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. 23, 2026
Filed:
Aug. 06, 2021
Hydrophobically-modified associative thickener polymers process for the preparation and uses thereof
Hercules Llc, Wilmington, DE (US);
Kelly Anne Brush, Newark, DE (US);
Venkataram Krishnan, Avondale, PA (US);
Zeena Kottukapally Cherian, Exton, PA (US);
Todd A. Brugel, Wilmington, DE (US);
HERCULES LLC, Wilmington, DE (US);
Abstract
Disclosed is a hydrophobically-modified associative thickener polymer prepared from a reaction mixture comprising a) a polytetrahydrofuran having a formula (I): b) at least one active hydrogen-containing compound; c) a gem-polyhalide with an alkali hydroxide; or d) a polyglycidyl ether with an alkali hydroxide; e) optionally, a hydrophobe-containing compound, wherein m is an integer in a range from 2 to 750; also disclosed are the aqueous protective coating compositions; further disclosed is a process to prepare a hydrophobically-modified associative thickener polymer.