Abstract: Bismaleimide resin systems containing low viscosity epoxy resins and a swellable or soluble thermoplastic when utilized to impregnate intermediate modulus carbon fiber are capable of preparing quasiisotropic composites, which, when cured, exhibit compression strengths after impact of greater than 47-50 ksi after an impact of 1500 in-lb/in.

Abstract: Ionically crosslinked ethylene copolymers are prepared by reacting the corresponding ethylene copolymer in a mixing zone of a twin-screw extruder with a solid metal compound and subsequently pumping in water, and are used as adhesion promoters, laminating films, injection molded articles or cable sheathing.

Abstract: In a process for the peroxide-free grafting of ethylenically unsaturated carboxylic acids, carboxylic anhydrides and/or their derivatives to a homopolymer or copolymer of ethylene having a density less than 0.930 g/cm.sup.3, the monomers to be grafted are used in a concentration of from 0.01 to 0.5% by weight and the grafting reaction is carried out at from 210.degree. to 300.degree. C. in a conventional extruder or mixer in the absence of a free radical initiator. The graft copolymers are used for the preparation of ionomers and adhesion promoters.

Abstract: A process for the isolation of a carboxylic acid of the general formula (I)R.sup.1 --COOH (I),in which R.sup.1 denotes hydrogen, methyl, ethyl, or vinyl, from a dilute aqueous solution thereof by extraction with a secondary amide of the general formula (II) ##STR1## in which R.sup.1 has the meanings stated, and R.sup.2 and R.sup.3 are independently of each other C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.4 -C.sub.20 -cycloalkylalkyl, aryl, C.sub.7 -C.sub.20 -aralkyl, or R.sup.2 and R.sup.3 together form a 1,4- or 1,5-alkylene group which may be mono- to penta-substituted by C.sub.1 -C.sub.4 -alkyl, wherein the losses of secondary amide (II) are compensated by the addition of the corresponding amine of the general formula (III) ##STR2## in which R.sup.2 and R.sup.3 have the meanings stated above.

Abstract: A transition-metal catalyst component for a Ziegler catalyst system, obtainable by1) mixing an inorganic, oxidic carrier with a transition-metal starting component in an organic solvent,2) removing the solvent by evaporation,3) mixing the solid-phase intermediate from step (2) with3.1) an organoaluminum catalyst component of the formula AlR.sub.m X.sub.3-m, whereR is a C.sub.1 - to C.sub.18 -hydrocarbon radical,m is from 1 to 3, andX is OR, chlorine, bromine or hydrogen, and3.2) an organic carboxylate or an organosilicon compound or a mixture thereof in an organic solvent, and4) if desired, isolating the solid-phase intermediate by filtration, washing and drying,and the use thereof for the homopolymerization or copolymerization of ethene are described.

Abstract: Preforms are produced from ceramic and/or metallic fibers by injection molding or extruding a mixture containing the fibers and a thermoplastic binder, said thermoplastic binder being polyoxymethylene, which after the shaping is removed by treatment in a gaseous acid-containing atmosphere or in a gaseous BF.sub.3 -containing atmosphere.

Abstract: The present invention relates to a novel catalyst for the preparation of high molecular weight homopolymers and copolymers of ethene, which catalyst is obtainable by(1) loading a support based on silicon dioxide with(2) either chromium trioxide or a chromium compound capable of being converted to chromium trioxide under the conditions of stage (3) below and then(3) heating the resulting intermediate in a gas stream containing oxygen.the support (1) being a special silica xerogel obtained by extracting not more than 30% of the water from a silica hydrogel by means of an alkanol, an alkanone or a mixture thereof followed by drying, comminution and fractional screening.

Abstract: An aqueous laundry prewash stain remover composition, has on a weight basis 0.1 to 20% of at least one chelating agent from the group of citric acid, tartaric acid, and ethylene diamine tetracetic acid; 0.1 to 40% of a mixture of nonionic surfactants from the group of ethoxylated alcohols and propoxylated alcohols; 0.1 to 10% of propoxylated ethylenediamine known as N,N,N',N'-tetrakis (2-hydroxypropyl) ethylenediamine; 0.1 to 5% of alpha-olefin epoxide modified polyether thickener; 0.1 to 19.9% of an additional chelant from the group of isoserine diacetate and Beta-alanine diacetate; with the remainder of the composition being water. The composition provides enhanced stain removal on both oil and water-borne stains on a variety of fabrics. These formulations are solvent free, freeze/thaw stable, and do not precipitate on standing at room temperature.

Abstract: Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (S.sub.C*) behavior, so that they can be switched back and forth between two thermodynamically stable, optically distinguishable ferroelectric smectic liquid crystlaline S.sub.C* order states on exposure to a laser beam of sufficient luminous power, by applying an external electric field. The recording layers (a) themselves consist mainly or exclusively of novel polymers P having chiral mesogenic side groups.

Abstract: A process for the production of cellular plastics by the polyisocyanate polyaddition process, by reactinga) an organic and/or modified organic polyisocyanate withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) a low-molecular-weight chain extender and/or crosslinking agent,in the presence ofd) a blowing agente) a catalyst andf) assistants and/or additives,wherein the blowing agent (d) usedd1) a low-boiling, fluorinated or perfluorinated tertiary alkylamine, ora mixture of (d1) and at least one physical or chemical blowing agent (d2) which is different from (d1), and blowing agent-containing emulsions comprising the abovementioned blowing agent (d1) or a blowing agent mixture of (d1) and (d2) and the starting components (a), (b), (c) or (b) and (c).

Abstract: N-substituted azoles of the formula I ##STR1## where R.sup.1,R.sup.2, R.sup.3 are each hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.3 -C.sub.10 -cycloalkyl, nitro or cyano,Q is an unsubstituted or substituted azole group of the formulae IIa-IIf ##STR2## R.sup.4 to R.sup.15 denoting hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.10 -cycloalkyl or aryl which is unsubstituted or mono-, di- or trisubstituted by halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -haloalkoxy, andX is, in the case of the azole group IIa, --CH.sub.2 -- or --O(CH.sub.2).sub.n --, n being one of the integers 1, 2 or 3, or, in the case of the azole groups IIb-IIf, --OCH.sub.2 --,pesticides containing compounds I as active ingredients, and a process for combating pests.

Abstract: Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (S.sub.c*) behavior, so that they can be switched back and forth between two thermodynamically stable, optically distinguishable ferroelectric smectic liquid crystalline S.sub.C* order states on exposure to a laser beam of sufficient luminous power, by applying an external electric field. The recording layers (a) themselves consist mainly or exclusively of novel polymers P having chiral mesogenic side groups.

Abstract: Dispersants of increased bioeliminability or biodegradability for use in dye and pigment preparations, as tanning aids, in plastics production and in crop protection formulations contain from 3 to 50% by weight of one or more aromatic or long-chain aliphatic carboxylic acids, salts thereof or anhydrides thereof or a mixture thereof.

Abstract: A stable, aqueous pesticide dispersion composition comprising:(a) a water insoluble pesticide;(b) a polyoxyalkylene copolymer having surface active properties, said copolymer having the formulaY[(EO,PO).sub.m (PO).sub.n (EO,PO).sub.m, H].sub.xwherein Y is the nucleus of an organic reactive hydrogen compound having x reactive hydrogen atoms and up to 6 carbon atoms, x is an integer, EO is ethylene oxide, PO is a propylene oxide hydrophobe having an oxygen/carbon ratio of not more than 0.40, (EO,PO) represents a hydrophilic heteric block having an oxygen/carbon ratio of more than 0.

Abstract: The invention relates to water blown, low density, energy absorbing rigid polyurethane foam articles which exhibit minimal springback or hysteresis characteristics. The articles produced from the foams of the present invention maintain a constant crush strength of material up to about 70% deflection and are useful in appropriate automotive applications such as side impact bolsters.

Abstract: Thiocarboxylic esters of the formula I ##STR1## where the substituents have the following meanings: X is oxygen, sulfur, oxymethylene, methyleneoxy, thiomethylene, methylenethio, ethylene, ethenylene or ethynylene,Y,Z are each sulfur or oxygen, but Y and Z are not simultaneously oxygen,R is alkyl, mononuclear, dinuclear or trinuclear aryl or hetaryl, where aryl and hetaryl may be substituted,and fungicidal agents containing these compounds.

Abstract: An apparatus for preparing regular soft nodes in multifilamentary yarns composed of synthetic polymeric filaments includes at least two interlacers, each having a separate yarn passageway. The passageways are arranged in series so that each interlacer operates independently of the other on yarn traveling consecutively through each interlacer and so that yarn tension does not exceed 100 grams per 1000 denier.

Abstract: N-substituted azoles of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 are each hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.3 -C.sub.10 -cycloalkyl, nitro or cyano,Q is an unsubstituted or substituted azole group of the formulae IIa-IIf ##STR2## R.sup.4 to R.sup.15 denoting hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.10 -cycloalkyl or aryl which is unsubstituted or mono-, di- or trisubstituted by halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -haloalkoxy, andX is, in the case of the azole group IIa, --CH.sub.2 -- or --O(CH.sub.2).sub.n --, n being one of the integers 1, 2 or 3, or, in the case of the azole groups IIb-IIf, --OCH.sub.2 --,pesticides containing compounds I as active ingredients, and a process for combating pests.

Abstract: Salicylaldehyde derivatives and salicylic acid derivatives of the formula I ##STR1## where A is an unsubstituted or substituted phenyl radical, an unsubstituted or substituted 5-membered heteroaromatic radical having from 2 to 4 nitrogen atoms or two nitrogen atoms and additionally one sulfur or oxygen atom or an unsubstituted or substituted thienyl, pyridyl, naphthyl, quinolyl, indazolyl or benzotriazolyl radical, X is oxygen or sulfur, and the radicals R.sup.1 to R.sup.4 have the meanings given in the specification, processes and intermediates for their production, and their use as herbicides and bioregulators.

Abstract: The present invention relates to an improved process for producing, by means of a portable foaming apparatus having a static mixer, a polyurethane foam by reacting a reaction mixture comprised of a polyol, an organic isocyanate, a foaming/frothing agent, and a reaction catalyst, the improvement comprising employing monochlorodifluoromethane as at least a portion of said blowing/frothing agent in said reaction and employing an acid-blocked amine catalyst as at least a portion of said reaction catalyst in order to produce a CFC-free essentially closed-cell rigid or simi-rigid polyurethane foam.