Abstract: Permanently flame-resistant synthetic linear polyesters are obtained by irporating by condensation into the polyester composed of the usual dicarboxylic acid and diol units an alkylphosphine oxide of the formula ##SPC1##Wherein the radicals R to R.sub.4 represent organic radicals of which R.sub.2, R.sub.3 and Z may be substituted by 2 hydroxyl groups altogether, R.sub.2, R.sub.3 and R.sub.4 may also represent hydrogen and a is zero or a whole number of from 1 to 4. The flame-resistant polyesters are processed into shaped structures such as fibers, filaments, sheets, injection and compression molded articles characterized by good flameproofness and dyeing properties.
Type:
Grant
Filed:
August 23, 1973
Date of Patent:
July 12, 1977
Assignee:
Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius & Bruning
Inventors:
Ulrich Bollert, Hans-Jerg Kleiner, Franz Jakob
Abstract: By contacting hydrogen cyanide with oxygen or air and a catalyst solution containing water, low molecular weight aliphatic carboxylic acids, copper ions and nitrate ions oxalic acid diamide is formed in high yields.
Abstract: Modified trypsin-callicrein inhibitor wherein the five carboxyl groups present in the unmodified material are amidated by--(R)(R).sub.X W groups,Wherein R is prolyl or ##EQU1## X is an integer from 1 to 10, Y is hydrogen, alkyl, or substituted alkyl and W is --OH, --NH.sub.2, --NHC.sub.2 H.sub.5, --OCH.sub.3, or --OC.sub.2 H.sub.5. Method for making trypsin-callicrein inhibitor so modified by amidation.
Type:
Grant
Filed:
September 4, 1974
Date of Patent:
April 27, 1976
Assignee:
Hoechst Aktiengesellschaft
Inventors:
Wolfgang Konig, Oswald Zwisler, Gerhard Guthorlein
Abstract: A process for the continuous dyeing of synthetic fibrous materials from organic solvents, which comprises impregnating the said fibrous materials with organic dyebaths containing at least one dyestuff of the formula (1) ##SPC1##In which R represents a secondary or tertiary amino group of the formula (2) ##EQU1## in which R.sub.4, R.sub.5 each represents, straight chain or branched alkyl, hydroxyalkyl, lower alkyl --COO-- lower alkylene, and R.sub.4 additionally represents hydrogen lower alkyl --o-- lower alkylene, or R.sub.4 and R.sub.5 represent together with the nitrogen atom the heterocyclic ring ##EQU2## R.sub.1 and R.sub.1 ' each represents hydrogen, chlorine, bromine, lower alkyl, lower alkoxy, nitro or --SO.sub.2 -- lower alkyl, R.sub.2 and R.sub.
Type:
Grant
Filed:
October 23, 1973
Date of Patent:
April 20, 1976
Assignee:
Hoechst Aktiengesellschaft
Inventors:
Walter Birke, Rudolf Schickfluss, Franz Schon
Abstract: The present invention relates to polypeptides, to a process for isolating them from sea-anemones (Actinaria), preferably from Anemonia Sulcata, and their use as polyvalent isoinhibitors for proteases, peptidases and esterases such as trypsin, chymotrypsin, plasmin and Kallicrein.
Type:
Grant
Filed:
July 8, 1974
Date of Patent:
April 20, 1976
Assignee:
Behringwerke Aktiengesellschaft
Inventors:
Hans Fritz, Laszlo Beress, Rosemarie Beress, Brunhilde Forg-Brey
Abstract: Novel 0-(dialkylaminoalkyl)-1-alkyl-5-nitroimidazole-(2)-aldoximes are described as well as their manufacture and use for treating protozoal diseases. The novel compounds correspond to the general formula ##SPC1##In which R.sup.1 stand for a hydrogen atom, a methyl, ethyl or hydroxyethyl group, Z stands for a linear or branched alkylene chain of 2 to 3 carbon atoms, and R.sup.2 and R.sup.3 each stands for an identical or different lower alkyl radical having from 1 to 4 carbon atoms or the group --NR.sup.2 R.sup.3 can be part of a saturated heterocyclic ring which may contain further substituents preferably a methyl group or/and hetero atoms, such as, especially the pyrrolidine, piperidine, morpholine, thiamorpholine, tetrahydro-1,4-thiazine-1,1-dioxide and piperazine ring, and HX can be a non-toxic, physiologically acceptable acid.
Type:
Grant
Filed:
March 5, 1974
Date of Patent:
April 20, 1976
Assignee:
Hoechst Aktiengesellschaft
Inventors:
Erhardt Winkelmann, Ulrich Gebert, Wolfgang Raether
Abstract: Digoxigenine-3-[2', 3'-didesoxy-glycosides] of the formula ##SPC1##In which R.sup.1 is the digoxigenine radical and R.sup.2 is hydrogen, methyl or --CH.sub.2 OH, which are prepared by a reaction of a digoxigenine-12-monoacylate with an acylated 1,2-glycal, a catalytic hydrogenation of the 12-acylates obtained and a subsequent hydrolysis. The products have a cardiotonic, diuretic and especially venotonic activity.
Type:
Grant
Filed:
November 16, 1973
Date of Patent:
April 13, 1976
Assignee:
Hoechst Aktiengesellschaft
Inventors:
Ulrich Stache, Werner Fritsch, Werner Haede, Ernst Lindner
Abstract: A pigment compositon in powder or paste form, which comprises, as a preparation agent, a mixture consisting of (a) an alkyd resin having a high oil content, (b) a hydrocarbon resin, (c) a mineral oil boiling between 240.degree. and 320.degree.C, the ratio of component (a) to component (b) being from 1 : 1 to 1 : 1.5 and that of components (a)+(b) to component (c) varying from 4 : 1 to 0.7 : 1. This pigment composition is used in printing inks.
Type:
Grant
Filed:
October 29, 1974
Date of Patent:
April 13, 1976
Assignee:
Hoechst Aktiengesellschaft
Inventors:
Willy Herbst, Albert Rudolphy, Hans Peter Simson
Abstract: A process for the preparation of phosphonic acid dihalides of the formula ##EQU1## IN WHICH R is .alpha., .beta.-unsaturated alkyl, .alpha., .beta.-unsaturated alkyl, phenyl or benzyl and may be further substituted, which comprises reacting corresponding phosphonic or pyrophosphonic acids or their functional derivatives with acid halides of the formula (CO).sub.n Hal.sub.2 where n is 1 or 2.