Hydrogels and articles made therefrom

Details Hydrogels and articles made therefrom Hydrogels and articles made therefrom

1974-03-18

1976-05-18

Wong, Jr., Harry

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

128130, 264 1, 260 25R, 260 296R, 424 81, 526230, 526320, C08F22014, G02C 704

Patent

active

039573621

ABSTRACT:
This invention relates to copolymers and hydrogels formed by copolymerization of a hydrophilic monomer from the group of dihydroxyalkyl acrylates and methacrylates and a substantially water insoluble monomer from the group of alkyl acrylates and methacrylates. The preferred copolymer of the invention is formed from methyl methacrylate and glyceryl methacrylate (2,3-dihydroxypropyl methacrylate). The hydrogels of the invention have unique physical and physiological properties which are particularly useful for the formation of contact lenses, particularly contact lenses having a relatively thin cross-section, though they may also be used for other purposes such as drug and pesticides delivery devices, dialysis, ultrafiltratiaon and reverse osmosis membranes, implants in surgery and dentistry and the like.

REFERENCES:
patent: 2976576 (1961-03-01), Wichterle et al.
patent: 3220960 (1965-11-01), Wichterle
Yasuda et al., Die Makromolekulare Chemie 118 (1968), pp. 19 and 22-24.
Yasuda et al., J. Pol. Sci., Part A-2, Vol. 9, (1971), pp. 1117 and 1122-1124.

Affiliated with

Also associated with

Rating

Hydrogels and articles made therefrom does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrogels and articles made therefrom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogels and articles made therefrom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2232160