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:
Oct. 27, 1998
Filed:
Aug. 07, 1996
Donald Douglas May, Chadds Ford, PA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Fluorourethane additives for water-dispersed coating compositions comprising the product of the reaction of 1) at least one diisocyanate, or polyisocyanate or a mixture of polyisocyanates containing at least three isocyanate groups per molecule, (2) at least one fluorochemical compound containing at least one Zerewitinoff hydrogen in an amount sufficient to react with 5% to 80% of the isocyanate groups in the diisocyanate or polyisocyanate, (3) at least one compound of the formula R.sub.10 --(R.sub.2).sub.k --YH in an amount sufficient to react with 5% to 80% of the isocyanate groups in the diisocyanate or polyisocyanate and wherein R.sub.10 is a C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 omega-alkenyl radical, or C.sub.1 -C.sub.18 omega-alkenoyl; R.sub.2 is --C.sub.n H.sub.2 n-- optionally end-capped with --�OCH.sub.2 C(R.sub.4)H!.sub.p --, --�OCH.sub.2 C(CH.sub.2 Cl)H!p--, or --C(R.sub.5) (R.sub.6) (OCH.sub.2 C�CH.sub.2 Cl!H).sub.p --, wherein R.sub.4, R.sub.5, and R.sub.6 are the same or different and are H or a C.sub.1 -C.sub.6 alkyl radical, n is 0 to 12, p is 1 to 50; Y is O, S, or N(R.sub.7) wherein R.sub.7 is H or C.sub.1 -C.sub.6 alkyl; and k is 0 or 1; and optionally (4) water in an amount sufficient to react with 5% to 60% of the isocyanate groups in the diisocyanate or polyisocyanate are disclosed.