Abstract: Method of transesterifying a fatty acid triglyceride with a C1-30 aliphatic alcohol, the method comprising step (A): (A) heating the fatty acid triglyceride with the C1-30 aliphatic alcohol in the presence of an acid; wherein the acid is selected from the group consisting of a sulfonic acid, a disulfonic acid and a hydroxycarboxylic acid, and a mixture thereof; the molar ratio of fatty acid triglyceride to aliphatic alcohol is less than 1:6; and the heating in step (A) is in a temperature range of from 20 to less than 100° C.

Abstract: The present invention relates to oxidation-stabilized biodiesel and methods for the production thereof.

Abstract: The invention describes citric acid esters as heating materials and fuels in stationary and mobile internal combustion engines and also in heating installations. Such propellants and fuels are characterized in particular by the fact that they burn completely without soot or with very little soot, therefore cause distinctly lower emissions of soot or fine dust than known fossil and regenerative fuels such as gasoline, diesel, kerosene, vegetable oils and biodiesel. Citric acid esters can be obtained completely from regenerative vegetable sources and are therefore CO2 neutral.

Abstract: A process is described for increasing the storage stability of biodiesel by metering a liquid stock solution which comprises 15 to 60% by weight of 2,6-di-tert-butylhydroxytoluene dissolved in biodiesel into the biodiesel to be stabilized up to a concentration of 0.005 to 2% by weight of 2,6-di-tert-butylhydroxytoluene, based on the overall solution of biodiesel.

Abstract: A process is described for increasing the storage stability of biodiesel by metering a liquid stock solution which comprises 15 to 60% by weight of 2,4-di-tert-butylhydroxytoluene dissolved in biodiesel into the biodiesel to be stabilized up to a concentration of 0.005 to 2% by weight of 2,4-di-tert-butylhydroxytoluene, based on the overall solution of biodiesel.

Abstract: Reacting weakly basic anion exchangers bearing tertiary amino groups with ethylene oxide under pH control and addition of acid leads to superior strongly basic anion exchangers.

Abstract: The present invention relates to a process for preparing selective ion exchangers based on crosslinked vinylaromatic polymers and containing iminoacetic acid units of the general formulas (I) and (II) wherein X represents hydrogen or an alkali metal ion, by reacting a weak-base anion exchanger bearing primary amino groups with monochloro-acetic acid and/or an alkali metal salt of monochloroacetic acid at a temperature of from 70 to 110° C. and a pH of from 7 to 11.

Abstract: The present invention relates to a process for preparing selective ion exchangers based on crosslinked vinylaromatic polymers and containing iminoacetic acid units of the general formulas (I) and (II) 1

Abstract: The present invention relates to a process for preparing strongly acidic macroporous or strongly acidic monodisperse-gel-type ion exchangers, particularly macroporous monodisperse, macroporous heterodisperse, or monodisperse-gel-type cation exchangers, by treating the respective basis polymer with sulfuric acid in stepwise cycles at graded concentrations. The invention further relates to the cation exchangers prepared by this process and to their uses.

Abstract: Polymers of improved surface quality are obtained by polymerization of microencapsulated monomer droplets suspended in an aqueous phase if the monomer and/or the aqueous phase contain a polymerization inhibitor.

Abstract: According to the process according to the invention for the preparation of anion exchange resins of the poly(meth)acrylamide type by aminolysis of bead polymers of cross-linked poly(meth)acrylic acid esters with excess polyamine, subsequent separation of the anion exchange resins from the liquid phase containing the unreacted polyamine, washing the anion exchangers free of amine with water and recovering the polyamines from the washing waters, the liquid phase containing the unreacted polyamine and the polyamine-containing washing waters are immediately mixed with the bead polymer of cross-linked poly(meth)acrylic acid ester to be subjected to aminolysis, the amount of fresh polyamine necessary for the establishment of the desired polyamine excess is added to the mixture, the mixture thus obtained is distillatively dewatered until its water content has fallen to a value of <7% by weight and the mixture remaining after this distillative dewatering is subjected to aminolysis in the customary manner.

Abstract: Aryl ethanol-hydroxylamines of the formula ##STR1## in which Ar represents aryl or heteroaryl, each of which can optionally be substituted, andR represents alkyl, aryl, aralkyl, heteroaryl, heteroaralkyl or cycloalkyl, each of which can optionally be substituted,or physiologically tolerated salts thereof, exhibit animal growth-promoting properties. Intermediates therefor of the formula ##STR2## with the exception of phenyl and p-bromophenyl, are also new.

Abstract: An alkenecarboxylic acid of the formula ##STR1## in which R.sup.1 denotes hydrogen, aryl, substituted aryl or a straight-chain or cyclic, saturated or unsaturated aliphatic hydrocarbon radical, which is optionally interrupted by O, S, N, N-alkyl, N-aryl or N-aralkyl, and which is optionally substituted by hydroxyl, alkoxy, alkyl, trifluoromethyl, halogen, phenyl, alkoxycarbonyl or dialkylamino, the two alkyl radicals together with the nitrogen atom optionally forming a 5 to 7-membered ring, which optionally contains a heteroatom from the group comprising O, S, NH or N-alkyl and these aforementioned alkyl and phenyl radicals in turn optionally being substituted by halogen, trifluoromethyl, alkyl, aryl, aralkyl, alkoxy, alkylmercapto or SO.sub.2 -alkyl,R.sup.2 represents the radical CXR.sup.8, R.sup.8 having the meaning indicated for R.sup.1 and being identical to or different from R.sup.1, andX representing oxygen, sulphur or the radical NR.sup.9 R.sup.10, R.sup.9 and R.sup.

Abstract: A carbonyl compound of the formula ##STR1## in which R.sup.1 denotes hydrogen, aryl, substituted aryl or a straight-chain or cyclic, saturated or unsaturated aliphatic hydrocarbon radical, which is optionally interrupted by O, S, N, N-alkyl, N-aryl or N-aralkyl, and which is optionally substituted by hydroxyl, alkoxy, alkyl, trifluoromethyl, halogen, phenyl, alkoxycarbonyl or dialkylamino, the two alkyl radicals together with the nitrogen atom optionally forming a 5 to 7-membered ring, which optionally contains a heteroatom from the group comprising O, S, NH or N-alkyl and these aforementioned alkyl and phenyl radicals in turn optionally being substituted by halogen, trifluoromethyl, alkyl, aryl, aralkyl, alkoxy, alkylmercapto or SO.sub.2 -alkyl,R.sup.2 represents the radical CXR.sup.8, R.sup.8 having the meaning indicated for R.sup.1 and being identical to or different from R.sup.1, and X representing oxygen, sulphur or the radical NR.sup.9 R.sup.10, R.sup.9 and R.sup.

Abstract: Insecticidally, arachnicidally and fungicidally active novel isoxazolidines of the formula ##STR1## in which n is 2 or 3,R.sup.1 is H or alkyl,R.sup.2 is optionally substituted alkyl, cycloalkyl, alkenyl, alkinyl, aryl or a heterocyclic radical which is optionally substituted, andA is a di- or trivalent aryl or heteroaryl radical which is optionally substituted by alkyl, cycloalkyl, aralkyl, alkoxy, alkylthio, aryloxy, arylthio, halogen, CN, OH, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, alkoxyalkyl, optionally halogen-substituted methylenedioxy or ethylenedioxy.Some of the intermediates are also new.

Abstract: Substituted isoxazolidines of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heteroaryl or radicals of the formula --COR.sup.4,R.sup.4 represents optionally substituted alkyl, aryl, alkoxy, alkylthio, aroxy, arylthio, amino, alkylamino, dialkylamino, arylamino, arylalkylamino, diarylamino or cycloalkylamino, or optionally substituted heterocyclic radicals which are bonded via nitrogen,R.sup.2 represents hydrogen or the radicals mentioned for R.sup.1, it being possible for R.sup.1 and R.sup.2 to be identical or different, andR.sup.3 represents optionally substituted alkyl, cycloalkyl, alkenyl, alkinyl or aryl, or saturated heterocyclic radicals, which are optionally substituted,and acid salts thereof, are pesticidally active and increase animals' utilization of feed. Intermediates therefor are also new.

Abstract: Imidazothiadiazolealkenecarboxamides of the formula ##STR1## in which R.sup.1 is hydrogen, aryl, substituted aryl or a cyclic or aliphatic hydrocarbon radical which is optionally interrupted by O, S, N, N-alkyl, N-aryl or N-aralkyl and which is optionally substituted,R.sup.8 having the meaning indicated for R.sup.1, andX representing oxygen, sulphur or the radical NR.sup.9 R.sup.10,the other radical having various definitions, and acid addition salts thereof, exhibit hypotensive activity.

Abstract: The invention relates to aminoalkyl-imidazothiadiazole-alkenecarboxylic acid amides, processes for their preparation, intermediates which are used in their preparation, medicaments containing said active compounds for use as antihypertensive agents, diuretics and uricosuric agents. Also included in the invention are methods for use of said compounds and compositions for the above indicated indications. The active compounds are identified herein by formula (I) and the novel intermediates used in preparing the compounds of Formula (I) are those described herein under Formula (II).

Abstract: Imidazothiadiazolealkenecarboxamides of the formula ##STR1## in which R.sup.1 is hydrogen, aryl, substituted aryl or a cyclic or aliphatic hydrocarbon radical which is optionally interrupted by O, S, N, N-alkyl, N-aryl or N-aralkyl and which is optionally substituted,R.sup.8 having the meaning indicated for R.sup.1, andX representing oxygen, sulphur or the radical NR.sup.9 R.sup.10,the other radicals having various definitions, and acid addition salts thereof, exhibit hypotensive activity.