Oxygen permeable polymeric materials
US4833262A · kind A · utility
9Cited by
5References
2Claims
0Family size
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Key dates
| Filing date | Aug 12, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Aug 12, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A polymer represented by the general formula ##STR1## where m is the average degree of polymerization of the polymer, y is an integer from 1 to 3, x is an integer from 1 to 10, A denotes a halogen atom and R denotes an alkyl radical with 1 to 6 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.