Abstract:
The present invention relates to a process for stabilizing organic polymeric materials comprising incorporating therein a benzofuran (2) one or indolin (2) one compound as stabilizer. Such stabilized polymeric materials are stabilized against degradation during the polymer processing.
Abstract:
Novel pyrrole derivatives of formula I wherein X is oxygen or sulfur; R1 is C1–C4alkyl unsubstituted or substituted, with the exception of CF3; C3–C6cycloalkyl unsubstituted or substituted; or halogen; R2 is hydrogen, C1–C4alkyl unsubstituted or substituted, C1–C4alkoxy unsubstituted or substituted, cyano or halogen; R3 is C1–C4alkyl unsubstituted or substituted; and A is orthosubstituted aryl; orthosubstituted heteroaryl; bicycloaryl unsubstituted or substituted; or bicycloheteroaryl unsubstituted or substituted. The novel compounds have plant-protective properties and are suitable for protecting plants against infestations by phytopathogenic microorganisms.
Abstract:
In a process for controlling a closing device in a motor vehicle driven by an electric motor, in particular for controlling a motor vehicle sunroof, to protect a body part from being crushed during a closing motion, a closing resistance variable is detected. The closing resistance variable is characteristic of a force counteracting the closing motion, and is used to determine whether a crush situation exists. For this purpose, an additional auxiliary variable indicative of wind load forces at a certain speed is used. If a crush situation exists, a protective measure is initiated.
Abstract:
A process for determining the combustion pressure of an internal combustion engine is proposed. Conventional processes of this type have the disadvantage that the determination methods are very costly. Furthermore, stringent requirements are made of the sensors to be used. By comparison, the process proposed here is distinguished in that the combustion pressure is calculated from the combustion chamber pressure (p(.alpha.)) determined with simple sensors, by determining the compression pressure (p.sub.k (.alpha.)). These values for the compression pressure are subtracted from the combustion chamber pressure in order to calculate the combustion pressure p*(.alpha.)). Preferably, the course of the compression pressure is obtained by measuring the combustion chamber pressure values during the compression until top dead center in the working phase and storing them in a memory. The compression values occurring after top dead center are obtained by reflection at an axis extending through top dead center, resulting in a symmetrical curve course for the compression pressure. In this way, the combustion pressure can be calculated particularly simply.
Abstract:
The invention provides compounds of formula I ##STR1## wherein R is C.sub.1-4 alkoxy-C.sub.2-4 alkyl of which the C.sub.1-4 alkoxy group is separated by at least 2 C-atoms from the N-atom to which R is bound,each of R.sub.2 and R.sub.4 independently is CH.sub.3 or C.sub.2 H.sub.5 andR.sub.5 is H or CH.sub.3,the preparation of such compounds and the use of such compounds for the preparation of N-(thien-3-yl)-chloroacetamides.
Abstract:
There is disclosed a process for the direct reduction of iron-oxide-containing materials by a gasification gas produced in a gasifier by reacting carbon with oxygen and, if desired, with steam, upon the addition of sulfur acceptors in a fluidized bed. The gasification gas is supplied to a direct reduction shaft furnace after separation of solid particles carried therewith. At least part of the top gas withdrawn from the direct reduction shaft furnace is compressed after dust scrubbing and is recycled to the gasifier. The sulfur acceptors are supplied as fine particles separated from the coal in cocurrent with, and/or counterflow to, the fluidized-bed forming gases. The top gas from the reduction shaft furnace, which has a concentration of from 15 to 30% CO.sub.2 and a temperature of from 80.degree. to 800.degree. C., is recycled laterally through the wall of the gasifier into the region of the fluidized bed, which is maintained at a temperature of at least 1,150.degree. C. The slag, which is in the molten state with the temperature prevailing in the gasifier, containing ashes and sulfur compounds and collecting under the formation of a bath, is removed via a tap in the vicinity of the bottom of the gasifier. The solid particles separated from the gasification gas are mixed with dust coal having a grain size of up to 3 mm and are recycled into the bottom region of the gasifier above the surface of the slag bath.
Abstract:
The present invention relates to a process for the preparation of compounds of formula (I) wherein the substituents are as defined in claim 1, by a) reaction of a compound of formula (II) to form a compound of formula (III) b) reaction of that compound in the presence of a base to form a compound of formula (IV) c) conversion of that compound in the presence of a reducing agent into a compound of formula (I).
Abstract:
The present invention relates to a process for the preparation of compounds of formula (I) wherein the substituents are as defined in claim 1, by a) reaction of a compound of formula (II) to form a compound of formula (III) b) reaction of that compound in the presence of a base to form a compound of formula (IV) c) conversion of that compound in the presence of a reducing agent into a compound of formula (I).
Abstract:
The present invention relates to a process for the preparation of bicyclic 1,3-diketone salts of formula I wherein R1, R2, R3 and R4 are each independently of the others hydrogen or C1-C4alkyl; A and E are each independently of the other C1-C2alkylene, which may be substituted once or up to four times by a C1-C4alkyl group, and M+is an alkali metal ion, alkaline earth metal ion or ammonium ion, by oxidation of a compound of formula II to a compound of formula III and subsequent conversion to a compound of formula I either in the presence of a base and a catalytic amount of a cyanide or in the presence of an alkali metal alcoholate or alkaline earth metal alcoholate, and to novel bicyclic enol lactone intermediates of formula III for use in that process.
Abstract:
Novel pyrrole derivatives of formula (I) wherein X is oxygen or sulfur; R1 is C1-C4alkyl unsubstituted or substituted, with the exception of CF3; C3-C6cycloalkyl unsubstituted or substituted; or halogen; R2 is hydrogen, C1-C4alkyl unsubstituted or substituted, C1-C4alkoxy unsubstituted or substituted, cyano or halogen; R3 is C1-C4alkyl unsubstituted or substituted; and A is orthosubstituted aryl; orthosubstituted heteroaryl; bicycloaryl unsubstituted or substituted; or bicycloheteroaryl unsubstituted or substituted. The novel compounds have plant-protective properties and are suitable for protecting plants against infestations by phytopathogenic microorganisms.