Polyester coil coating formulation
US8716429B2 · kind B2 · utility
1Cited by
24References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2008 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jan 23, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/199
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In a curable coil coating composition comprising a mixture of: (a) a curable polyester that is a liquid at room temperature, (b) a cross-linking agent; and (c) a solvent; the improvement comprising preparing the polyester from a composition comprising a mixture of 1,3- and 1,4-cyclohexane dimethanol wherein the molar ratio of the 1,3 isomer to the 1,4 isomer is from about 60:40 to about 5:95. Cured coil coatings prepared from these compositions exhibit an excellent combination of flexibility and hardness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.