Reactive anthraquinone colorant compounds and polymeric materials reacted therewith
US6713641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2001 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | May 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are blue, diol anthraquinone blue colorant compounds having excellent thermal stability and which can be reacted into or copolymerized with polyester thus providing a blue-colored polyesters useful for manufacturing a variety of shaped articles such as photographic film base, particularly roentgenographic (X-ray) film. Also disclosed are blue anthraquinone colorant compounds which contain two ethylenically-unsaturated (vinyl), photopolymerizable radicals which may be derived from the aforesaid diol anthraquinone compounds. The anthraquinone colorant compounds containing two ethylenically-unsaturated may be reacted into or copolymerized (or cured) with ethylenically-unsaturated monomers to produce colored vinyl polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.