Urea- and uretdione-functional polyisocyanates
US6156863A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Apr 15, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2150/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A urea- and uretdione-functional polyaddition compound having free, partially or totally blocked isocyanate groups and having the following structure: ##STR1## wherein the substituents are defined as follows: ##STR2## n: 1-20; R.sub.1 is R or a linear, branched or cyclic alkylene or phenylene radicals having 2-16 carbon atoms; PA1 R.sub.2, R.sub.3 are each H, R.sub.4 or a ##STR3## R.sub.4, R.sub.5 are each identical or different hydrocarbon radicals having 1-14 carbon atoms; PA1 prepared by reacting isophorone diisocyanate-uretdione with diamine mixtures comprising 1-60 mol % diprimary diamines, 1-98 mol % primary/secondary diamines and 1-98 mol % disecondary diamines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.