Polyester resin with improved color characteristics
US5618908A · kind A · utility
4Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1996 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jul 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/197
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aromatic polyester resins having improved color characteristics obtained incorporating in the resins in the preparation phase of the resin by polycondensation of a diol with an aromatic bicarboxylic acid a violet toner formed of 9,10 anthraquinone -2-hydroxy-4-p-toluidine or having an absorption spectrum comparable to that of the above anthraquinone compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.