Polyurethane composition consisting essentially of a polyether diol, a polyether triol, glycerol, and a polyisocyanate
US4804734A · kind A · utility
9Cited by
25References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Sep 25, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/8019
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Two-component polyol/polyisocyanate composition especially useful as an abrasion-, heat-, and corrosion-resistant automotive undercoating. The polyol component comprises glycerol, a polypropylene oxide glycol, and a polypropylene oxide triol. The polyisocyanate component comprises MDI (diphenylmethane-4,4'-diisocyanate), plus a poly(oxypropylene) glycol capped with MDI.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.