Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
83 words
A method of casting a polymeric gel in an open mold from a liquid polymerization mixture containing at least one volatile monomer component dissolved therein which comprises providing a protective gas above the open surface of the polymerization mixture during polymerization, said protective gas prior to coming into contact with said open surface of the polymerization mixture being combined with an amount of said volatile monomer which wil be in equilibrium with the volatile monomer present within the polymerization mixture under polymerization conditions.
Claim 2
Independent Claim
83 words
A method of casting a polymeric gel in an open mold from a liquid polymerization mixture containing at least one volatile monomer component dissolved therein which comprises providing a protective gas above the open surface of the polymerization mixture during polymerization, said protective gas prior to coming into contact with said open surface of the polymerization mixture being combined with an amount of said volatile monomer which wil be in equilibrium with the volatile monomer present within the polymerization mixture under polymerization conditions.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein polymerization is carried out in a rotating mold.
Claim 4
Dependent Claim
26 words
The method of claim 1 wherein the protective gas is at least one inert gas selected from the group consisting of nitrogen, argon and carbon dioxide.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the polymerization mixture contains hydroxyethyl methacrylate, acrylic acid and a crosslinking agent, the volatile monomer being acrylic acid.
Claim 6
Dependent Claim
26 words
The method of claim 1 wherein the protective gas is at least one inert gas selected from the group consisting of nitrogen, argon and carbon dioxide.
Claim 7
Dependent Claim
24 words
The method of claim 3 wherein the polymerization mixture contains hydroxyethyl methacrylate, acrylic acid and a crosslinking agent, the volatile monomer being acrylic acid.
Claim 8
Dependent Claim
48 words
The method of claim 1 wherein polymerization is carried out in a rotating mold, the protective gas is selected from the group consisting of nitrogen, argon and carbon dioxide and the polymerization mixture contains hydroxyethyl methacrylate, acrylic acid and a crosslinking agent, the volatile monomer being acrylic acid.
Claim 9
Dependent Claim
21 words
The method of claim 1 wherein the polymerization mixture contains N-vinyl pyrrolidone and methyl methacrylate, the volatile monomer being methyl methacrylate.
Claim 10
Dependent Claim
21 words
The method of claim 2 wherein the polymerization mixture contains N-vinyl pyrrolidone and methyl methacrylate, the volatile monomer being methyl methacrylate.
Claim 11
Dependent Claim
21 words
The method of claim 3 wherein the polymerization mixture contains N-vinyl pyrrolidone and methyl methacrylate, the volatile monomer being methyl methacrylate.
Claim 12
Dependent Claim
49 words
The method of claim 1 wherein polymerization is carried out in a rotating mold, the protective gas is at least one gas selected from the group consisting of nitrogen, argon and carbon dioxide and the polymerization mixture contains N-vinyl pyrrolidone and methyl methacrylate, the volatile monomer being methyl methacrylate.
Claim 13
Dependent Claim
18 words
The method of claim 1 wherein the polymeric gel is cast in the form of a contact lens.
Claim 14
Dependent Claim
14 words
The method of claim 12 wherein polymerization is carried out in a rotating mold.
Claim 15
Dependent Claim
24 words
The method of claim 13 wherein the polymerization mixture contains hydroxyethyl methacrylate, acrylic acid and a crosslinking agent, the volatile monomer being acrylic acid.
Claim 16
Dependent Claim
21 words
The method of claim 13 wherein the polymerization mixture contains N-vinyl pyrrolidone and methyl methacrylate, the volatile monomer being methyl methacrylate.