Hydrophilic copolymer compositions useful as contact lenses

Details Hydrophilic copolymer compositions useful as contact lenses Hydrophilic copolymer compositions useful as contact lenses

1982-08-11

1984-05-22

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

351160R, 351160H, 523105, 523106, 526311, C08F22020, C08F22028, C08F22034

Patent

active

044502621

ABSTRACT:
Novel hydrophilic copolymers are prepared containing a major portion of polymerized units of an hydroxyalkyl acrylate or methacrylate monomer and a minor portion of a nitro-substituted aryl acrylate or methacrylate monomer, and optionally with a minor amount of an alkylene glycol diacrylate or methacrylate as a cross-linking agent. These copolymers are made by a free radical polymerization mechanism or by gamma radiation of the reaction mixture. These copolymers are particularly useful as soft contact lens polymers, being extremely resistant to clouding and/or discoloration in use.

REFERENCES:
patent: Re27401 (1972-06-01), Wichterle et al.
patent: 3220960 (1965-11-01), Wichterle et al.
patent: 3503942 (1970-03-01), Seiderman
patent: 3699089 (1972-10-01), Wichterle
patent: 3914341 (1975-10-01), Kliment et al.
patent: 4109074 (1978-08-01), Creighton et al.

Affiliated with

Also associated with

Rating

Hydrophilic copolymer compositions useful as contact lenses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrophilic copolymer compositions useful as contact lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrophilic copolymer compositions useful as contact lenses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1479064