Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1985-05-13
1986-10-07
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
351160R, 522 62, 522 99, 522172, 523107, 525100, 526279, 528 26, G08J 328, C08L 8304, C08L10010, G02C 704
Patent
active
046160450
ABSTRACT:
A process of preparing a new contact lens material that is gas permeable, surface wettable, and relatively hard is disclosed. Also disclosed are contact lenses made of this new material, which are comfortable to wear. The new contact lens material is the copolymerization product of a reaction mixture comprising: (1) styrene or a ring substituted styrene; (2) a vinyl alcohol ester such as vinyl acetate; (3) a polyethylene glycol ester such as pentaethyleneglycol monomethacrylate; (4) a substituted polysiloxane such as dimethyl polysiloxane or a substituted silane; and, optionally, (5) a cross-linking agent such as divinyl benzene.
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Article entitled "Assessing the Wesley-Jessen Airlens" by Josephson, Caffery and Pope in the Jun. 1983 edition of Contact Lens Forum, at pp. 55 through 62.
GBF, Inc.
Lieberman Allan M.
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