Shaped body of at least two polymerized materials and method to make same
US4208362A · kind A · utility
85Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1976 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Mar 22, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/049
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shaped body is manufactured from at least two polymerized materials with one polymerized material being swellable relative to the other polymerized material. The shaped body is formed having sections of the first material, the second material and a substantially random copolymer of the first and second materials as a transition section between the first and second sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.