Colorant composition, a polymer nanocomposite comprising the colorant composition and articles produced therefrom
US6486254B1 · kind B1 · utility
18Cited by
133References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a colorant composition comprising a layered clay material intercalated with at least one cationic colorant, optical brightener or a mixture thereof. This invention also relates to a polymer-clay nanocomposite comprising (i) a melt-processible matrix polymer, and (ii) a layered clay material intercalated with at least one cationic colorant, optical brightener or a mixture thereof, wherein the clay-cation colorant/optical brightener intercalate is incorporated into the matrix polymer. The invention further relates to articles produced from the polymer nanocomposite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.