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| Number | Title | Issue Date |
| 4834753 | Synthetic intraocular lens swellable in swelling agent and a method for preparation thereof The invention relates to a synthetic intraocular lens swellable in physiologic saline which is made from a polymer or a copolymer, at least one component of which is hydrophylic and the other one may be hydrophobic, crosslinked or non-crosslinked, whereas... | 05/30/1989 |
| 4808399 | Composition for diagnosing the transport function of the fallopian tube and a method for preparing said composition The present invention pertains to a preparation for diagnosing the transport function of the fallopian tube and to a method for making such a preparation. The diagnostic preparation for investigation of the transport function of female fallopian tube, com... | 02/28/1989 |
| 4808716 | 9-(phosponylmethoxyalkyl) adenines, the method of preparation and utilization thereof The invention relates to 9-(phosphonylmethoxyalkyl)adenines of the general formula I ##STR1## wherein R1 is a hydrogen atom, and alkyl group containing one to three carbon atoms, or a hydroxymethyl group, R2 is a methylene, ... | 02/28/1989 |
| 4806681 | Process for producing cinnamic acid from 1,1,1,3-tetrachloro-3-phenylpropane This invention relates to a process for preparing cinnamic acid by hydrolysis of 1,1,1,3-tetrachloro-3-phenylpropane with acetic acid, trifluoroacetic acid or formic acid, optionally in the presence sulphuric acid, phosphoric acid, para-toluenesulphonic a... | 02/21/1989 |
| 4806287 | Method for polymerization cast molding of lenses from hydrophilic gels A method and apparatus for the polymerization cast molding of lenses from hydrophilic gels. A hydrophobic liquid which is essentially immiscible with a hydrophilic polymerization mixture is introduced into a mold having a hydrophobic surface, followed by ... | 02/21/1989 |
| 4794177 | Method for the production of bead dextran materials for gel chromatography The invention pertains to a method for the production of bead dextran materials for gel chromatography. The subject of the invention is a method for the production of bead dextran materials for gel chromatography, wherein dextran is, before or during the ... | 12/27/1988 |
| 4775731 | Hydrophilic three dimensional polymer and a method for production thereof Hydrophilic three dimensional polymers, the prevailing mass of which is formed by structural units corresponding to monomers miscible with water at any ratio, and the method for their production, wherein one weight part of the monomers miscible with water... | 10/04/1988 |
| 4772514 | Protective layer for carbonaceous materials and method of applying the same A protective layer for carbonaceous materials, especially graphite electrodes, applied by plasma-coating method comprised of 65-98 w /o of metal aluminum, 1-20 w /o of combined metal silicon with silica (SiOl) and up to 15... | 09/20/1988 |
| 4755590 | Method for postpolymerization of polyamide granules after polymerization in melt and an equipment for performing this method The invention pertains to a method for postpolymerization of granules of polyamide based on &3xb5;-caprolactam and formed by the anionic polymerization in melt and solves the problem of decreasing the content of low-molecular-weight substances in granules... | 07/05/1988 |
| 4752391 | Column for preparative liquid chromatography A column for preparative liquid chomatography is provided with an inlet tube (5) for injected sample, which is closed on the end with a gauze or fritted plate (6), passes through the center of a lower terminal (3), and ends in the distance equal to 70 to ... | 06/21/1988 |
| 4745161 | Soluble and biodegradable polyamino acid activated for bonding of biologically active compound The invention pertains to copolymers activated for bonding of biologically active compounds and to a method for preparation thereof. Soluble and biodegradable copolymers activated for bonding of biologically active compounds which have their main chain formed ... | 05/17/1988 |
| 4707379 | Protective layer for carbonaceous materials and method of applying the same A protective layer for carbonaceous materials, especially graphite electrodes, applied by plasma-coating method comprised of 65-98 w/o of metal aluminum, 1-20 w/o of combined metal silicon with silica (SiO2) and up to 15 w/o of oxygenous compou... | 11/17/1987 |
| 4707516 | Polymeric sulfoxide based on the polymer of vinylalcohol A polymeric sulfoxide based on a polymer or copolymer of vinyl alcohol is disclosed, as well as a method of producing it. Sulfoxide containing polymers are useful as catalysts, as membranes and to hold metal cations. Hydrophilic and hydrophobic characteri... | 11/17/1987 |
| 4696683 | Method and equipment for separation of solids from gaseous mixtures The invention solves a method and an apparatus for the separation of solids from gaseous mixtures especially the separation of phthalic anhydride after its desublimation from mixtures with vapours of sublimable substances, steam, air or inert gases, which... | 09/29/1987 |
| 4692243 | Column for liquid chromatography The invented column for liquid chromatography consists of a glass tube, which is inserted into a metallic tube. The metallic tube is provided with recesses in its inner wall at both ends, which accommodate conic tightening rings from metal together with c... | 09/08/1987 |
| 4690989 | Method for the single-step production of vinyl polymers The invention relates to a method and to a reactor for the single-step polymerization of vinyl monomers by a heterogeneous polymerization in bulk by means of organometalic catalysts. A method according to the invention consists in charging a vertical reac... | 09/01/1987 |
| 4683062 | Method of circulation of a liquid phase through a solid phase particularly for biocatalytical reactions and a device for realization thereof The method of circulation according to the invention consists in causing a part of the liquid part to rotate whereby centrifugal forces causes the rotating part of the liquid phase to form a rotating vortical liquid spindle that exerts a suction effect. T... | 07/28/1987 |
| 4666267 | Perforated soft contact lens and a method for manufacturing thereof A perforated soft contact lens which has at least one perforation formed inside the optical zone of lens, i.e. in the distance 0 to 3.5 mm from the lens center. It is manufactured by placing the lens in a swollen state with its inner surface on an elastic... | 05/19/1987 |
| 4659849 | Macromolecular coordination compound containing platinum with antitumor activity in rodents A macromolecular compound with antitumor activity in which hydroxy groups in side chains of a polymer have the character of primary, secondary or tertiary alcohols and are completely or in part esterified with carboxyl in the position C4 of 1,2,4-tricarbo... | 04/21/1987 |
| 4659825 | Isomeric O-phosphonylmethyl derivatives of enantiomeric and racemic 9-(2,3-dihydroxypropyl)adenine This invention relates to isomeric O-phosphonylmethyl derivatives of the formula I ##STR1## wherein R5 designates an adenin-9-yl moiety, R4 are alternately a hydrogen atom and a --CH2 P(O)(OH)2 group, and t... | 04/21/1987 |
| 4656236 | Terpolymers having the character of hydrogels This invention relates to terpolymers which are capable of forming hydrogels having very good compatibility with living tissues and may be used as substitutes for damaged tissues, as in the form of implants and various prostheses. The terpolymers are comp... | 04/07/1987 |
| 4634604 | Method for producing a biocompatible layer on the surface of particles of porous synthetic sorbents The invention pertains to the method for producing a biocompatible layer on the surface of particles of porous synthetic sorbents. An object of the invention consists in the method for producing a biocompatible layer on the surface of particles of porous synth... | 01/06/1987 |
| 4622367 | X-ray contrast spherical hydrogel particles based on polymer and copolymers of acrylates and methacrylates and the method for preparation thereof The invention pertains to X-ray contrast spherical hydrogel particles based on polymers and copolymers of acrylates and methacrylates and to a method of their preparation. The subject of this invention are X-ray contrast spherical hydrogel particles based... | 11/11/1986 |
| 4613502 | Proteolytic, dry biopolymeric composition for treatment of wounds, and method of using same The invention pertains to a cover of wounds in the form of a powder or a dry powdery fluid and is useful in covering and treating of ulcerous and necrotic wounds. It consists of animal or fungous chitin and chitosan in a powdered form of particle size 0.0... | 09/23/1986 |
| 4107121 | Ionogenic hydrophilic water-insoluble gels from partially hydrolyzed acrylonitrile polymers and copolymers, and a method of manufacturing same The invention relates to new ionogenic hydrogels based on partially hydrolyzed polymers containing, in the starting material, at least 60, advantageously at least 80% (mol.) of acrylonitrile units, said hydrogels being characterized by a weakly ampholytic... | 08/15/1978 |
