Pigmented vitreous material
US6524382B1 · kind B1 · utility
13Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/131
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors and preferably the absence of significant amounts of dispersants. These pigmented vitreous materials can be used as colored materials for any known purposes. Soluble pigment precursors comprising a partial structure are also claimed, wherein X1 is an aromatic or heteroaromatic ring, B is hydrogen or a group of the formula but at least one group B is not hydrogen, and L is a solubilizing group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.