Precoat metal and its production
US4562714A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1983 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Nov 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31699
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A precoat metal, which has been prepared by coating a metal plate with a composition comprising (i) at least one member selected from the group consisting of (a) bis(isocyanatomethyl)cyclohexane and/or its adduct blocked with a blocking agent and (b) an isocyanate blocked with ethyleneimine and (ii) a polyol resin, and heating the thus coated metal plate to cure the coating material. Such film, when applied as a coating to a metal plate is completely free from yellowing and thermal degradation, and also exhibits increased hardness as well as a high flexural strength, staining resistance and chemical resistance. The precoat metal is advantageously utilized in construction materials, for example, roof decking and wall panels; and materials for light electrical appliances such as refrigerators and radios and TV, vending machine cabinets etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.