Abstract: Quinoline derivatives fused to a five-membered heterocyclic ring and of the formula ##STR1## where R.sup.1 is hydrogen, halogen, carboxyl or substituted or unsubstituted alkyl,Y is nitrogen or C--R.sup.2, whereR.sup.2 is hydrogen, halogen, hydroxyl, alkoxy, alkylthio, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted benzyl, phenethyl, phenyl or naphthyl, or a substituted or unsubstituted 5- or 6-membered heterocyclic ring with one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen,X is oxygen or N--R.sup.3, R.sup.3 being hydrogen, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl or subsituted or unsubstituted benzyl,processes for their manufacture and their use for combating unwanted plant growth.

Abstract: Radomes having increased transparency and reduced reflectivity and refractivity to radar waves may be prepared or repaired utilizing heat-curable resin-containing structural materials in which the heat-curable resin contains greater than about 70 weight percent of cyanate functional monomers. The structural materials take the form of matrix resin impregnated prepegs and composites, film adhesives, paste adhesives, syntactic foams, and expandable foams, and may be used to prepare numerous useful structural features including honeycomb materials and leading edge radomes containing syntactic foams.

Abstract: Cyclopentanones of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each an organic radical or R.sup.1 or R.sup.2 may be hydrogen and R.sup.3 is hydrogen or formyl, are prepared by a process in which a 2-formyl-3,4-dihydropyran of the general formula II ##STR2## where R.sup.1 and R.sup.2 have the abovementioned meanings, a) where R.sup.3 is formyl, is converted in the presence of an acidic heterogeneous catalyst at from 50.degree. to 500.degree. C., andb) where R.sup.3 is hydrogen,b.sub.1) is reacted with water or an alcohol in the presence of an acidic heterogeneous catalyst at from 100.degree. to 500.degree. C. in the gas phase orb.sub.2) a compound II or an acrolein of the general formula III ##STR3## is reacted with water or with water in the presence of an acid or with an alcohol in the presence of an acid at from 150.degree. to 400.degree. C. in the liquid phase. Novel 2-formylcyclopentanones are obtained.

Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.

Abstract: Catalysts whose active material contains, in addition to from 20 to 85% by weight, calculated as ZrO.sub.2, of oxygen-containing zirconium compounds, from 1 to 30% by weight, calculated as CuO, of oxygen-containing compounds of copper and from 1 to 40% by weight each, calculated as CoO or NiO, respectively, of oxygen-containing compounds of cobalt and of nickel are used for the amination of alcohols under hydrogenating conditions.

Abstract: Acyl chlorides of the general formula ##STR1## where R is C.sub.8 -C.sub.30 -alkyl, C.sub.8 -C.sub.30 -alkenyl or C.sub.8 -C.sub.30 -alkynyl, are prepared from a carboxylic acid of the general formula II ##STR2## where R has the abovementioned meanings, and phosgene, COCl.sub.2 (III), in the presence of a catalyst adduct of phosgene and N,N-dialkylformamide of the general formula IV ##STR3## where R.sup.1 and R.sup.2 independently of one another are each C.sub.1 -C.sub.3 -alkyl, preferably a 1:1 adduct in excess N,N-dialkylformamide, the reaction product I being obtained by phase separation, by a process in which II and III are used in essentially equimolar amounts and the phase containing the catalyst adduct is reused.

Abstract: Polymers having terminal halogen atoms and consisting of cationically polymerizable, olefinically unsaturated monomers are obtainable by polymerization using an initiator system comprising a halogen-containing Lewis acid and a 3-membered to 8-membered cyclic ether.

Abstract: An optical recording medium contains novel azulenemethine dyes of the formula ##STR1## where R is unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, X.sup..crclbar. is an anion, A.sup..sym. is heterocyclic radical, of the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, Y, Z and W are as defined, with the proviso that, when A.sup..sym. is a radical of the formula II f, II g, II i or II k, m is 2, A is 1, 2 or 3 and M is 1 or 2.

Abstract: Methyl .alpha.-arylacrylates substituted by a heterocyclic radical and having the general formula ##STR1## where R is alkyl, alkenyl, haloalkyl, cycloalkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, halogen or aryl, the aromatic ring being unsubstituted or substituted, Het is a five-membered heteroaromatic ring which is unsubstituted or substituted and has from one to three heteroatoms, and A is ethenylene, ethylene, methyleneoxy or methylenethio, and fungicides and pesticides containing these compounds.

Abstract: A process for the preparation of a 2,2-disubstituted pentane-1,5-diamine of the formula I ##STR1## where R.sup.1 and R.sup.2, independently of one another, are C.sub.1 - to C.sub.10 -alkyl or C.sub.2 - to C.sub.10 -alkenyl or together are a C.sub.4 - to C.sub.7 -alkylene chain which is unsubstituted or monosubstituted to pentasubstituted by C.sub.1 - to C.sub.4 -alkyl, from a 2,2-disubstituted 4-cyanobutanal of the formula II ##STR2## where R.sup.1 and R.sup.2 are as defined above, comprises, in two spatially separate reaction spaces,a) reacting the 4-cyanobutanal of the formula II, in a first reaction space, with excess ammonia on an acidic heterogeneous catalyst at from 20.degree. to 150.degree. C.

Abstract: There is disclosed a metallic and nonmettalic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before applying the base coat coating. A water reducible acrylic resin with nonionic and acid functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a drier application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.

Abstract: Blends of styrene-butadiene rubber and PVC latices in a dry weight ratio of 45:10 to 55:70 are useful to form heat sealable films. The mixture does not contain plasticizers and thus reduces environmental concerns during processing. The resulting film have good clarity and flexibility and may be used to seal textiles, non-wovens and boards.

Abstract: Substituted oxime ethers of the general formula ##STR1## where R.sup.1 is alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, alkoxyalkyl, cycloalkyl, cycloalkylalkyl, cyanoalkyl, alkoxycarbonylalkyl, arylalkyl, heteroarylalkyl, arylalkenyl or aryloxyalkyl, the aromatic or heteroaromatic ring being substituted or unsubstituted, R.sup.2 and R.sup.3 are hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, halogen, cyano or nitro, R.sup.4 is hydrogen, alkyl or aryl, the aromatic ring being substituted or unsubstituted, and X is CH or N, and fungicides containing these compounds.

Abstract: Moldings made from polyolefin particle foams having a mean density of from 0.015 to 0.100 g/cm.sup.3 and having at least two different regions whose densities differ by from 0.005 to 0.030 g/cm.sup.3 have a transition zone between the different density regions having a thickness of not more than 25 mm.

Abstract: Metal ions are removed from process wastewaters by using an electrically conducting, cathodically polarized filter-aid layer whose potential is at least 50 mV more negative than the redox potential of the metal ions to be removed, by passing the metal ion-containing water through the filter-aid layer and periodically renewing the filter-aid layer at intervals of from 2 to 180 minutes by backwashing, classifying and precoating processes.

Abstract: A supported catalyst for ethene polymerization by Phillips catalysis is disclosed. The supported catalyst is prepared by (1) mixing a porous silicate in an inert, organic liquid to produce a silicate suspension, (2) providing an ester of phosphoric acid or phosphorous acid, (3) mixing an organic liquid, a chromium compound, and a trialkylaluminum compound to produce a chromium compound/aluminum compound and combining the silicate suspension, the phosphorus compound and the chromium compound/aluminum compound suspension. This resulting suspension is evaporated to dryness to form a catalyst intermediate. The catalyst intermediate is heated in nitrogen, then heated in an oxygen-containing atmosphere, and then heated again in nitrogen to produce an activated catalyst. The activated catalyst is suspended in an organic liquid and treated with an alkyl boron compound to produce the desired supported catalyst.

Abstract: Oxalic acid derivatives of the formula IA--CO--COO--Y--X--D Iwhere A is an unsubstituted or substituted azetidine ring which is bonded via its nitrogen atom, Y is unsubstituted or substituted alkylene, X is oxygen or sulfur and D is unsubstituted or substituted alkyl or alkenyl or is monocyclic or polycyclic unsubstituted or substituted cycloalkyl, cycloalkylmethyl, cycloalkenyl or cycloalkenylmethyl or unsubstituted or substituted phenyl, phenylalkyl or phenylalkenyl, their preparation and growth regulators containing them.

Abstract: An apparatus for washing out photopolymer printing plates by means of solvents, drying the printing plates and recovering the solvents, a conventional washout station and a conventional drying station being connected to a solvent recovery means integrated in the drying station, which consists of the following parts:a hermetically sealing drying chamber for the printing plates, having an adjustable hood (15) and stationary panel (16), with panel heaters (18a, 18b) inserted in the hood and panel,a system which is connected to the interior space formed when the drying chamber is closed and which consists of a heat exchanger (25) for cooling the solvent vapor/air mixture, formed by drying the printing plates in the drying chamber, and condensation of the solvents,a solvent separator (26) for separating off the liquefied solvents,a vacuum pump (27) and a buffer vessel (33) for sucking up the solvent vapor/air mixture and compressing the solvent vapor/air mixture,a heat exchanger (28) for increasing the temperature

Abstract: There is provided an improved method and apparatus for continuously winding yarn on a dual chuck winding machine which utilizes tailmaker cylinders. The tailmaker cylinders are mounted on a bracket which is substantially independent of the vertically upward movement of a take-up head. Thus the tailmaker cylinders will not interfere with apparatus located above the take-up head when the take-up head is at or near its up position.

Abstract: A crop protection agent containing an active ingredient and based on a polymeric carrier, the active ingredient being adsorbed onto, dissolved in or otherwise bound to the said carrier, contains, as the polymeric carrier, a macroporous crosslinked, preferably styrene-containing, polymer having a particle size such that the said agent can be distributed by means of a conventional apparatus for applying crop protection agents, the active ingredient being taken up in the carrier by absorption.