Coating method
US4857368A · kind A · utility
10Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1988 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | May 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31598
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for forming a polyurethane coating on a substrate comprising mixing a liquid polyurethane prepolymer with an isocyanate content of 2.5 to 8.5% with water containing a carbon dioxide binding agent, a water absorbing agent and optionally at least one member of the group consisting of fillers and additives, coating the mixture onto a substrate within the processing time and curing the mixture at room temperature to obtain a polyurethane coating securely attached to the substrate which may be used as a coating for playground and sport areas and for construction sealing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.