초록 ▼

This invention relates to polymers and hydrogels of polymers formed from a hydrophilic monomer of the group of dihydroxyalkyl acrylates and methacrylates, a substantially water insoluble monomer from the group of alkyl acrylates and methacrylates and preferably a minor amount of a water insoluble ep

This invention relates to polymers and hydrogels of polymers formed from a hydrophilic monomer of the group of dihydroxyalkyl acrylates and methacrylates, a substantially water insoluble monomer from the group of alkyl acrylates and methacrylates and preferably a minor amount of a water insoluble epoxidized alkyl acrylate or methacrylate. The hydrogels are preferably used for the formation of contact lenses, but may also be used for drug and pesticides delivery devices: dialysis, ultrafiltration and reverse osmosis membranes; implants in surgery and dentistry, and the like.

대표청구항 ▼

A polymer formed by a free radical, bulk polymerization of a first hydrophilic monomer conforming to the formula: [Figure] where R is hydrogen or methyl or methyl and n is a whole integeR having a value of from 0 to 4, a second substantially water insoluble monomer conforming to the formula: [Figur

A polymer formed by a free radical, bulk polymerization of a first hydrophilic monomer conforming to the formula: [Figure] where R is hydrogen or methyl or methyl and n is a whole integeR having a value of from 0 to 4, a second substantially water insoluble monomer conforming to the formula: [Figure] where R is as above described and R′is alkyl having from 1 to 6 carbon atoms, the mole ratio of said first monomer to said second monomer varying between 1:3 and 20:1, and a third substantially water insoluble monomer conforming to the formula [Figure] where R and n are as above defined, the concentration of said third monomer varying between 0 and 30% by weight of the first monomer, said polymer being insoluble in a member selected from the group of acetone, dioxane and mixtures thereof.