Polymeric film having a coating layer of a phosphonic acid group containing polymer
US6495309B1 · kind B1 · utility
5Cited by
8References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 21, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jun 21, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/111
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A substantially gelatin free polymeric film includes a coating layer of a polymer having at least one —POXY pendant group, pendant carboxyl group or capable of forming carboxyl groups and further comprises a sulphonated monomer, salt or derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.