Polymerizable diketopyrrolopyrroles and polymers prepared therewith
US5847156A · kind A · utility
25Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/109
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
1,4-Diketopyrrolopyrroles of the formula ##STR1## in which A and B independently of one another are a group of the formula ##STR2## R.sub.1 is a long-chain radical containing a reactive group capable of polymerization, and R.sub.2 is C.sub.1 -C.sub.6 alkyl, ##STR3## or R.sub.1. The novel diketopyrrolopyrroles are suitable for preparing coloured polymers with unexpectedly advantageous colour effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.