Abstract: Compounds of the formula where R1, R2, R3, X and n are as defined in the description, are inhibitors of cysteine protease.

Abstract: A process for decolorizing polymers or copolymers which are obtained by cationic polymerization of tetrahydrofuran or of tetrahydrofuran and alkylene oxide, in the presence or absence of a telogen, comprises a) first, if desired, removing the low-boiling components by vacuum distillation or extraction and b) heating the remaining polymer or copolymer in the presence of at least one auxiliary selected from the group consisting of solid oxides and/or sheet silicates to from 20 to 150° C.

Abstract: Phosphabenzene compounds of the formulae I and II where R1 to R6 are identical or different and are, for example, hydrogen, are prepared by reacting corresponding pyrylium salts with PH3 in the presence or absence of a solvent or diluent. The pyrylium salts are combined with PH3 at above 0° C. and reacted at a temperature in the range from 0° C. to 200° C. and a pressure above 1 bar without addition of an acid catalyst or a base.

Abstract: Linear, thermoplastic, elastomeric copolymers comprise carbon monoxide and at least one olefinic C7- to C20-monomer and have an average molecular weight Mw greater than 15,000 g/mol and a Tg-value of less than −20° C., and comprise carbon monoxide, at least one olefinic C2- to C4-monomer and at least one olefinic C6- to C20-monomer and have an average molecular weight Mw greater than 40,000 g/mol and a Tg-value of less than 20° C.

Abstract: Transgenic animals carrying two transgenes, the first coding for a transactivator fusion protein comprising a tet repressor and a polypeptide which directly or indirectly activates in eucaryotic cells, and the second comprising a gene operably linked to a minimal promoter operably linked to at least one tet operator sequence, are disclosed. Isolated DNA molecules (e.g., targeting vectors) for integrating a polynucleotide sequence encoding a transactivator of the invention at a predetermined location within a second target DNA molecule by homologous recombination are also disclosed. Transgenic animals having the DNA molecules of the invention integrated at a predetermined location in a chromosome by homologous recombination are also encompassed by the invention. Methods to regulate the expression of a tet operator linked-gene of interest by administering tetracycline or a tetracycline analogue to an animal of the invention are also disclosed.

Abstract: Preparations of non-steroidal analgesics with antipyretic and antiinflammatory effect are obtainable by extrusion and shaping of a melt, comprising, besides one or more active ingredients, a mixture of a) 40-99.5% by weight of a homopolymer of N-vinylpyrrolidone with a Fikentscher K value of 30, b) 0.25-59.75% by weight of a water-soluble copolymer of N-vinylpyrrolidone, and c) 0.25-10% by weight of one or more physiologically acceptable salts of sodium or potassium, where the stated amounts are based on the total of components a), b) and c).

Abstract: At least one single-stage or multistage stirrer which produces not only a tangential flow component but also an axial flow field is used in a stirred-vessel reactor in connection with the preparation of polymers by liquid phase polymerization.

Abstract: In an industrial process for the heterogeneously catalyzed gas-phase oxidation of propane with molecular oxygen to give acrolein, the feed gas mixture having an initial undiluted molar ratio of the reactants propane:O2 of 7:3 is diluted with the reactant propane and, if desired, inert gases in such a way that the feed gas mixture comprises more than 70% by volume of propane and at least 5% by volume of O2.

Abstract: A process for distillative separation of part or all of an imine (III) from a mixture (II) comprising an amine (I) and said imine (III) comprises adding to the distillation mixture a compound (IV) which is inert toward said amine (I) under distillation conditions and whose boiling point is above the boiling point of said amine (I) under said distillation conditions to obtain, after the distillation, a mixture (VI) comprising essentially said compound (IV).

Abstract: A process for separating 2-aminomethylcyclopentylamine from a mixture consisting of hexamethylenediamine and 2-aminomethylcyclopentylamine by distilling the mixture at a pressure from 1 to 300 mbar.

Abstract: A process for the preparation of an O-alkylisourea of the formula I, where R1 is C1- to C20-alkyl, in the form of an acid addition salt, in which urea and an alkyl-transferring reagent, if required dissolved or suspended in a diluent, are reacted at 40-200° C. in a continuously operated reactor, is described. The diluent is preferably a recycled part-stream of the O-alkylisourea acid addition salt obtained.

Abstract: Fibers which contain potentially superconducting material are dry spun by the steps of preparing a suspension of potentially superconducting powder in a thickened solvent; preparing a solution of fiber-forming polymer; supplying the suspension and the solution to a spinning apparatus; in the spinning apparatus, arranging the solution and the suspension in a bicomponent arrangement; extruding the arranged solution and suspension from a spinneret as a bicomponent filament; and removing the solvent from the filament.

Abstract: A process for the reaction of an organic compound in the presence of a catalyst comprising, as active metal, ruthenium alone or together with at least one Group Ib, VIIb, or VIIIb metal in an amount of from 0.01 to 30 wt %, based on the total weight of the catalyst, applied to a support, wherein from 10 to 50% of the pore volume of the support comprises macropores having a pore diameter in the range of from 50 nm to 10,000 nm and from 50 to 90% of the pore volume of the support comprises mesopores having a pore diameter in the range of from 2 to 50 nm, the sum of said pore volumes being 100%, and said catalyst as such.

Abstract: Reactive dyes containing piperazine have formula (I) wherein: each of D1 and D2, independently, is a chromophoric group; each of R1, R2, R3 and R4, independently, is H or an optionally substituted alkyl group; each of X1 and X2, independently, is a labile atom or group; each of x and y, independently is 0 or 1 and at least one of x and y is 1; each of a and b independently, is 1 to 5; the or each R5, independently, is alkyl; and z is 0 to 4. For colouration of a substrate the dyes can be applied at a pH above 7 by, for example, exhaust dyeing, padding or printing.

Abstract: Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I) where R1 and R2 are independently H or C1 to C6 alkyl groups. The monomer grafted to the pre-formed graft base polymer is at least one of styrene or a C1 to C2 alkylstyrene, and optionally other monoethylenically unsaturated monomers. At least 5 mole % of the groups are cleaved from the grafted copolymer thus formed.

Abstract: Polymers of propene consist of from 50 to 99.9% by weight of an isotactic propene copolymer (A′) and from 0.1 to 50% by weight of a propene homopolymer or a propene copolymer (B′), where a) the propene copolymer (A′) consists of from 80 to 99.9 mol % of propene and from 0.1 to 20 mol % of ethene and/or a C4-C12-1-olefin, at least 80% of all propene diads are isotactic meso diads, the propene copolymer (A′) has a proportion (XS) of material soluble in xylene at 20° C. which satisfies the inequality (1) (XS)<542 400 exp (−0.1TM)+0.5  (1),  the tensile modulus of elasticity (E) of the propene copolymer (A′) in MPa, determined in accordance with ISO 527, obeys the inequality (2) (E)>1.9×10−11(TM)6.34+180 MPa  (2),  where in both inequalities (1) and (2) TM is the melting point in ° C.

Abstract: The invention provides novel mepiquat plant growth regulator compositions which have improved hygroscopicity and corrosion characteristics. The novel mepiquat plant growth regulator compositions of the invention can be readily prepared from technical mepiquat chlorid inter alia by electrochemical ion exchange processes or by quaternization of N-methylpiperidine with dimethylcarbonate as starting material.

Abstract: Compounds of the formula where R1, R2, R3 and R4 have the meaning stated in the description, and a process for preparing them are described. The compounds are suitable as starting material for synthesizing substances which are active against tumors.

Abstract: A process for the selective hydrolysis of acetals in the presence of phthalides comprises reacting a mixture (M) comprising a) a phthalide of the formula (I) where: R1,R2,R3 and R4: are independently hydrogen, C1-C4-alkyl or halogen, and b) an acetal or ketal of the formula (II) where: R5 and R6: are independently C1-C6-alkyl, C6-C10-aryl or together ethylene, and R7 and R8: are independently C1-C6-alkyl, or one radical is a hydrogen and the other is a phenyl radical where from 1 to 3 hydrogen atoms of the phenyl radical may be replaced by C1-C6-alkyl radicals or C1-C4-alkoxy radicals, or R7 and R8 are together C3-C6-alkanediyl, and a hydrogen atom may be replaced by a hydroxyl group, at from 10 to 200° C. in the presence of from 1 to 10 mol of water, based on the amount of acetal or ketal of the formula (II), to hydrolyze the acetal or ketal of the formula (II) to the corresponding aldehyde or ketone.

Abstract: A process for treating polyether polyols prepared in a conventional manner by base-catalyzed reaction of H-functional initiator substances with alkylene oxides comprises a combination of a thermal-reactive step at a pH of less than 7 and a temperature above 60° C. and a thermal-distillative step in a countercurrent column using a purifying agent. The polyether polyols prepared according to the invention are used for producing low-fogging and low-odor PUR foams.