Abstract: New surface active compounds are disclosed having the Formula (I) ##STR1## in which X is an unsubstituted C.sub.1 to C.sub.6 alkylene group, a C.sub.1 to C.sub.6 alkylene group substituted by one or more hydroxy, oxo, methyl or carboxy groups, an unsubstituted p-phenylene group, or a p-phenylene group substituted by one or more halo or C.sub.1 to C.sub.4 alkyl groups;M is hydrogen or a salt-forming cation;n is a whole number from 6 to 60; andm is 0 or 1.The new surface active compounds are employed in aqueous acid galvanic zinc baths to improve the quality of the resulting zinc coating.
Abstract: Plastisols comprising a finely divided vinyl chloride polymer and the usual fillers, additives, and plasticizers, to which plastisols is added, as an adhesion promoter, an adduct formed between an epoxy compound and the condensation product formed between (1) a polyaminoamide, comprising polymerized fatty acids and an excess of a polyalkylene polyamine and (2) a carboxylic acid or an ester thereof, and methods for coating or adhering a substrate with such plastisols by applying said plastisols to the substrate and baking at temperatures of 90.degree. C. and up.
Type:
Grant
Filed:
January 28, 1985
Date of Patent:
June 16, 1987
Assignee:
Schering AG
Inventors:
Christian Burba, Ulrich Goeke, Norbert Esper
Abstract: Polyamide resins, suitable for use in relief printing, produced by condensation of a dimeric fatty acid, a mixture of monocarboxylic acids, and equivalent amounts of a diamine mixture of ethylene diamine and 1,6-diaminohexane.
Abstract: A method for coating artificial or natural stone slabs with a curable mixture comprising an epoxy resin and a curing agent which is the reaction product formed between an epoxy resin and an aminoamide, or is a phenolformaldehydeamine condensation product.
Abstract: A method for making organotin halides of the formula R.sub.3 SnX, R.sub.2 SnX.sub.2, or RSnX.sub.2 by the redistribution of appropriate mixtures of organotin compounds in the presence of stannous fluoride as a catalyst.
Abstract: A process and apparatus is provided whereby metal is deposited onto articles such as plastics, ceramics and the like for producing printed circuit boards, metal plated ceramics, shielded articles and other plated articles, as part of a generally or substantially continuous process. Prior to plating, also as part of a continuous process while the boards are being generally continuously and horizontally conveyed in horizontal orientation, they are prepared to accept copper on their non-metallic portions, by application of a chemical reducing solution thereto, preferably after previously having been provided with a chemical activation solution thereto. Then the boards are transferred to a vertical orientation and conveyed in vertical orientation through an electroless copper deposition bath, at a reduced rate of travel, during with a copper solution adheres to the thus treated non-metallic portions of the boards, and to the metallic portions of the boards as well.
Type:
Grant
Filed:
April 23, 1985
Date of Patent:
March 18, 1986
Assignee:
Schering AG
Inventors:
Daniel L. Goffredo, Walter J. Meyer, Horst Blaising
Abstract: Polyamides which are alcohol-soluble at room temperature, are useful in formulating printing inks, and which comprise dimerized fatty acids, at least one aliphatic unbranched monocarboxylic acid and at least one aliphatic branched monocarboxylic acid as the acid component, and ethylenediamine and hexamethylenediamine as the amine component, and printing inks formulated therefrom.
Abstract: The invention concerns a process for the aeration of industrial and commercial effluents in equalizing and reservoir basins before the effluent is cleaned in a conventional biological treatment plant. The aeration is conducted at a low redox potential, favorably attained by controlling the rate of aeration in dependence on the redox potential, as the set point and thereby keeping the redox potential at a constant value. Furthermore the addition of minimum substances, if necessary, can be conducted in dependence on the redox potential and the intensity of the aeration.
Abstract: What are disclosed are plastisols comprising a finely divided vinyl chloride polymer and the usual fillers, additives, and plasticizers, to which plastisols is added, as an adhesion promoter, the condensation product formed between (1) a polyaminoamide, comprising polymerized fatty acids and an excess of a polyalkylene polyamine and (2) a carboxylic acid or an ester thereof, and methods for coating or adhering a substrate with such plastisols by applying said plastisols to the substrate and baking at temperatures of 90.degree. C. and up.
Type:
Grant
Filed:
December 30, 1982
Date of Patent:
August 6, 1985
Assignee:
Schering AG.
Inventors:
Christian Burba, Ulrich Goeke, Norbert Esper
Abstract: Curable synthetic resin mixtures, useful as surface coatings, are prepared by the reaction of solid or liquid epoxy resins with curing agents in turn prepared by the reaction of epichlorohydrin with a cycloaliphatic diprimary diamine in a molor ratio between 1:>1 to 1:2.
Abstract: New 1,2,3-thiadiazole-5-yl-urea derivatives of the formula ##STR1## wherein R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl group which may be interrupted by one or more sulfur or oxygen atoms, R.sub.2 is a C.sub.1 -C.sub.4 alkyl which may be interrupted by one or more sulfur or oxygen atoms, a cycloaliphatic hydrocarbon group which may be substituted by one or more alkyl groups, an aromatic hydrocarbon group which may be substituted by one or more members of the group consisting of alkyl, halogen, alkyl thio, alkoxy, trifluoromethyl and nitro, or a heterocyclic hydrocarbon group which may be substituted containing at least one nitrogen atom, R.sub.3 is hydrogen, a C.sub.1 -C.sub.10 alkyl group which may be substituted, a C.sub.2 -C.sub.8 alkenyl, an aryl-C.sub.1 -C.sub.2 alkyl, a C.sub.3 -C.sub.8 -cycloaliphatic hydrocarbon group which may be substituted with one or more C.sub.1 -C.sub.
Type:
Grant
Filed:
September 27, 1982
Date of Patent:
January 1, 1985
Assignee:
Schering AG
Inventors:
Hans-Rudolf Kruger, Friedrich Arndt, Reinhard Rusch
Abstract: A reference branch circuit includes a voltage divider. Each of at least one regulated branch circuits includes the collector-emitter circuit of a regulating transistor and a measuring resistance. Each regulated branch circuit is associated with a comparator, which compares voltage across the measuring resistance of the corresponding regulated branch circuit to a reference voltage appearing at a reference tap of the voltage divider in the reference branch circuit. Current passing through each regulated branch circuit is regulated to be equal to the current flowing through the reference branch circuit.
Abstract: Microbubbles are formed in a liquid, e.g., blood in order to alter the transmission characteristics thereof to electromagnetic and sonic waves transmitted therethrough, by dissolving therein a solid particulate material, preferably as a suspension in a carrier liquid in which the particulate material is at least temporarily stable, the particles of which are substantially free of microbubbles and have a plurality of gas-filled voids communicating with the surface of the particles and providing nuclei for microbubble formation and the ratio of the mass of the particles to the volume of gas in the voids is sufficient to render the liquid in which the particulate material is dissolved supersaturated with respect to the gas in the voids in the area of the liquid surrounding the microbubbles when they are formed.
Abstract: What are disclosed are a method for the bonding of metallic materials and for producing coatings on metallic materials with a polyvinyl chloride plastisol which has improved adhesion at baking temperatures of 90.degree. C. and up and which contains, as an adhesion-improving additive, a condensation product of a polymerized fatty acid, a polycarboxylic acid having three or more COOH groups, an optional dicarboxylic acid, and an excess based on the carboxyl groups of the acid components, of a polyalkylene polyamine, and plastisols suitable for such a process.
Type:
Grant
Filed:
May 23, 1983
Date of Patent:
April 3, 1984
Assignee:
Schering AG
Inventors:
Christian Burba, Ulrich Goeke, Norbert Esper
Abstract: The method of hardening a glycidyl compound with a polyether urethane urea amino hardener is disclosed, said hardener being prepared by reacting (1) a blocked prepolymer prepared by reacting a phenolic compound with the reaction product of a polyether polyol with an excess of polyisocyanate, with (2) a polyfunctional amino compound.
Type:
Grant
Filed:
December 15, 1982
Date of Patent:
March 6, 1984
Assignee:
Schering AG
Inventors:
Christian Burba, Hermann-Josef Lucas, Bernd Neffgen
Abstract: What are disclosed are a method for making halogen-free organomagnesium alkoxides of the formulaR.sup.1.sub.a R.sup.2.sub.b Mg(OR.sup.3).sub.c (OR.sup.4).sub.c,wherein R.sup.1 and R.sup.2 are phenyl or alkyl, R.sup.3 and R.sup.4 are alkyl, and wherein (a+b)=(c+d)=1, by reacting(R.sup.1.sub.a R.sup.2.sub.b).sub.2 Mgwith Mg [(OR.sup.3).sub.c (OR.sup.4).sub.d ].sub.2,halogen-free organomagnesium alkoxides made by this method, and stable solutions of such organomagnesium alkoxides in an inert hydrocarbon solvent.
Abstract: Apparatus for the electrolytic deposition of metal onto metallic or appropriately pre-treated non-metallic objects and cleaning these objects of adhering surface treatment agents after further treatment as well as recovery of these treatment agents, with treatment station, drum installation, anodes, work container, supply bin, rotating arrangement, dosing and measuring arrangements, electrical attachments as well as connected conduit tubes, thereby characterized in that in the work container with overflow arrangement, two anodes are semicircularly arranged around the drum aggregate, whereby the work container is connected across an opening with fractionating arrangement, to a supply container with vacuum space for the surface treatment agent, which can be adjusted to a reduced pressure by means of a vacuum arrangement, and whereby the supply container is connected across a recirculation conduit to the work container, as well as a method using this apparatus. With current density up to 20.0 A/dm.sup.
Abstract: A composition for growth regulation of plants or for defoliating plants comprises in combination(a) at least one compound of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 3 carbon atoms and R.sub.2 is hydrogen or alkyl of 1 to 4 carbon atoms and R.sub.3 has the meaning defined in the specification and X is oxygen or sulfur and(b) at least one other plant growth regulating or defoliating agent which, in combination with the compound at (a) results in a synergistic effect in regard to the growth regulating and defoliant properties. The composition is particularly suited for the defoliation of cotton plants.
Abstract: A process for preparing a 3-oxo-7-hydroxy-bicyclo[3,3,0]octan-2-ylcarboxylic acid ester of the formula ##STR1## wherein R.sub.1 is alkyl of 1-6 carbon atoms or phenalkyl of 7-10 carbon atoms andR.sub.2 is hydrogen, alkyl or 1-6 carbon atoms, phenalkyl of 7-10 carbon atoms, tetrahydropyranyl, tetrahydrofuranyl, .alpha.-ethoxyethyl, tri-C.sub.1-4 -alkylsilyl, wherein the alkyl moieties can optionally be substituted by phenyl, or ##STR2## wherein R.sub.3 is alkyl of 1-6 carbon atoms or aryl of 6-12 carbon atoms, comprises oxidizing the corresponding 7-hydroxy-2-oxabicyclo [3,3,0]octan-3-ylideneacetic acid ester of the formula ##STR3## wherein R.sub.1 and R.sub.2 are as defined above, to form the corresponding ketone, reacting the latter with a base which opens the ether oxygen containing ring, and then reducing the resultant product to prepare the 3-oxo-7-hydroxy-bicyclo[3,3,0]octan-2-ylcarboxylic acid ester.
Type:
Grant
Filed:
June 5, 1981
Date of Patent:
November 16, 1982
Assignee:
Schering AG
Inventors:
Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen
Abstract: The invention concerns the preparation of new propane-1,2-dionedioximes, particularly pesticides having an insecticidal action containing these compounds as active substance, and to methods for the preparation of these compounds.