Abstract:
The production of 2-alkylpyridazonium compounds by reaction of pyridazones-(6) with alkylating agents, and the new 2alkylpyridazonium compounds. The compounds which can be prepared by the process according to the invention are pharmaceuticals and valuable starting materials for the production of dyes, pharmaceuticals and pesticides.
Abstract:
Thermoplastic molding compositions containing a styrene polymer and, as flame retardants, an organic chlorine compound, an organic bromine compound and an iron complex of a nitrosonaphthol dye.
Abstract:
Electrical insulating materials based on olefin polymers and containing agents for increasing their electric strength. The electrical insulating materials according to the invention contain anilines bearing special substituents as the agents for increasing electric strength.
Abstract:
WHERE R1, R2 and R3 are identical or different and each denotes an alkyl radical, herbicides containing these compounds, and a process for controlling the growth of unwanted plants with these compounds.
New and valuable substituted thetrachloro-benzenes having the formula
Abstract:
Production of 1,2,4-oxadiazolidine-3,5-diones by reaction of substituted hydroxylamines with N-chloroformyl-carbamic esters. The products are valuable starting materials for dyes.
Abstract:
Production of o-aminobenzonitriles by thermal decomposition of isatin Beta -oximes in the presence of basic compounds. The new products are starting materials for the production of dyes and pesticides.
Abstract:
PRODUCTION OF CARBOXYLIC ESTERS OF 3-FORMYLBUTEN-(3)OL-(1) BY REACTING BISMONOCARBOXYLIC ESTERS OF BUTEN-(2)DIOL-(1,4 WITH CARBON MONOXIDE AND HYDRGEN IN THE PRESENCE OF CARBONYL COMPLEXES OF RHODIUM AT TEMPERATURES OF 50* TO 110*C. AND PRESSURES OF 300 OT 1000 ATMOSPHERES. THE PRODUCTS ARE PERFUMES AND INTERMEDIATES FOR THE MANUFACTURE OF VITAMIN A.
Abstract:
TO PRODUCE MELAMINE, UREA AND/OR ITS THERMAL DECOMPOSITION PRODUCTS ARE REACTED AT 220* TO 400*C. IN CONTACT WITH AN ALUMINUM OXIDE HAVING A LARGE SURFACE AREA IN THE PRESENCE OF AMMONIA. THE ALUMINUM OXIDE USED HAS BEEN OBTAINED BY TREATMENT OF HYDROXIDES OF ALUMINUM (WHICH HAVE NOT BEEN PREVIOUSLY CALCINED) WITH UREA AND/OR ITS THERMAL DECOMPOSITION PRODUCTS AT TEMPERATURES OF FROM 150* TO 400*C. THE AVERAGE OF ALUMINUM OXIDE ACTIVATED IN THIS MANNER OVER ALUMINUM OXIDE OBTAINED BY CALCINING ALUMINUM HYDROXIDE CONSIST IN INCREASED UREA CONVERSION AND GREATER ATTRITION RESISTANCE.
Abstract:
PRODUCTION OF ETHYLENE HOMOPOLYMERS HAVING A SPECIFIC DENSITY BY POLYMERIZATION OF ETHYLENE UDER THE ACTION OF ORGANIC PEROXIDES AND OXYGEN AS FREE-RADICAL-GENERATING POLYMERIZATION INITIATORS AND OF POLYMERIZATION MODIFIERS AT ELEVATED TEMPERATURE AND SUPERATOMSPHERIC PRESSURE IN A TUBULAR REACTOR HAVING TWO SUCCESSIVE REACTION ZONES, A MIXTURE OF ETHYLENE, POLYMERIZATION INITIATOR AND POLYMERIZATION MODIFIER BEING INTRODUCED CONTINOUSLY AT THE BEGINNING OF EACH REACTION ZONE. OXYGEN AS POLYMERIZATION INITATOR AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY LOW CS VALUE ARE USED IN THE FIRST REACTION ZONE, AND AN ORGANIC PEROXIDE AHVING A SPECIFIC HALF VALUE TEMPERATURE AS POLYMERIZATION INITIATOR AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY LOW CS VALUE ARE EMPLOYED IN THE SECOND REACTION ZONE. THE ETHYLENE HOMOPOLYMERS OBTAINED HAVE A WIDE MOLECULAR WEIGHT DISTRIBUTION AND ARE PRACTICALLY DEVOID OF VERY HIGH MOLECULAR WEIGHT CONSTITUENTS.
Abstract:
A process for controlling undesired vegetation, in particular, a process for controlling undesired vegetation without damaging crop plants using substituted esters of N-phenylaminoacrylic acid.