Coating compositions formulated from polyols modified by reaction with glycidyl ether
US4314923A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1980 |
| Grant date | Feb 9, 1982 |
| Priority date | — |
| Expiry date | Jun 4, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D161/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coating compositions are formulated using a polyol with a hydroxyl functionality of at least three modified by reaction with a glycidyl ether in proportion of about 0.1 to about 4, preferably from about 0.2 to about 2 moles of glycidyl ether per mole of polyol, with which is combined, as curing agent, a compatible aminoplast resin. When the polyol is trimethylol ethane, for example, and is so modified with allyl or butyl glycidyl ether, for example, and is so modified with allyl or butyl glycidyl ether, for example, and the compositions contain a methylated melamine formaldehyde condensate as curing agent, they are especially suitable for clear top coating surfaces of wood or flat woodstock containing printing inks to simulate woodgrain, to provide a durable coating highly adherent to the inks as well as the cellulosic materials. The compositions may contain high solids content yet they are stable on storage without development of crystallization and are reducible or thinnable with water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.