preparation (Total 866060 Patents Found)

The invention relates to essentially linear polyurethane elastomers, having improved properties, made from polyester or polyether diols, diisocyanates and chain extenders, the latter having liquid-crystalline properties; and also films and, in particular, fibres which are prepared on the basis of such liquid-crystallin...
Fungicides containing ammonium salts of polyacids of the formula ##STR1## where R 1 is alkyl, cycloalkyl, cycloalkylalkyl or aralkyl, R 2 and R 3 are each hydrogen, hydroxyl, CH 2 OH or C 1 -C 3 -alkyl, Z is CH 2 , O, S, CO or (CH 2 ) 2 and Y is an anion of a copolymeric acid....
Disclosed are herein optically active ester derivatives represented by the formula (I): ##STR1## (wherein R 1 represents an alkyl group having 3 to 20 carbon atoms; R 2 represents an optically active alkyl or alkoxyalkyl group having 3 to 15 carbon atoms optionally substituted by halogen atoms; Y represents --O--, --...
An immunoglobulin is provided which consists essentially of a mono-specific, hetero-molecular antibody which is mono-specific to a single antigenic or allergenic determinant. The antibody is specific to the H-epitope of a protein antigen or allergen. The H-epitope is defined by a sequence of at least six amino acids co...
A process for preparing a compound of formula (I) ##STR1## (where (i) R 1 is an ethoxy group and R 2 is a hydrogen atom, (ii) R 1 is a hydrogen atom and R 2 is a bromine atom or (iii) (R 1 and R 2 together with the carbon atom to which they are attached represent>C═O) which comprises stereoselectively reduci...
Process for the production of TMEDA in high yield by reducing 2,3-dimethyl-2,3-dinitrobutane with hydrogen in the presence of a chromium promoted Raney cobalt catalyst. A solution of 2,3-dimethyl-2,3-dinitrobutane in a suitable solvent is fed to a reactor while avoiding the accumulation of 2,3-dimethyl-2,3-dinitrobutan...
The present invention relates to the use, for the preparation of drugs to increase the survival rate of transplant patients, including renal and heart transplant patients, of a therapeutically effective amount of an angiotension II receptor antagonist compound, such as the class of substituted imidazoles represented by...
A PROCESS IS PROVIDED FOR THE PREPARATION OF CERTAIN DIANHYDRIDES BY BRINGING INTO REACTIVE COMBINATION IN THE PRESENCE OF A POLYMERICATION INHIBITOR, MALEIC ANHYDRIDE AND A VINYL BENZENE, SUCH AS STYRENE OR RING-SUBSTITUTED LOWER-ALKYL STYRENE UNDER A NON-FLAMMABLE ATMOSPHERE COMPRISING A MAJOR AMOUNT OF INERT GASES, ...
The present discovery concerns new organosilanes which possess two silane groups, one of which is located at each end of a polymeric molecule. These compounds are useful in improving the physical properties of synthetic thermoplastic materials which are based on formaldehyde or trioxane and inorganic solids....
The process of direct synthesis of trifluoromethyl copper and trifluoromethyl aromatics, both intermediate reagents useful in direct synthesis of certain perfluoroalkyl compounds. The process involves a direct reaction between on the one hand an aromatic halide and a difluorodihalomethane and on the other hand copper a...
1-(4-Hydroxy-3,5-di-tert.-butylbenzoyl)homopiperazine and various derivatives thereof substituted on the nitrogen are prepared starting from 4-hydroxy-3,5-di-tert.-butylbenzoic acid or its derivatives and homopiperazine or appropriate derivatives thereof. The compounds and their physiologically tolerated acid add...
The present invention relates to laminated acoustical tile products which are derived from compositions that are suitable to provide rigid, water-resistant phosphate ceramic materials. The tile products comprise a decorative facing comprising a substantially open-celled character and a backing layer of higher density, ...
A method for the preparation of water-soluble, cationic amine polymers by the continuous or batch-wise reaction of a polymer having primary, secondary or tertiary amine functions in its side chain or primary chain as a starting material, wherein the reaction is carried out with an epoxide, a glycidyl ether or a mixture...
Novel peptides of the formula (I") ##STR1## in which R 1 is hydrogen or acyl, R 2 c is lower alkyl, R 3 c is optionally N-substituted indolylmethyl, R 4 is hydrogen, lower alkyl, C 6-10 ar(lower)alkyl, amino(lower)alkyl, protected amino (lower)alkyl, carboxy(lower)alkyl, protected carboxy...
Acid-stable and cationic-compatible reticulated bacterial cellulose compositions, containing co-agents and/or cationic surfactants, that are useful rheological modifying agents and stabilizing agents for suspensions, emulsions and foams, and their methods of preparation are disclosed....
Antimicrobially active liquid composition formulation which comprises 1,2-benzisothiazolin-3-one and at least one amine-oxyethylate of the formula ##STR1## wherein R is alkyl or alkenyl each having 2 to 22 carbon atoms and the sum of m and n is a number from 2 to 30 is used as an improved biocide to preserve and protec...
An expanded shaped product with improved flexural compressibility and surface properties comprising starch and a hydrophobically modified acid anhydride or its acid hydrolyzed counterpart and the method of preparing such product by extrusion....
In a radiation image storage panel comprising a support, a phosphor layer containing a stimulable phosphor and a binder, and a protective film superposed in this order, the improvement in which the thickness of the phosphor layer at the edge on at least two sides being opposite to each other is less than the mean thick...
A process for the preparation of carbonyl compounds by oxidation of alcohols in the gas phase with a gas containing oxygen in the presence of catalysts containing copper or silver and a phosphorus compound that is volatile under the conditions of the reaction, the ratio of the mass of phosphorus to the mass of the alco...
The subject of the invention is a process for the preparation of capsular polysaccharides characteristic of Staphylococcus aureus, comprising the use of coagulase-negative strains of staphylococci for the preparation of these polysaccharides. The capsular polysaccharides obtained can be used for the preparation o...
Disclosed herein is a process for producing a color filter, which comprises the steps of forming a pre-cured black matrix pattern having a water repellency on a transparent substrate, applying color inks to the portions of the substrate corresponding to the spaces of the pre-cured black matrix pattern, and complete cur...
The object of the invention is to provide a new external preparation for skin having high melanine formation inhibition and also anti-aging effect, and desired drug effect can be obtained without degradation in a pharmaceutical preparation. The external preparation for skin includes the extract of Pueraria mirif...
This invention relates to alginate gel pellets containing living fungus capable of producing conidia when exposed to sufficient light and moisture. Fungi are selected and grown for sufficient time to produce inoculum. The fungus cultures are harvested and homogenized for approximately 30 seconds and diluted to a ratio ...
A process for the continuous preparation of ABS polymers by free-radical-initiated polymerization of, in particular, styrene and acrylonitrile in the presence of polybutadiene, in the presence or absence of a solvent, in a reactor cascade comprising at least 3 stirred reactors operating essentially without back-mixing,...