Phosporescent polycarbonate and molded articles
US6716368B1 · kind B1 · utility
12Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2001 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is drawn to a transparent or translucent thermoplastic composition comprising a thermoplastic polycarbonate resin and a phosphorescent phosphor with an aluminate matrix expressed by MAl2O4 in which M is calcium, strontium or barium. Said phosphorescent phosphor is present in a quantity of 0.01 to 2.0% by weight with respect to the quantity of polycarbonate resin and possesses a median particle size of less than 10 micrometer. Forming an object by injection molding using said transparent or translucent thermoplastic composition is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.