Hydrophilic polymers and contact lenses of high water content

Details Hydrophilic polymers and contact lenses of high water content Hydrophilic polymers and contact lenses of high water content

1981-12-09

1983-10-18

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

351160H, 526262, 526263, C08F21208, G02C 704

Patent

active

RE0314226

ABSTRACT:
Cross-linked hydrophilic interpolymers and contact lenses made therefrom comprising hydrophilic units of which the only or major proportion are derived from vinyl pyridine or an N-vinyl heterocyclic monomer, hydrophobic units derived from the group consisting of styrene and ring-substituted styrenes, and cross-linking units derived from monmers containing two or more polymerizable double bonds per monomer unit.

REFERENCES:
patent: 3532679 (1970-10-01), Steckler
patent: 3639524 (1972-02-01), Seiderman
patent: 3839304 (1974-10-01), Hovey
patent: 3937680 (1976-02-01), de Carle
patent: 3943045 (1976-03-01), Cordrey et al.
patent: 3949021 (1976-04-01), Kunitomo et al.
patent: 3978164 (1976-08-01), Le Boeuf et al.
patent: 3985697 (1976-10-01), Urbach
patent: 4022754 (1977-05-01), Howes
patent: 4036788 (1977-07-01), Steckler
patent: 4038264 (1977-07-01), Rostoker et al.
patent: 4058491 (1977-11-01), Steckler

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