Cross-linked n-vinyl pyrrolidone polymer composition suitable fo

Details Cross-linked n-vinyl pyrrolidone polymer composition suitable fo Cross-linked n-vinyl pyrrolidone polymer composition suitable fo

1974-08-07

1976-04-06

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 17A, 351160, C08L 128, C08L 3906

Patent

active

039490211

ABSTRACT:
Contact lens having high water content make from polymer of cross-link-polymerized N-vinyl pyrrolidone in the presence of water-insoluble polymer has excellent properties suitable for continuous wearing for a long period of time.

REFERENCES:
patent: 3728317 (1973-04-01), Blank
patent: 3767731 (1973-10-01), Seiderman
patent: 3792028 (1974-02-01), Seiderman

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