Water-dispersible blocked isocyanate composition, and water-base paint composition and water-base adhesive composition using the same
US6080812A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2170/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water-dispersible blocked isocyanate composition, including an isocyanate group-terminated precursor and a blocking agent for blocking a free isocyanate group of the precursor, wherein the precursor includes at least an organic diisocyanate, a low-molecular glycol, and a hydrophilic surfactant having at least one active hydrogen group. The precursor also has an isocyanurate ring structure; an average functional group number (f) satisfying 2.0.ltoreq.f.ltoreq.4.2; a low-molecular glycol content (X) satisfying 0.5 wt. %.ltoreq..times..ltoreq.15 wt. %; and a hydrophilic surfactant content(Y) satisfying 0.1 wt. %.ltoreq.Y.ltoreq.50 wt. %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.