Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.

Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.

Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fibre consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fibre being less than 10% at 170° C.

Abstract: A low volume nonwoven separator and an electrochemical cell employing the separator are provided. The cell includes a positive electrode and a negative electrode. The nonwoven separator is disposed between the positive electrode and negative electrode. The nonwoven separator comprises, prior to insertion in the cell, a non-compressed single layer dry thickness in the range of 0.04 to 0.09 mm, and an average pore size of no greater than 14 &mgr;m. The cell further includes an electrolyte in contact with the separator and the positive and negative electrodes.

Abstract: Test carrier for the determination of an analyte from whole blood. Within a test field, it contains a reagent system. The test field has a sample application side to which the blood sample is fed, and a detection side on which, as a result of the analysis reaction, an optically detectable change occurs. It is designed so that the red blood corpuscles cannot gain access from the sample application side to the detection side, and it contains pigment particles for optical blockage of the red blood pigment.Reliable separation in combination with simple manufacture is achieved in that the test field (5) has a combined blood pigment separation and detection layer (1) which, in a single, very thin homogeneous layer, fulfils the functions of separation of the red blood corpuscles and optical detection.

Abstract: The present invention is concerned with the use of certain 3-aminopyrazolo-heterocyclic compounds for the colorimetric determination of hydrogen peroxide, hydrogen peroxide-forming systems, peroxidase, peroxidate-active substances and electron-rich aromatic compounds. The present invention is also concerned with corresponding processes of determination and with agents appropriate therefor. Furthermore, the present invention is concerned with new 3-aminopyrazolo-heterocyclic compounds.

Abstract: The present invention is concerned with aniline derivatives of the general formula: ##STR1## wherein R.sub.1 is hydrogen or a lower alkyl or aryl, R.sub.2 is hydrogen or a lower alkyl which can be substituted by hydroxyl, amino carboxyl, lower alkoxycarbonyl, lower alkanoylamide lower alkyl or aryl or by a group of the structure ##STR2## is which R.sub.5 and R.sub.6 have the meanings given hereinafter, R.sub.3 is a hydrogen or halogen atom or a carboxyl group, R.sub.4 and R'.sub.4, which can be the same or different, are hydrogen or halogen, carboxyl or lower alkoxy or lower alkyl radicals which are preferably in the m-position, R.sub.5 is hydrogen or a lower alkyl and R.sub.

Abstract: The present invention is concerned with the use of certain 3-aminopyrazolo-heterocyclic compounds for the colorimetric determination of hydrogen peroxide, hydrogen peroxide-forming systems, peroxidase, peroxidate-active substances and electron-rich aromatic compounds. The present invention is also concerned with corresponding processes of determination and with agents appropriate therefor. Furthermore, the present invention is concerned with new 3-aminopyrazolo-heterocyclic compounds.

Abstract: The present invention is concerned with the use of aniline derivatives of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl or aryl radical, R.sub.2 is a hydrogen atom or a lower alkyl radical which can be substituted by hydroxyl, amino, carboxyl, lower alkoxycarbonyl, lower alkanoylamido, aryl lower alkyl or aryl or by a group of the structure: ##STR2## in which R.sub.5 and R.sub.6 have the meanings given hereinafter, R.sub.3 is a hydrogen or halogen atom or a carboxyl group, R.sub.4 and R'.sub.4, which can be the same or different, are hydrogen or halogen atoms, carboxyl groups or lower alkoxy radicals or lower alkyl radicals which are preferably in the m-position and R.sub.1 and R.sub.4 or R.sub.2 and R.sub.4 or R.sub.4 and R'.sub.4, when the two substituents are ortho to one another, can together form a saturated or unsaturated hydrocarbon chain containing 2 to 6 carbon atoms which can be substituted by hydroxyl or oxo groups, R.sub.

Abstract: A tubular sleeve for a plant germination substrate consists of a a polymer mass and nonwoven, bonded fiber material treated with fungicides, in which cellulose fibers predominate. The rest of the synthetic fibers have a size of 1.3 to 17 dtex and give the fiber material a porosity of 1000 to 1600 l/s.m.sup.2 (air passage at 1.0 mbar). The fiber material is bonded by a binding agent and additionally contains fertilizer embedded in the polymer mass.

Abstract: The present invention is concerned with the use of aniline derivatives of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl or aryl radical, R.sub.2 is a hydrogen atom or a lower alkyl radical which can be substituted by hydroxyl, amino, carboxyl, lower alkoxycarbonyl, lower alkanoylamido, aryl lower alkyl or aryl or by a group of the structure: ##STR2## in which R.sub.5 and R.sub.6 have the meanings given hereinafter, R.sub.3 is a hydrogen or halogen atom or a carboxyl group, R.sub.4 and R'.sub.4, which can be the same or different, are hydrogen or halogen atoms, carboxyl groups or lower alkoxy radicals or lower alkyl radicals which are preferably in the m-position and R.sub.1 and R.sub.4 or R.sub.2 and R.sub.4 or R.sub.4 and R'.sub.4, when the two substituents are ortho to one another, can together form a saturated or unsaturated hydrocarbon chain containing 2 to 6 carbon atoms which can be substituted by hydroxyl or oxo groups, R.sub.

Abstract: A test support for support-bound tests for the determination of components of fluids, especially of human and animal body fluids. The test support is composed of a plurality of layers, and the joining of the layers is accomplished at least partially by sewing.

Abstract: Esters and agents including the esters, useful as substrates for esterolytic and/or proteolytic enzymes, said esters being compounds of the general formula: ##STR1## in which R".sub.1, R".sub.2, R".sub.3 and R".sub.4, which may be the same or different, are hydrogen atoms or lower alkyl, lower alkoxy, alkylamino or dialkylamino radicals or in which two adjacent substituents can also represent a fused benzene ring, A is a residue of an amino acid or of a peptide and B is a nitrogen protective group conventional in peptide chemistry or derived therefrom and the method of preparation and use.

Abstract: Esters and agents including the esters, useful as substrates for esterolytic and/or proteolytic enzymes, said esters being compounds of the general formula: ##STR1## in which R".sub.1, R".sub.2, R".sub.3 and R".sub.4, which may be the same or different, are hydrogen atoms or lower alkyl, lower alkoxy, alkylamino or dialkylamino radicals or in which two adjacent substituents can also represent a fused benzene ring, A is a residue of an amino acid or of a peptide and B is a nitrogen protective group conventional in peptide chemistry or derived therefrom; and the method of preparation and use.

Abstract: This invention relates to new amino acid and peptide esters of leuko-indoaniline compounds and to a process for their preparation. In additional aspect, the invention relates to compositions containing such compounds for the detection of proteolytic enzymes and to methods for detecting such enzymes.

Abstract: Azo dyestuff ester of the formulaA--N.dbd.N--B(OR).sub.nwhereinA is a five- or six-membered heterocyclic radical of up to 2 hetero ring atoms selected from nitrogen, sulfur and oxygen, and wherein the heterocyclic ring may be substituted with at least one member of the group selected from halogen, lower alkyl and lower alkoxy; orA is phenyl substituted by at least one member of the group selected from lower alkyl, lower alkoxy, nitro, sulphanato and acylamino;B is benzene, naphthalene or quinoline, optionally substituted with one or two radicals selected from sulphanato, lower alkoxy and lower alkoxypoly-alkyleneoxy;R is a carboxylic acid residue or an amino acid or peptide residue having a nitrogen protective group; andn is 1 or 2.This dyestuff is particularly useful as a chromogen in a diagnostic composition for detecting leukocytes in body fluids.

Abstract: Diagnostic agent for the detection of leukocytes in body fluids, comprising an absorbent carrier which is impregnated with a chromogen and a buffer substance, wherein the chromogen is a sulfonphthalein ester of the formula ##STR1## wherein R.sub.1 is a carboxylic acid residue optionally substituted by halogen or lower alkoxy; or is an amino acid or peptide residue having a nitrogen protective group;R.sub.2 is a halogen atom or a lower alkyl radical; andR.sub.3 and R.sub.4 are individually selected from hydrogen and halogen.Certain of the chromogen are provided as novel compounds.

Abstract: This invention relates to diagnositc agents and methods for the detection of leukocytes in body fluids. In additional aspect, the invention provides a process for the production of such diagnostic agents.

Abstract: Novel diagnostic composition for the detection of leukocytes in body fluids, comprising an absorbent carrier impregnated with a buffer substance and a chromgen, wherein the chromogen is an azo dyestuff ester of the formulaA--N.dbd.N--B(OR).sub.nwhereinA is a five- or six-membered heterocyclic radical of up to 2 hetero ring atoms selected from nitrogen, sulfur and oxygen, and wherein the heterocyclic ring may be substituted with at least one member of the group selected from halogen, lower alkyl and lower alkoxy; orA is phenyl substituted by at least one member of the group selected from lower alkyl, lower alkoxy, nitro, sulphanato and acylamino;B is benzene, naphthalene or quinolone, optionally substituted with one or two radicals selected from sulphanato, lower alkoxy and lower alkoxypoly-alkyleneoxy;R is a carboxylic acid residue or an amino acid or peptide residue having a nitrogen protective group; andn is 1 or 2.

Abstract: For the damping of high-frequency vibrations in liquids under high pressure in conduit systems there serves a diaphragm (2) loaded by a spring (3) and surrounded on all sides by the liquid of the conduit system. When the liquid is stationary the diaphragm (2) acts as barrier in a free flow cross-section of the conduit system. When the liquid is flowing the diaphragm (2) is situated in the state of suspense in which it is held by the energy of flow of the liquid against the counteracting force of the spring (3) loading the diaphragm (2). The diaphragm (2) is set in a housing (1) installed in the conduit system in such a way that the liquid on the upstream side of the diaphragm (2) flows through an annular space (6) radially around the diaphragm (2). The diaphragm (2) is especially suitable for installation in the housing (9) of a liquid filter.