Polymer encapsulation of high aspect ratio materials and methods of making same
US7488764B2 · kind B2 · utility
4Cited by
38References
58Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 20, 2004 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jul 8, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment contains one or more substantially spherical-shaped beads. Each substantially spherical-shaped bead includes one or more high aspect ratio particles encapsulated within an encapsulating material. Resinous compositions containing this pigment and a plastic, for example a polycarbonate, have a flowline-free colored, sparkling and/or metallescent appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.