Color effect coating compositions having reflective organic pigments
US6299979A · kind A · utility
28Cited by
14References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
By use of polymeric color effect pigment, comprising a plurality of particles essentially free from metallic material, preferably free from inorganic material, and formed from a large number of layers of polymeric materials whose refractive indices differ from each other, metallic, reflective, or colored appearance is provided to coatings or other polymeric products without the use of relatively dense pigments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.