Method and device for producing a graded index polymer
US5095079A · kind A · utility
8Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Jun 26, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F263/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To produce a graded index polymer there is diffused into a base material formed of at least one partly polymerized monomer adapted to yield a homopolymer with refractive index N1 in the gel state an additive material formed of at least one monomer adapted to yield a homopolymer with refractive index N2 different from N1. The polymerization of the base material treated in this way is then completed. The additive material comprises a mixture of at least two monomers and the composition of this mixture is varied with time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.