Process for preparing shaped hydrogel articles including contact lenses.

摘要

ARTICLES FORMED HYDROGEL AS CONTACT LENSES ARE PREPARED BY (1) MOLDING OR PROOF OF A polymerization mixture: (A) a monomer mixture comprising a major proportion of a ESTER Hydrophilic (meth) acrylate AS A METACRILATO 2 - hydroxyethyl CROSS AND LINKED a monomer; And (B) a scrollable THINNER in water having a viscosity of at least 100 MPA SEC A 30 CY is essentially a ESTER ACID boronic dihydric alcohols, said alcohols having a polar HANSEN (DP) and a hydrogen bond HANSEN (DH ) with parameters FALLING IN THE AREA OF A circle defined as possessing a center DH = 20.5 DP = 13 and a radius of 8.5 to produce the GEL FORMING of a copolymer of said monomers and said DILUIYENTE, Y (2) after REPLACE THIS WITH WATER SUCH THINNER.