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7029758 |
Melanin polyvinyl alcohol plastic laminates for optical applications
The present invention relates to the use of water soluble melanin in solid plastic films of polyvinyl alcohol to be used in conjunction with other plastics to make laminated sheets or lenses. Such...
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6881789 |
Polyubiquitin based hydrogel and uses thereof
The present invention relates to a novel biopolymer consisting of a three-dimensional cross-linked mixture of (a) a cross-linking agent, activated with an activating agent, dissolved in a aqueous...
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6841644 |
Biopolymers obtained by solid state irradiation in an unsaturated gaseous atmosphere
Disclosed are modified naturally occurring biocompatible biopolymers of plant and animal origin made by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene...
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6716903 |
Coating composition for the manufacture of printable coated paper and board, component of the coating composition and process for the manufacture of paper and board
A coating mix for the production of coated paper and board is described in form of an aqueous dispersion with a solids content of 50 to 80% consisting of pigments, binders, and additives. The...
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6686161 |
Methods and compositions for attachment of biomolecules to solid supports, hydrogels, and hydrogel arrays
The present invention provides solid supports (e.g., glass) and polymer hydrogels (particularly polymer hydrogel arrays present on a solid support) comprising one or more reactive sites for the...
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6586493 |
Polysaccharide-based hydrogels and pre-gel blends for the same
Disclosed are hyaluronate-containing hydrogels having angiogenic and vascularizing activity and pre-gel blends for preparing the hydrogels. The hydrogels contain a cross-linked matrix of a...
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6517933 |
Hybrid polymer materials
The invention is directed to a hybrid polymer material or system that combines naturally occurring building blocks with synthetic building blocks. The sets of naturally occurring and synthetic...
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6297319 |
Water-absorbing agent and production process therefor
The present invention provides: a process for producing a water-absorbing agent by using a crosslinking agent of high safety, wherein the water-absorbing agent is excellent in the absorption...
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6291582 |
Polymer-protein composites and methods for their preparation and use
A method of preparing a polymer-protein composite based upon placing a protein in solution in an organic phase via the ion-pairing of the protein with a surfactant. The polymer-protein composites...
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6037144 |
Method of preparing a biological material for use in ophthalmology
A collagen containing substrate comprising cattle basal membrane is conditioned by incubating the membranes in a mixture of pepsin, hyaluronidase and acetic acid and separating the collagen from...
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5910537 |
Biocompatible, optically transparent, ultraviolet light absorbing, polymeric material based upon collagen and method of making
The present invention is ultraviolet light absorbing biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers,...
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5910518 |
Oxygen permeable contact lens having high durable hydrophilic surface and method for producing the same
A hydrophilic oxygen permeable contact lens having a front surface which is not to be in contact with the cornea of a human eye when the contact lens is worn on the human eye, wherein at least the...
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5837747 |
Crosslinkable polysaccharides, polycations and lipids useful for encapsulation and drug release
The present invention relates to a new form of biocompatible materials (e.g., lipids, polycations, polysaccharides) which are capable of undergoing free radical polymerization, e.g., by using...
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5834556 |
Graft copolymer of polycationic species and water-soluble polymers, and uses therefor
In accordance with the present invention, there are provided methods to render cells non-adhesive and/or non-immunogenic with respect to macromolecules typically encountered in culture media or in...
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5763557 |
Grafting of a polymer onto cellophane by ultrasonic induced free radical polymerization
The invention relates to the chemical bonding of a polymer/or polymers onto non-metallic substrates such as cellophane by ultrasonic techniques. The cellophane film is preactivated by contacting...
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5763504 |
Photcurable glycosaminoglycan derivatives, crosslinked glycosaminoglycans and method of production thereof
Photocurable glycosaminoglycan (GAG) derivatives and crosslinked glycosaminoglycans, which are highly safe and biocompatible, a method of preparing such photocurable GAG derivatives readily...
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5733538 |
Surface-modifying copolymers having cell adhesion properties
A hemocompatible surface-modifying additive is provided for modifying polyurethane or polyurethane urea substrates. The additive has a polyurethane or polyurethane urea hard block or an alternative...
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5714560 |
Water-soluble or water-dispersible graft polymers of proteins as leather tanning agents
Water-soluble or water-dispersible graft polymers which are obtainable by free-radical-initiated polymerization of (A) a monomer or monomer mixture comprising (a) from 20 to 100% by weight of...
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5661218 |
Biocompatible optically transparent polymeric material based upon collagen and method of making
The present invention is biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with...
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5473034 |
Method for producing protein-synthetic polymer conjugate and said conjugate produced thereby
A method for producing an ester of a protein by an esterification reaction of an aqueous solution, fine powder or suspension of a protein having free carboxyl groups with an excess amount of...
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5376692 |
Method of binding using irradiation and product with albumin bound to biomaterials
A medical device has one or more polymeric substrates each treated with a chemically binding coating to make each polymeric substrate compatible for contact with blood. A modified natural and...
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5286829 |
Biocompatible polymer material and a process for producing same
A biocompatible material which is the product of graft-copolymerization of a water-soluble vinyl and/or an acrylate monomer with a sorption complex of polysilicic acid and collagen that has been...
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5260396 |
Preparation of water resistant films and coatings and use thereof
Water resistant films and coatings are prepared by treating films or coatings of water soluble or dispersible grafted proteins prepared with monoethylenically unsaturated monomers at above 40° C....
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5219895 |
Collagen-based adhesives and sealants and methods of preparation and use thereof
Collagen-based compositions as adhesives and sealants for medical use and preparation thereof are described. Prior to polymerization, soluble or partially fibrillar collagen monomers in solution...
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5208075 |
Sizing agent for staple fiber and filament yarns
Water-soluble or water-dispersible grafts of proteins with monoethylenically unsaturated monomers are used as sizing agents for staple fiber and filament yarns.
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5207941 |
Use of water-soluble or water-dispersible grafted proteins as detergent additives
Phosphate-free and low-phosphate detergents which contain surfactants as essential constituents also contain from 0.1 to 20% by weight, based on the particular formulation, of water-soluble or...
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5187207 |
Melanin hydrophilic contact lenses
A hydrophilic contact lens is disclsoed incorporating melanin that protects the eye from harmful radiation and superoxide.
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RE33997 |
Biologically stabilized compositions comprising collagen as the minor component with ethylenically unsaturated compounds used as contact lenses
Hydrogels are prepared by subjecting to poymerization conditions an aqueous admixture comprising a major amount of an organic monomer which is characterized by a polymerizable ethylenic group...
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5112883 |
Medium incorporating melanin as an absorbing pigment against electromagnetic radiation
The present invention is directed to a medium incorporating melanin for radiation protection.
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5075401 |
Method of making graft copolymers
A graft copolymer is made by grafting, by a free radical reaction mechanism in aqueous solution, water soluble ethylenically unsaturated monomeric material on to a water soluble substrate having...
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5036115 |
Optical lens system incorporating melanin as an absorbing pigment for protection against electromagnetic radiation
Melanin is used as the absorbing pigment for radiation protective eyeware. Thus, a melanin-plastic copolymer was formed by adding a catalyst (benzoyl peroxide) to the liquid monomer, diethylene...
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5034428 |
Immobilized biomolecules and method of making same
A method of biomolecule immobilization is described in which the biomolecule itself or, alternatively, a monomer-conjugated biomolecule, is grafted with free monomer onto a hydrophilic,...
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4997682 |
Paper coating composition
An improved process of cast coating and the coating composition used therein produces a paper coating which has exceptional brightness, gloss, smoothness, flexibility, resistance to drum adhesions...
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4963604 |
Polymeric pigments used in paper coating compositions and a process for their preparation
A polymeric or plastic pigment, useful as a partial replacement for the inorganic pigment conventionally employed in paper coating compositions is disclosed. The pigment comprises a copolymer of an...
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4855338 |
Method for treating grafted protein latices
Microfluidization of latices of a graft copolymer of a conjugated diene monomer and a vinyl aryl monomer on a protein such as a soy protein reduces the viscosity of the graft copolymer latex.
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4837087 |
Coating binder additive
A coating binder additive is prepared comprising a blocked glyoxal resin mixed with a vinyl or acrylic water soluble polymer which is reactive with free glyoxal.
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4822867 |
Protein polymer grafts
A novel class of materials and processes used in their preparation are described. These materials are comprised of man-made polymers grafted onto protein backbone, specifically onto protein...
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4812550 |
Preparation of latices
Continuous ultrasonic irradiation during the free radical aqueous graft or over copolymerization of an unsaturated monomer on a protein provides a latex of reduced viscosity and increased solids...
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4806610 |
Method for making latices
Continuous homogenization during the free radical aqueous graft or over copolymerization of an unsaturated monomer on a protein provides a latex of reduced viscosity.
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4689381 |
Modified protein adhesive binder and process for producing using cationic monomers
A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is formed of a vegetable protein material and said dispersion...
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4687826 |
Modified protein adhesive binder and process for producing
A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is treated with hydroxy alkyl acrylate in an amount sufficient...
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4607089 |
Grafted soy protein latex
A conjugated diene such as butadiene-1,3 and a vinyl aryl monomer such as styrene are graft or over copolymerized on a dissolved or finely divided anionic fully caustic treated soy protein in...
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4504644 |
Protein derivative containing grafted ultraviolet-absorbing radicals, the process for its preparation and composition in which it is present
The invention describes a protein derivative which has a molecular weight of 500 to 50,000 and has been chemically modified by grafting onto the protein chain radicals which absorb ultraviolet...
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4478976 |
Water-insoluble protein material, its preparation and its use
A biologically active protein which is bonded to a water-insoluble porous copolymer based on N-vinylimidazole and/or substituted N-vinylimidazoles and monomers which can be copolymerized therewith,...
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4447562 |
Amino-polysaccharides and copolymers thereof for contact lenses and ophthalmic compositions
Aminopolysaccharides and copolymers thereof, primarily those of N-acetyl-D-glucosamines and derivatives and various monomers, is described.
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4443365 |
Method for determination of the valproic acid and reagents therein
δ-substituted derivatives of valproic acid are provided for conjugation to antigenic compositions, particularly proteins and enzymes. The antigenic conjugates are employed for the production of...
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4414147 |
Methods of decreasing the hydrophobicity of fibroblast and other interferons
A method for improving the stability and usefulness of interferon, including human fibroblast interferon, is disclosed. In this method, interferon is bonded to a non-hydrophobic substance to create...
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4356173 |
IgM Derivatives and process for the preparation thereof
IgM derivatives into which acyl groups expressed by the following formula (I) are introduced to make their anticomplement activity weak by acylating the free amino groups existing in IgM up to...
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4348479 |
Recovery of proteinaceous material having reduced nucleic acid levels
The present invention relates to a process which comprises recovering proteinaceous materials from nucleoprotein complexes by derivatizing the proteinaceous material with a cyclic anhydride,...
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4338394 |
Process for hardening photographic gelatin
Gelatin-containing layers of photographic materials are hardened by adding a compound containing from 2 to 6 sulfonyl ethyl sulfate groups in the form of its salts and activating the compound by...
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