Photochromic assembly and manufacture of this assembly
US4489108A · kind A · utility
7Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Mar 2, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photochromic assembly is produced by coating onto a self-supporting flexible plastics material a polymer latex comprising from 10 to 40% by weight of the total solids of the latex photochromic glass beads from 0.05 .mu.m to 50 .mu.m in size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.