摘要 |
A prepolymer is prepared by reacting a mixture containing (a) at least one multifunctional compound, (b) at least one diisocyanate, and (c) at least one diol. The diol has a weight average molecular weight of at most 6000. The prepolymer, when reacted with an excess of water, forms a hydrogel polymer. The mixture of the prepolymer and water may be reaction molded, and used to form a contact lens. |
申请人 |
WESLEY JESSEN CORPORATION;NOVARTIS AG;CARLSON, GREGORY;BLAIR, EDGAR, ALAN;WACHTEL, PETER;QUINN, MICHAEL, H.;WALLACH, JOSHUA |
发明人 |
CARLSON, GREGORY;BLAIR, EDGAR, ALAN;WACHTEL, PETER;QUINN, MICHAEL, H.;WALLACH, JOSHUA |