Colored polyester compositions
US5030708A · kind A · utility
29Cited by
19References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Dec 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B23/0091
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are novel methine colorants derived from acetaldehyde, 1,3-dihydro-7-methoxycarbonyl-1,1,3-trimethyl-2H-benz[e]indol-2-ylidine and polyester compositions and concentrates having these colorants copolymerized therein. Also provided are novel intermediates useful for making the colorants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.