Abstract: The invention relates to the use of one or more N-substituted 2-pyrrolidone-4-carbonic acid esters of formula (1), where R1 and R2 independently represent linear, branched, or cyclic C1-C6 alkyl, as (a) solvent(s). Said compounds can be used as solvents in industrial applications, e.g. for the production of varnishes and paints, in chemical syntheses, for cleaning or degreasing, in petrochemical processes, in the electronics and photovoltaic industries, or in pesticide preparations, for example.

Abstract: Disclosed are pesticide preparations containing a) one or more pesticides and b) one or more N-substituted 2-pyrrolidone-4-carbonic acid esters of formula (1), where R1 and R2 independently represent linear, branched, or cyclic C1-C6 alkyl.

Abstract: The invention relates to pesticide preparations that contain one or more pesticides and one or more N-substituted 2-pyrrolidone-4-carboxylic acid derivatives and to the use of said pesticide preparations for controlling and/or combating weeds, fungal diseases, or insect infestation. The N-substituted 2-pyrrolidone-4-carboxylic acid derivatives act as adjuvants, emulsifiers, dispersants, and/or wetting agents in the pesticide preparations.

Abstract: The invention relates to a continuous method for producing hydroxycarboxylic acid amides, according to which at least one hydroxycarboxylic acid of formula (I) HO—R3—COOH??(I) wherein R3 is an optionally substituted aliphatic hydrocarbon group comprising between 1 and 100 carbon atoms, is reacted with at least one amine of formula (II) HNR1R2??(II) wherein R1 and R2 are independently hydrogen or a carbon group comprising between 1 and 100 C atoms, to form an ammonium salt, and said ammonium salt is then reacted to form a hydroxycarboxylic acid amide, under microwave irradiation in a reaction pipe, the longitudinal axis of the pipe being oriented in the direction of propagation of the microwaves of a monomode microwave applicator.

Abstract: Ethanolamine glyceryl ether condensation products of the formula (I) are described, in which R1, R2 and R3 may each independently be the same or different and are each hydrogen, a linear or branched, saturated alkyl chain having from 1 to 20 carbon atoms, a linear or branched unsaturated alkenyl group having from 2 to 20 carbon atoms, —CH2—CH2—OH or a radical of the formula (II), with the proviso that at least one of the R1, R2 and R3 radicals is a radical of the formula (II) and at least one further radical of the R1, R2 and R3 radicals is selected from —CH2—CH2—OH and radicals of the formula (II), wherein (O-A), (O-D), R4, R5, a, b, d, and e are as defined in the specification.

Abstract: The invention relates to aromatically substituted glycerine ethers of formula (I), wherein at least one of the radicals R1, R2, or R3 is or contains an aromatic group. Said compounds can be used, preferably, as surface-active agents.

Abstract: Agrochemical compositions comprising a) one or more substances selected from pesticides and phytohormones and b) one or more substances selected from alkyl phosphoric esters and alkylaryl phosphoric esters, wherein the compounds of component b) comprise one or more branched alkyl groups, are described.

Abstract: The invention relates in particular to compositions comprising one or more pesticides and one or more alkoxylated amines. The compositions have an improved effectiveness and are simultaneously economical, simple to handle and well tolerated by man and the environment.

Abstract: Process for the preparation of acylglutamate solutions by reaction of a glutamic acid salt with an acid chloride in water and in the presence of an anionic or zwitterionic surfactant.

Abstract: A precursor for alkoxylation catalysts is prepared by reacting a chelating anionic or nonionic phase transfer catalyst with an alkaline earth metal compound in the presence of a compound which can be alkoxylated. Suitable phase transfer catalysts are, in particular, ethoxylated fatty alcohols, ether carboxylic acids, ether sulfonic acids or ether phosphonic acids. Addition of sulfuric acid to such a precursor produces an alkaline earth metal sulfato complex which is the actual catalyst for the alkoxylation.

Abstract: The invention relates to meso-lactide having a melting point of 52.8.degree. C. and to processes for its preparation.

Abstract: A process for producing trimethylene carbonate wherein 1,3-propanediol is reacted with diethylcarbonate in the presence of zinc powder, zinc oxide, tin powder, tin halide or an organo-tin compound, at an elevated temperature.

Abstract: An improved process for the preparation of D,L-Lactide which can be used directly in polymerization reactions.

Abstract: The invention relates to new copolymers of lactic acid and tartaric acid, the preparation and use thereof.

Abstract: The instant invention relates to a heat emitting unit in form of a heating or cooling body having a main body (2) and a number of parallel, flat ribs (3, 4) attached to at least one side of the main body and projecting from said main body. According to the invention a number of parallel channels (16, 17) with an undercut profile and separated by intermediary ridges (18) are provided for the attachment of the ribs (3, 4). The ribs (3, 4) are inserted from the side into the channels by matching foot profiles and are pressed into place through deformation of the intermediary ridges. This results in advantages in manufacture, in heat emission and in the sizing as well as in the applicability of the heat emitting unit.

Abstract: An improved process for the preparation of D,L-Lactide which can be used directly in polymerization reactions.

Abstract: The invention relates to a meso-lactide having a melting point of 52.8.degree. C., processes for its preparation, and its use in the preparation of resorbable polymers and copolymers.

Abstract: The invention relates to an improved process for precipitating cytosine from an aqueous solution of an alkali or alkaline earth metal salt of cytosine using sulfuric acid.

Abstract: A stacking and surface protection device is disclosed on a protective housing made of a synthetic material. The stacking and surface protection device has at least two raised supports in the form of supporting feet (14, 15) molded on each of the outer surfaces (10, 11, 12, 13). These supporting feet (14, 15) have contact surfaces made so that two supporting feet (14, 15) on an outer surface are male and female elements with respect to their contact surfaces and interlock when the outer surface is rotated by 180.degree. around a vertical as well as a horizontal axis. As a result, protective housings stacked on top of each other, i.e. outer surfaces lying on top of each other are blocked in two degrees of freedom of the stacking plane. A stacking and surface protection device having stacking support surfaces of identical configuration by means of which stable stacks can be obtained while the smooth synthetic material surfaces are effectively protected against scratching and soiling is thereby created.

Abstract: The instant invention relates to a protective housing made of a synthetic material to hold measuring, control, monitoring and similar devices in repeated use under tightly sealed conditions, consisting of two housing elements (19, 20) in the form of a roof or of a three-sided prism, each with an all-around juxtaposition rim (6). According to the invention, the central roof surfaces (2, 3) in each of two band-like wall segments (12, 13) are bent towards the juxtaposition rim (6) and stand, at a slightly conical pitch, nearly perpendicularly on the juxtaposition surface constituted by the juxtaposition rim (6). Wall reinforcement elements (7, 9) or blocks of material, beginning at the juxtaposition rim 6 are molded on to the band-like wall segments (12, 13) and at the same all-around height also on the lateral surfaces (4, 5) to serve as stacking support points and to receive hardware. The lateral surfaces (4, 5) are inclined towards each other at a slightly conical pitch.