Aqueous polyurethane dispsersions
US9969916B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 3, 2013 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Mar 1, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2170/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is an aqueous polyurethane dispersion comprising (a) dispersed particles of said polyurethane, wherein said polyurethane is the reaction product of polyurethane formation reactants comprising (i) one or more polyisocyanate, (ii) a polyol component comprising one or more polyol, and (iv) one or more organometallic compound having the structurewherein n is 0 or 1, t is 0 or 1, r is 0 or 1, p is 0 to 2, q is 0 to 13, at least one of p and q is not zero, M is a metal that is not silicon, —X1 is —NH2 or —OH; and —X2 is selected from the group consisting of —SH, —NH2, —COOH, andand (b) one or more isocyanate crosslinker having two or more isocyanate groups per molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.