摘要:
A process for producing transparent hydrophilic gels having improved mechanical and sorption properties made from copolymers of 2-hydroxyethyl methacrylate and amides of methacrylic or acrylic acid, wherein said 2-hydroxyethyl methacrylate is copolymerized with about 20 to 90 weight percent of said methacrylamide or about 20 to 80 weight percent of said acrylamide in the presence of a crosslinking agent and a diluent, and the gels thus obtained are further modified by heating in an aqueous medium.
摘要:
A series of polymeric compositions, methods of making the compositions and uses of the compositions are described. An exemplary composition is made by copolymerization of a trifunctional amine or hydroxy compound, a monofunctional amine or hydroxy compound and a polyisocyanate compound.