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| Number | Title | Issue Date |
| 4820692 | Methylthioribose analogs, their preparation and use as medicinal agents and biocides Compounds of the formula: ##STR1## wherein R is H, Cl, F, Br, I or R1 S--, in which R1 is C1 -C10 linear or branched chain alkyl or halogenated linear or branched chain alkyl, and wherein R2, R | 04/11/1989 |
| 4814515 | Method of manufacturing a modified polyhydroxy compound A method of manufacturing a modified polyhydroxy compound, which is characterized in that a polyhydroxy compound is heated for 30 minutes or more at a temperature ranging from 150° to 250° C. under stirring and in the presence of tin, tin compounds such... | 03/21/1989 |
| 4774325 | New 8-substituted nucleoside and purine derivatives, the process for the preparation thereof and the pharmaceutical compositions containing them New 8-substituted nucleoside and purine derivatives of the general formula: ##STR1## wherein R represents an amino group or an hydroxy group possibly in the corresponding keto tautomeric form, R1 is hydrogen or an amino group, R2 | 09/27/1988 |
| 4769363 | Beta-glucan A novel beta-1,3-glucan (ganoderan) is produced by culturing a microorganism of genus Ganoderma. Ganoderan is composed of a backbone structure of beta-1,3-linked D-glucopyranose residues bearing, at some of the C-6 positions, side chains of single beta-1,... | 09/06/1988 |
| 4767846 | Production of polymeric polyols Polymeric polyols are prepared by reacting a polyhydroxy initiator compound with an epoxide in the presence of alkali metal hydroxide catalyst used in an amount of at least 10% by mole based on the molar amount of polyhydroxy initiator compounds. The poly... | 08/30/1988 |
| 4758282 | Process for dry cationization of galactomannans A process for the dry cationization of galactomannans by reaction with alkylidene epoxides in an alkaline medium in the presence of water at 5° to 60° C. and in the presence of finely divided, hydrophilic silicic acid.... | 07/19/1988 |
| 4757138 | Process for producing etoposide The present invention relates to a process for producing etoposide by reacting a 4'-halogenoacetyl-4'-demethylepipodophyllotoxin-ଲ-D-2,3-di-O-halogeno acetyl-4,6-O-ethylideneglucoside represented by the general formula: ##STR1## wherein R | 07/12/1988 |
| 4721781 | Method for lowering reducing sugar content of glycoside compositions A method for lowering the reducing sugar content of glycoside compositions by adding 1 to 10 wt. % of an orthoformic ester or an acetal of a low-boiling ketone is described. Reducing sugar contents can be lowered from 1 to 3 wt. % to 0.05 to 0.3 wt. % usi... | 01/26/1988 |
| 4721780 | Glycoside preparation directly from aqueous saccharide solutions or syrups Glycoside products are successfully prepared directly from aqueous saccharide solutions or syrups, and with acceptably low levels of undesired higher polysaccharide by-products, by dissolving same in the desired alcohol reactant and contacting the resulti... | 01/26/1988 |
| 4716222 | Substrates for hydrolases Chromogenic substrates of the formula A--O--B are described, in which A represents the radical in the ion A--O- of a compound A--OH, whose absorbance is measured photometrically after hydrolysis of A--O--B, while B is the radical in a compound ... | 12/29/1987 |
| 4709020 | Heptaose compounds and preparation thereof The present invention provides compounds of the general formula: ##STR1## in which R and R1, independently of one another, each represent a straight-chained or branched alkyl or alkoyl radical containing up to 6 carbon atoms or a phenyl ra... | 11/24/1987 |
| 4703114 | Polyethers having tertiary alcoholic terminals Polyethers of the formula: ##STR1## wherein: R is the residue of a starting active hydrogen compound with removal of the active hydrogen atom, R1 is a C1 -C10 alkyl or aryl, R2 is a C1 -C10 | 10/27/1987 |
| 4684719 | ,-trehalose fatty acid diester derivative Disclosed herein are novel ,-trehalose fatty acid diester derivatives useful as carcinostatic substances and surface-activating materials and represented by the general formula (I): ##STR1## wherein R1 means an alkyl group ha... | 08/04/1987 |
| 4681936 | Preparation of sugar ketals Sugar ketals are prepared by reacting a sugar with a ketone in the presence of an acid catalyst by a process in which A. a molecular boron trifluoride compound or trifluoromethanesulfonic acid is used in an amount of only from 0.01 to 10% by weight, based on t... | 07/21/1987 |
| 4665164 | Polysaccharide crosslinked separation material and its preparation A separation material of crosslinked agarose in which the agarose is crosslinked using at least one bi- or polyfunctional crosslinking agent, which gives a chain of 6 to 12 atoms between two binding points, on one hand and using at least one bifunctional ... | 05/12/1987 |
| 4665239 | Polyethers modified with alpha olefin oxides Polyethers having molecular weights of about 1000 to about 75,000 modified with alpha-olefin oxides having about 12 to about 18 carbon atoms exhibit increased thickening efficiency in aqueous systems. About 1 to about 20 percent by weight based upon the w... | 05/12/1987 |
| 4659809 | Process for production of sugar ketals A process is disclosed for production of a sugar ketal, which comprises reacting a sugar with a ketone in the presence of antimony pentachloride or antimony pentafluoride. The process offers characteristic features that the reaction can be allowed to proc... | 04/21/1987 |
| 4659811 | Alkaline refined gum and use thereof in improved well-treating compositions A process for the alkaline refining of gum splits is provided. Also provided are hydraulic fluid fracturing compositions which contain alkaline refined gum and which exhibit superior solution viscosity and low residue after break. Also provided is a metho... | 04/21/1987 |
| 4659808 | Process for producing ketals of 2-ketogulonic acid or its esters A novel process is disclosed for production of ketals of 2-ketogulonic acid or of its esters, which comprises reacting 2-ketogulonic acid or its esters with a ketone in the presence of a ketal formation catalyst. The process is advantageous from the indus... | 04/21/1987 |
| 4612373 | Trichloro, 6-substituted sucrose compounds, compositions and uses therefor Compounds of the general formula: ##STR1## (in which X represents a hydrogen atom or an alkoxy or arylalkoxy group) are new compounds; those where X represents a hydrogen atom or a methoxy group are potent sweeteners while those with a cleavable 6-et... | 09/16/1986 |
| 4606918 | Polyoxypropylene-polyoxyethylene block polymer based adjuvants A method for enhancing the immunogenicity of an antigen is emulsifying it with a polyoxypropylene-polyoxyethylene block polymer, a glycol ether-based surfactant, a metabolizable non-toxic oil, isoosmotic saline, and an immunopotentiating amount of an immu... | 08/19/1986 |
| 4603196 | Process for the preparation of ଲ-methyldigoxin The invention relates to a process for the preparation of ଲ-methyldigoxin by the selective methylation of digoxin with dimethyl sulfate in the presence of a basic strontium compound and, if appropriate, of an inert inorganic adsorbent. Strontium hyd... | 07/29/1986 |
| 4602085 | Catalytic process for the production of hydroxyamine derivatives of alpha methyl glucoside It has been discovered in accordance with the present invention that oxyalkylated derivatives of alkyl glucosides can be effectively reductively aminated by bringing the oxyalkylated alkyl glucoside feedstock into contact with a reductive amination cataly... | 07/22/1986 |
| 4585858 | Starch-based polyether polyols This application discloses polyether products of starch with several different etherifying agents, preferably the alkylene oxides, where the moles of etherifying agent per anhydroglucose unit are in the range from about 3.5 to about 50. Also disclosed are... | 04/29/1986 |
| 4563421 | Method for determining the presence of endohydrolase in a liquid and composition therefor What are disclosed are polysaccharide derivatives of the formula ##STR1## in which n denotes a number from 100 to 12,500 and R denotes hydrogen, a carboxyalkyl or hydroxyalkyl group with 1 to 5 carbon atoms in the alkyl radical or a detectable molecu... | 01/07/1986 |
| 4507475 | Process for purification of crude polyether polyols A process for purifying crude polyether polyols which are prepared by anionic polymerization of alkylene oxides in the presence of basic catalysts. The polyols are mixed with water and ortho-phosphoric acid in certain quantity ratios, an adsorption agent ... | 03/26/1985 |
| 4499264 | Preparation of amino polyols An improved method is disclosed for producing amino polyols useful in preparing polyurethane foams. The improvement concerns charging ammonia, a primary amine or a secondary amine to the reaction vessel at the end of the oxide digestion step. The amine or... | 02/12/1985 |
| 4491660 | Matrix polymers for binding endotoxins An endotoxin binding material affixed to a support is disclosed. One embodiment is a matrix material capable of binding endotoxins and comprising a polar, water-insoluble, high molecular weight polymer support to which is attached groups which adsorb endo... | 01/01/1985 |
| 4470975 | Method and composition for the elimination of water from an animal body It has been found that certain insoluble hydrophilic cross-linked polysaccharides are useful pharmaceutical agents in diverting water elimination from the renal route to the gastrointestinal route, and removing excess water from the body by the gastrointe... | 09/11/1984 |
| 4465827 | Process for preparing high polymeric substance having saccharide side chains Disclosed are novel high polymeric substances having saccharide side chains, suitable as a high polymeric material having several functions for medical treatments and a process for preparing thereof.... | 08/14/1984 |
| 4464530 | Process for production of sugar ketals A process is disclosed for production of a sugar ketal, which comprises reacting a sugar with a ketone in the presence of hydrogen iodide. The formation of unfavorable by-products can be reduced to a trace amount. The process offers the objective ketal in... | 08/07/1984 |
| 4460767 | Process for production of sugar ketals A process is disclosed for production of a sugar ketal, which comprises reacting a sugar with a ketone in the presence of (A) (1) copper, or an oxide, hydroxide or salt thereof and (2) hydrogen chloride or hydrogen bromide, or (B) cupric chloride or cupri... | 07/17/1984 |
| 4456586 | Non-ionic surface-active agents derived from glucose, process for their preparation and compositions containing them Non-ionic surface-active agents of the formula are disclosed: ##STR1## in which a=0 or 1, R denotes a C8 -C30 aliphatic or alicyclic radical, x+y totals a number from 1 to 10 and, in each unit, one of Z1 and Z2 | 06/26/1984 |
| 4454315 | Carboxymethylated derivatives of ଲ-1,3-glucan It has been found that water-insoluble, thermogelable ଲ-1,3-glucan produced by microorganisms, lower polymers obtainable upon partial hydrolysis of the glucan or, carboxymethylated derivatives of said glucan or of said lower polymers are useful for ... | 06/12/1984 |
| 4446313 | Polyether polyol process Process for the manufacture of a polyether polyol by reaction between an organic compound containing 2 or more active hydrogen atoms in the molecule and an alkylene oxide in the presence of a catalyst comprising a tertiary amine NRR'2, in which... | 05/01/1984 |
| 4401772 | Methyl glucoside-amine-based polyether polyols and polyurethane foams prepared therefrom A polyurethane foam which is a reaction product of a polyol reactant, an organic polyisocyanate reactant, a reaction catalyst and a foaming agent, said polyol reactant is made by (1) reacting starch with methanol in the presence of an acid catalyst to for... | 08/30/1983 |
| 4398023 | ଲ-1,3-Glucanpolyol, process for preparation thereof, and utilization thereof ଲ-1,3-glucanpolyol derived from ଲ-1,3-glucan produced by a ଲ-1,3-glucan-producing strain of the genus Pestalotia, said glucanpolyol having an intrinsic viscosity [η] of about 1 to about 10 and comprising a main chain having as repeating... | 08/09/1983 |
| 4393203 | Process of preparing alkylpolysaccharides Long chain fatty alcohols can be removed from alkylpolysaccharide products in thin film evaporators to achieve fatty alcohol levels of less than about 2% without excessive discoloration of the alkylpolysaccharide.... | 07/12/1983 |
| 4393248 | Flame retarded halogenated polyol A flame retardant, halogenated polyol having the formula ##STR1## wherein R is an aliphatic radical substituted with at least 1 hydroxyl groups, X is a halogen, and X' is a halogen or hydrogen, is used in the reaction mixture for preparing flame reta... | 07/12/1983 |
| 4385173 | Polyol polyether preparation process A process for the preparation of polyethers by reaction between a polyol reactant having a melting point above 80° C. and alkylene oxide, during which a substantially continuous flow of alkylene oxide is passed through a bed of the polyol. The polyether ... | 05/24/1983 |
