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4056496 |
Hydrogels and articles made therefrom
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...
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4053442 |
Method for manufacturing shaped articles from multi-block copolymers
The invention relates to a new method for manufacturing shaped articles from multi-block copolymers of acrylonitrile with acrylamide and/or acrylic acid, using hot pressure molding, preferably in...
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4035330 |
Hydrophilic copolymer of N,N-di(C.sub.1 -C.sub.2 alkyl)acrylamide cross-linked with a glycidyl ester
A hydrophilic copolymer of an N,N-di(C 1 -C 2 alkyl)acrylamide is disclosed. The copolymer is formed by reacting, based on 100 parts, from about 20-80 parts of a C 1 -C 2 alkyl substituted...
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4028295 |
Hydrophilic polymer and contact lens
A hydrophilic polymer and contact lens made therefrom, said polymer consisting essentially of a diester-free glycol monoester of acrylic or methacrylic acid and a comonomer having the formula:...
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3988274 |
Process for producing soft contact lenses
A soft contact lens having a water content of at least 45% and a tensile strength of at least 100 g/mm 2 can be produced by pouring into a mold a composition consisting of 70 to 93% by weight of...
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3985697 |
Hydrophilic contact lens material
A terpolymer material for the formation of soft contact lenses includes a major amount of hydroxy alkyl acrylate or methacrylate, between 0.01 and 0.25% of a diester cross-linking agent containing...
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3947401 |
Hydrogels of unsaturated ester copolymers
Bulk polymerized, water insoluble but water swellable polymer of monomers comprising water soluble monoester of acrylic or methacrylic acid with a polyhydric alcohol; and glycidyl methacrylate,...
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3929741 |
Hydrophilic acrylamido polymers
Hydrophilic acrylamido polymers are provided. These polymers are obtained by polymerization of acrylamidoalkyl-sulfonic acid monomers and are capable of ingurgitating large quantities of liquids,...
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3926892 |
Hydrophilic contact lenses and lens polymer
A superior hydrophilic gel polymer and contact lenses therefrom are formed by bulk polymerization of hydroxyethyl methacrylate, 5 to 15 weight percent iso-butyl methacrylate, 1 to 5 weight percent...
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3876581 |
Hydrophilic polymer composition for prosthetic devices
Hydrophilic polymer compositions having good properties for fabrication in the dehydrated state and which become soft and resilient yet structurally stable in the hydrated state are provided. The...
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3499862 |
METHOD OF PREPARING SHAPE RETAINING BODIES OF ORGANIC POLYMER HYDROGELS
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3496254 |
METHOD OF MANUFACTURING SOFT AND FLEXIBLE CONTACT LENSES
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3220960 |
Cross-linked hydrophilic polymers and articles made therefrom
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2840535 |
Aryl phosphate plasticized alkyd resin adhesive compositions and method of preparing
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3557261 |
Title is not available
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3728314 |
Title is not available
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3728317 |
Title is not available
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3803093 |
Title is not available
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3812071 |
Title is not available
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3786034 |
Title is not available
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3787378 |
Title is not available
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