 (2013.01); C09D 5/02 (2013.01); C09D 5/021 (2013.01); C09D 7/20 (2018.01); C09D 7/65 (2018.01); C09D 159/00 (2013.01); C08L 2201/54 (2013.01); C08L 2666/36 (2013.01);
Abstract
An aqueous coating composition comprising at least 0.5 wt % of a lactam-functionalized polymer is disclosed. The lactam-functionalized polymer includes lactam-functionalized polyacetal polyether, polyhemiaminal polyether or polyaminal polyether. The aqueous coating composition can increase an open time of a water-borne latex paint. A method of increasing an open time for an aqueous coating composition of a water-borne latex paint using the lactam-functionalized polymer is also disclosed.