Patents Assigned to Cassella Farbwerke Mainkur Aktiengesellschaft
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Patent number: 4216314Abstract: Physiologically-acceptable substituted 1,2-ethylenediamines and 1,3-propylenediamines, in free-base and in acid-addition-salt form, have highly pronounced and cardioselective .beta.-adrenolytic action, antiarrhythmic action and hypotensive action on administration to humans. The diamines are, more specifically, N-[3-aryloxy-2-hydroxypropyl]-N'-[1,3-(di-R.sup.3)-2,4-dioxypyrimid-6-yl] (ethylene or propylene)diamines wherein R.sup.3 is --H or lower alkyl and the aryl nucleus is either further unsubstituted, further monosubstituted or further disubstituted.The compounds are prepared, e.g, by reacting a corresponding N-[3-phenoxy-2-hydroxypropyl] (ethylene or propylene)diamine with a corresponding 6-chloropyrimidine-2,4-dione in a suitable medium containing an acid-binding agent.Type: GrantFiled: May 2, 1978Date of Patent: August 5, 1980Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Thomas Raabe, Otto Grawinger, Josef Scholtholt, Eckhard Schraven
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Patent number: 4116918Abstract: Melamine-formaldehyde resins of high transparency, good light fastness and low solubility are prepared from heavily N-oxymethylated melamines highly etherified with C.sub.1 to C.sub.2 alkyl, by vented kneading in liquid form at 120.degree.-160.degree. C followed by curing, all without local overheating and without the application of kneading pressure to solidified resin. A self-cleaning kneader is used and the resin that is produced is highly suited for carrying fluorescent dyes and the like.Type: GrantFiled: June 3, 1975Date of Patent: September 26, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Hans Gattner, Joachim Ribka
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Patent number: 4088764Abstract: The present invention relates to new pharmacologically valuable derivatives of 1-phenoxy-3-amino-propan-2-ol having the formula ##STR1## Wherein A denotes -CH.sub.2 -alkoxy, -O-alkoxyalkyl, -O-hydroxyalkyl, or ##STR2## R.sub.1 denotes hydrogen or methyl, Het denotes the radical of a pyrrole, pyrazole, imidazole, furane, thiophene, thiazole, pyridine, pyridazine, pyrimidine or pyrazine, which can additionally be substituted by one or more methyl groups, said radical is linked through a C atom, and R.sub.2 and R.sub.3 denote hydrogen, alkyl, alkenyl or cycloalkyl or conjointly with the N atom to which they are linked, and optionally with a further oxygen or sulfur hetero-atom, denote a saturated, 5-membered or 6-membered, monocyclic, heterocyclic structure, and alkyl radicals contain 1 to 4 carbon atoms, alkoxy radicals contain 1 to 4 carbon atoms, alkenyl radicals contain 3 or 4 carbon atoms and cycloalkyl radicals contain 5 to 7 carbon atoms; and aldehyde condensation products and acid addition salts thereof.Type: GrantFiled: December 10, 1974Date of Patent: May 9, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Thomas Raabe, Otto Grawinger, Josef Scholtholt, Rolf-Eberhard Nitz, Eckhard Schraven
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Patent number: 4087420Abstract: A water-insoluble azo dyestuff of the formula ##STR1## wherein D is an optionally substituted aromatic or heteroaromatic radical free of ionic groups; X is hydrogen or optionally substituted alkoxy; Y is hydrogen, optionally substituted alkyl, alkenyl, cycloalkyl, phenyl, hetaryl, alkoxy or phenoxy or --NHR.sup.4 wherein R.sup.4 is alkyl, alkenyl, cycloalkyl, aralkyl or aryl; R.sup.1 and R.sup.2 are hydrogen or alkyl and R.sup.3 is optionally substituted alkyl and its utility in the dyeing and printing of hydrophobic synthetic fibers and films such as polyesters.Type: GrantFiled: November 7, 1975Date of Patent: May 2, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Ernst Heinrich, Jachim Ribka, Joachim Valentin
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Patent number: 4081426Abstract: Aminoplast preparation is greatly speeded by condensing an aminotriazine such as melamine with formaldehyde and etherifying alkanol under superatmospheric pressure and at a temperature between about 80.degree. and about 130.degree. C.Type: GrantFiled: April 15, 1976Date of Patent: March 28, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Walter Michel, Hans Honel, Manfred Schon
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Patent number: 4080160Abstract: The formation of undesired difficulty removable film on dyeing equipment when dyeing with aqueous pigment dispersions containing cross-linking resin, is reduced by incorporating in the dispersions a mono-sulphated oleic acid amide.Type: GrantFiled: June 10, 1976Date of Patent: March 21, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Georg Cermak, Gerhard Pfeiffer
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Patent number: 4079040Abstract: Spreadability and/or strength of water-setting inorganic bonding compositions are improved by incorporating in them a water-soluble condensation product of formaldehyde with a diphenol ##STR1## The condensation can also take place in the presence of a water-soluble sulfite, a water-soluble sulfamate, a water-soluble pyrosulfite, a phenol sulfonic acid or a naphthalene sulfonic acid.Type: GrantFiled: April 30, 1975Date of Patent: March 14, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Joachim Ribka, Otto Trosken, Karlfried Keller, Erwin Herrmann, Wolfgang Bodenstedt, Peter Dorries
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Patent number: 4076662Abstract: N-formyl- or N-acetyl-aminomethyl ethers make very effective plasticizers for aminoplast resins and are particularly desirable for plasticizing such resins in resin-impregnated cellulosic products.Type: GrantFiled: December 15, 1976Date of Patent: February 28, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Karl Schnee, Steffen Piesch, Dieter Tichy
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Patent number: 4075409Abstract: The present invention relates to pharmacologically valuable new benzophenone derivatives having a pronounced sedative action on the central nervous system and some of which also possess muscle-relaxing and aggression-inhibiting properties. These new derivatives have the structural formula ##STR1## and the pharmaceutically-acceptable acid-addition salts thereof in which R.sub.1 and R.sub.2 are substituents selected from the group consisting of hydrogen, saturated and unsaturated alkyl groups having 1-4 carbon atoms; R.sub.3 is selected from the group consisting of --COOC.sub.3 H.sub.7, --COOC.sub.4 H.sub.9, --COOC.sub.6 H.sub.5, --C.sub.6 H.sub.5, ##STR2## whereby R.sub.4 is an aliphatic radical with 1 to 4 carbon atoms or phenyl and Y is an oxygen or sulfur atom; if m is O R.sub.3 is further selected from the group consisting of --COOCH.sub.3 and --COOC.sub.2 H.sub.Type: GrantFiled: October 21, 1974Date of Patent: February 21, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Heinz Gunter Greve, Klaus Resag
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Patent number: 4073616Abstract: Dyeing with sulfur or vat dyes is improved by using as oxidant for the oxidative after-treatment to bring out final dye shade and fastness, ##STR1## or a protonated product thereof R being hydrogen or --SO.sub.3 M, andM being hydrogen, ammonium or a compatible metal.Type: GrantFiled: December 2, 1976Date of Patent: February 14, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Christian Heid, Johannes Polster
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Patent number: 4069013Abstract: Pulverulent dyestuffs of all kinds are made highly resistant to dusting by dispersing into the powder a small amount of mineral oil that boils within the range of 140.degree. to 310.degree. C, and an emulsifier having a polyethoxy hydrophile. These additives can be premixed.Type: GrantFiled: May 21, 1976Date of Patent: January 17, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Helmut Hett, Kurt Walser
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Patent number: 4069012Abstract: Polyester fabrics are particularly effectively dyed with water-insoluble dyes having the formula: ##STR1##Type: GrantFiled: January 21, 1977Date of Patent: January 17, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Ernst Heinrich, Joachim Ribka
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Patent number: 4066768Abstract: The present invention relates to new pharmacologically valuable derivatives of 1-phenoxy-3-amino-propan-2-ol having the formula ##STR1## wherein X denotes ##STR2## A denotes --CH.sub.2 --alkoxy, --O--alkoxyalkyl, --O--hydroxyalkyl or ##STR3## AN AROMATIC OR QUASI-AROMATIC, 5-MEMBERED OR 6-MEMBERED, MONOCYCLIC RING WHICH IS LINKED THROUGH A C atom which has one or 2 nitrogen, oxygen and/or sulphur hetero-atoms and which can be substituted additionally by one or more methyl groups, and R.sub.2 and R.sub.Type: GrantFiled: March 24, 1976Date of Patent: January 3, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Thomas Raabe, Otto Grawinger, Josef Scholtholt, Rolf-Eberhard Nitz, Eckhard Schraven
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Patent number: 4058518Abstract: Dyestuffs, free of ionic groups, of the formula: ##STR1## wherein R is alkyl having 1 to 6 carbon atoms and the utility thereof in the dyeing and printing of synthetic materials deep yellow with excellent fastness properties.Type: GrantFiled: February 19, 1976Date of Patent: November 15, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Ernst Heinrich, Joachim Ribka
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Patent number: 4043984Abstract: Melamine resins are effectively elasticized with an elasticizer having the formula R-C.sub.6 H.sub.4 --COO--X--OH wherein C.sub.6 H.sub.4 denotes a phenylene group, R denotes a hydrogen atom or a methyl or ethyl group, and X denotes an unbranched or branched alkylene group with 2 to 6 carbon atoms whose carbon chain is either uninterrupted or interrupted by one oxygen atom. Such elasticized resins are particularly suitable for bonding together laminates.Type: GrantFiled: September 4, 1975Date of Patent: August 23, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Karl-Heinz Keil, Karlfried Keller, Joachim Ribka, Dieter Tichy
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Patent number: 4039493Abstract: Low-viscosity high-solids-content melamine-formaldehyde condensates having high reactivity, low content of free formaldehyde and good compatibility, are prepared by effecting condensation in an alcohol having up to 3 carbons, then concentrating the condensate and heating the concentrate in a higher alcohol having from 3 to 18 carbons and again concentrating. The final product cures on heating to a hard glossy film and can be added to other uncured resins to improve the hardness of their films.Type: GrantFiled: June 25, 1975Date of Patent: August 2, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Manfred Schon, Helmut Durr, Dieter Plath, Karlfried Keller, Walter Michel
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Patent number: 4035143Abstract: A water-insoluble azo dyestuff of the formula ##STR1## wherein D is an optionally substituted aromatic or heteroaromatic radical free of ionic groups; X is hydrogen or optionally substituted alkoxy; Y is hydrogen, optionally substituted alkyl, alkenyl, cycloalkyl, phenyl, hetaryl, alkoxy or phenoxy or --NHR.sup.4 wherein R.sup.4 is alkyl, alkenyl, cycloalkyl, aralkyl or aryl; R.sup.1 and R.sup.2 are hydrogen or alkyl and R.sup.3 is optionally substituted alkyl and its utility in the dyeing and printing of hydrophobic synthetic fibers and films such as polyesters.Type: GrantFiled: November 11, 1975Date of Patent: July 12, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Ernst Heinrich, Joachim Ribka, Joachim Valentin
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Patent number: 4033945Abstract: Very effective direct dyeing of cotton and other hydroxyl- or nitrogen-containing fibers is effected with water-soluble triasazo dyes having the formula:A-N=N-A.sup.1 -N=N-A.sup.2 -N=N-A.sup.3where A is a radical of a diazoconstituent and A.sup.3 is a radical of a coupling constituent ##STR1## and A.sup.1 or A.sup.2 or both can have their azo linkages reversed. These dyes are very fast particularly to washing and to perspiration, and are so effective with cotton that dye baths for such use are rapidly exhausted and the disposal of used bath is less of a problem.Type: GrantFiled: May 20, 1975Date of Patent: July 5, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Wolfgang Bauer, Erwin Krusche, Joachim Ribka
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Patent number: 4031064Abstract: Maleamic and fumaramic acids and certain of their derivatives make very good curing agents for converting aminoplast condensates to cured resins.Type: GrantFiled: April 18, 1975Date of Patent: June 21, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Karl Schnee, Dieter Tichy, Steffen Piesch
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Patent number: 4020071Abstract: The present invention relates to new pharmacologically valuable derivatives of 1-phenoxy-3-amino-propan-2-ol having the formula ##STR1## and the aldehyde condensation products and acid addition salts thereof wherein X is selected from the group consisting of ##STR2## wherein the phenyl ring I may have attached to it up to three similar or different substituents selected from the group consisting of alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, alkoxy, alkenyloxy, alkinyloxy, benzyloxy, phenyl, halogen and --NR.sub.1 R.sub.2, wherein R.sub.1 is selected from alkyl and acyl, and R.sub.2 is selected from hydrogen and alkyl; and to the production thereof by a method selected from (A) reacting 1-phenoxy-3-amino-propan-2-ol having the formula ##STR3## with a compound having the formula Y-X, wherein X has the above-defined meaning and Y is selected from halogen, --OH, --OK or --ONa; (B) reacting a compound of the formula ##STR4## with a compound of the formula H.sub.Type: GrantFiled: December 10, 1974Date of Patent: April 26, 1977Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Thomas Raabe, Otto Grawinger, Josef Scholtholt, Rolf-Eberhard Nitz, Eckhard Schraven