Blocked oligomeric isocyanates, their production and use
US6437077B1 · kind B1 · utility
9Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Self-dispersible mixtures (G) of oligomeric isocyanates (C) reacted in part with polyethylene glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (B) are useful as auxiliaries in the finishing of fibrous material with oleophobicizing and/or hydrophobicizing finishes (F) comprising fluorocarbon polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.