Abstract: Dicarboximides of the general formula Ia and Ib ##STR1## where X is oxygen or sulfur, R.sup.1 is hydrogen, cycloalkyl, alkyl, hydroxyl, alkoxy, cyanoalkyl, alkenyl, alkynyl, phenyl, naphthyl or a 5-membered or 6-membered heterocyclic structure, where the stated radicals may be substituted, andR.sup.2 and R.sup.3 are each nitro, cyano, halogen, amino, mono- or dialkylamino, alkylcarbonylamino, unsubstituted or halogen-substituted alkoxy or alkylthio, alkylsulfonyl, haloalkylsulfonyl, alkenyl, alkynyl, phenyl, phenoxy or phenylthio or one of the radicals R.sup.1, with the proviso that specific compounds named in the description are excluded.Processes for the preparation of the compounds Ia and Ib and herbicides containing them.

Abstract: Synthetic resins are based on products which are obtainable by reactingA) epoxy-carrying resins based ona.sub.1) polyhydric phenols anda.sub.2) at least one compound selected from the group consisting of.alpha..sub.1) polyoxyalkylenepolyols,.alpha..sub.2) polyoxyalkylenepolyepoxides,.alpha..sub.3) polyoxyalkylenepolyamines and.alpha..sub.4) polyhydric aliphatic alcohols and,if desired,a.sub.3) phenolic compounds which react monofunctionally toward epoxides,B) monocarboxylic acids of 5 to 30 carbon atoms,C) amines which contain at least one primary and one tertiary amino group andD) formaldehyde-donating compounds.

Abstract: Methine transfer dyes have the formula ##STR1## where L is a bridge member which does not permit any conjugation of .pi.-electrons between Z and Y,X is cyano, C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -C.sub.6 -monoalkylcarbamoyl, wherein alkyl may in each case be interrupted by oxygen atoms, or is C.sub.5 -C.sub.7 -cycloalkoxycarbonyl, C.sub.5 -C.sub.7 -monocycloalkylcarbamoyl, phenoxycarbonyl or monophenylcarbamoyl, andY and Z are each independently of the other aminophenylene, which may be benzo-fused, or heterocyclyl.

Abstract: The present invention relates to a process for the preparation of closures for imperviously sealing packaging containers, by which a sealing composition is applied and stoved onto the inside of the closures, wherein the sealing composition containsA) 65 to 93% by weight of a liquid, blocked diisocyanateB) 2 to 15% by weight of a liquid diamine and/or polyamineC) 0 to 25% by weight of pigments and/or fillersD) 0 to 20% by weight of one or more reactive diluentsE) 0 to 8% by weight of auxiliaries and additives, where the sum of the proportions by weight of the components A to E is 100% by weight in each case.The present invention furthermore relates to the closures prepared by the process according to the invention and also to packaging containers which contain these closures.

Abstract: Polyurethane/polyisocyanurate foams with low K-factors and enhanced flammability properties as measured by the Butler Chimney test are produced through the use of a blowing agent composition comprising aliphatic hydrocarbon and a fully halogenated brominated halocarbon is a mole ratio of from 10:1 to 1:2.

Abstract: Novel coating compositions containing modified cellulose esters are disclosed. The modified cellulose esters contain acid functionality, permitting their dispersion in aqueous systems. The modified cellulose esters are particularly useful as rheology control agents in coatings which are applied as waterborne dispersions. The novel coating compositions are used to produce coated substrates with desirable appearance characteristics.

Abstract: A partially crosslinked polymer composition comprisinga) a polymer comprising from 25 to 95% by weight of polypropylene and from 5 to 75% by weight of a propylene copolymer with copolymerized C.sub.2 -C.sub.10 -alk-1-enes, the comonomer content being from 1 to 45% by weight, based on the total polymer,b) a random ethylene copolymer containing from 5 to 20% by weight of copolymerized C.sub.3 -C.sub.10 -alk-1-enes and having a density at room temperature of from 0.89 to 0.925 g/cm.sup.3, andc) an organosilane compound of the formula (I)A.sub.4-n SiR.sub.n (I)where A are identical or different acrylates or methacrylates or vinyl groups, R are identical or different C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -acetoxy groups, and n is 1, 2 or 3,can be obtained by reacting a polymer mixture of the polymer a) and the random ethylene copolymer b) with the organosilane compound c) in the presence of a free-radical initiator and in the presence of a condensation catalyst at from 180.degree. to 280.degree. C.

Abstract: Copolymers with non-linear optical properties, which contain or are composed of repeating units of the formula (I) ##STR1## where D is an electron donor,A is an electron acceptor,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be the same as or different from one another, and are each H, alkyl, cycloalkyl, or R.sup.3 and R.sup.4 are each CN, NO.sub.2 or CHO, or R.sup.1 forms with R.sup.2, or R.sub.3 forms with R.sup.4, a fused-on ring,X is CH and/or N,m is an integer from 2 to 11, andR is hydrogen or methyl,and repeating units of at least one of the formulae (II), (III) and (IV) ##STR2## are suitable for the production of optical components.

Abstract: Poly(urethane-urea) reaction injection molded compositions having improved processing and lower water absorption are prepared by reacting an isocyanate-terminated prepolymer prepared by reacting 4,4'-MDI or modified 4,4'-MDI and a polyoxypropylene glycol having a molecular weight of from 400 to 2500 with a polyether polyol and a hindered amine or glycol chain extender, in the presence of a urethane-reaction promoting catalyst, optionally including a hydroxyl terminated chain extender and internal mold release agent.

Abstract: A process of preparing symmetric C.sub.40 -carotenoids by reacting a C.sub.15 -triphenylphosphonium salt of the formula ##STR1## and a 2,5-bis(1,1-dialkoxy-2-propyl)-2,5-dihydrofuran to form a reaction product containing a diacetyl and a triphenylphosphonium salt, adding a strong base to the reaction product to convert the triphenylphosphonium salt to a carbenium ion, hydrolyzing the diacetyl to a dialdehyde, subjecting the dialdehyde and the carbenium ion to a Wittig reaction to prepare a Wittig reaction product, and converting the Wittig reaction product to the C.sub.40 -carotenoid by acid treatment.

Abstract: Cured aminoplast resins are recycled by a process in which said resins, which may contain fillers, are treated with an aqueous sulfite, hydrogen sulfite or disulfite solution and the resulting low molecular weight degradation products are used in chemical processes. The resulting low molecular weight degradation products of cured aminoplast resins are used for coating moldings, for tanning leather and skins and for the production of moldings which contain cured aminoplast resins or consist thereof.

Abstract: Blue dye mixtures useful for dyeing or printing polyester fabrics contain from 30 to 95% by weight, based on the total weight of the dyes, of one or more dyes based on 1,4-diaminoanthraquinone-2,3-dicarboximides and also from 5 to 70% by weight based on the total weight of the dyes, of one or more thiopheneazo dyes having a coupling component of the aniline series.

Abstract: O-substituted hydroxylammonium salts are prepared by hydrolysis of acetone oxime ethers with acid in the presence of an additive, removing acetone and water by distillation with the aid of the additive.

Abstract: Disclosed is a process for producing polyethylene terephthalate fibers with reduced flammability which comprises the following steps:(a) condensating terephthalic acid and ethylene glycol in a mole ratio of from 1:1.1-1.5 at a temperature of from 180.degree.to 240.degree. C. in the presence of a catalyst;(b) adding a polyalkylene glycol phosphate ester;(c) polycondensating at a temperature of from 265.degree.-280.degree. C. under a pressure decreasing from 760 torr to less than 2 torr to form the polyethylene terepthalate; and(d) melt spinning fibers.

Abstract: A process for the continuous production of cyclohexene from a cyclohexyl ester of a carboxylic acid having 1 or 2 carbon atoms, which comprises the following steps:a) heating a cyclohexyl ester of a carboxylic acid having 1 or 2 carbon atoms in the presence of an acid catalyst with the formation of cyclohexene and a carboxylic acid having 1 or 2 carbon atoms;b) removing, by distillation, cyclohexene and carboxylic acid having 1 or 2 carbon atoms from the reaction mixture from stage a) at the same rate as they are formed;c) adding a cyclohexyl ester of a carboxylic acid having 1 or 2 carbon atoms to stage a) at the rate cyclohexene and carboxylic acid are distilled off; andd) separating the mixture comprising cyclohexene and carboxylic acid having 1 or 2 carbon atoms coming from stage b).

Abstract: A process for preparing halogenated indigo by reacting indigo with bromine and/or chlorine in the presence or absence of iodine as catalyst comprises using thionyl chloride as reaction medium.

Abstract: Fabric useful for processing into a fiber reinforced composite is made from multicomponent yarn having a thermoplastic matrix component of a first melting point if crystalline or a first softening point if not crystalline and a drawable, oriented, fibrous thermoplastic reinforcing component of a second melting point if crystalline or a second softening point if not crystalline, wherein said first melting or softening point is at least 5.degree. C. below said second melting or softening point.

Abstract: 4-Acetoxystyrene of the formula I ##STR1## is prepared by a process in which a 1-(4-acetoxyphenyl)ethyl carboxylate of the formula II ##STR2## where R is C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, aryl or C.sub.7 -C.sub.10 -aralkyl, is converted in the presence of an acidic catalyst and of a polymerization inhibitor in an inert heat transfer medium at from 160.degree. to 250.degree. C. and from 0.1 to 300 mbar.

Abstract: Negative relief copies are produced by imagewise exposure of a recording plate consisting of a substrate and a photosensitive layer which is applied thereon and contains, as photosensitive compounds, esters of 1,2-naphthoquinone-2-diazide-4- and/or -5-sulfonic acid or -carboxylic acid, heating of the exposed plate, uniform exposure of the plate and development of the relief copy by dissolving the alkali-soluble components from the recording layer by means of an aqueous alkaline developer, by a process in which the photosensitive layer of the recording plate contains a reaction product ofa) from 50 to 99% by weight of an oligomeric or polymeric condensate ofa.sub.1) from 0.5 to 1 mol of an alkyl- and/or alkoxy-substituted monohydric, dihydric or trihydric hydroxybenzene,a.sub.2) from 0 to 0.5 mol of phenol anda.sub.3) from 0.5 to 1.5 mol of a C.sub.1 -C.sub.12 -carbonyl compound,the sum of the amounts of a.sub.1) and a.sub.

Abstract: A process for preparing neopentyl glycol hydroxypivalate by base-catalyzed disproportionation of hydroxypivalaldehyde, wherein the reaction is carried out in the presence of a readily water-soluble alkaline earth metal salt and of an alkali metal hydroxide.