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:
Dec. 14, 2021
Filed:
Dec. 19, 2016
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
Kimy Yeung, Phoenixville, PA (US);
Antony K. Van Dyk, Blue Bell, PA (US);
Jonathan DeRocher, Coopersburg, PA (US);
Steven Arturo, Wyncote, PA (US);
John J. Rabasco, Allentown, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
A hydrophilic polyurethane comprising polymerized units of: (a) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (b) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and wherein a product of weight fraction of polymerized ethylene oxide units and polyethylene oxide mean molecular weight is from 4,200 to 16,000.