Abstract: High-impact polyamide molding compositions contain as essential components(X) from 40 to 98% by weight, based on (X)+(Y), of a thermoplastic polyamide,(Y) from 2 to 60% by weight, based on (X)+(Y), of a rubberlike polymer which contains, as copolymerized units, an acrylic or methacrylic ester or an unsaturated carboxylic acid,(Z) from 0.001 to 2% by weight, based on (X)+(Y), of a metal compound selected from the group consisting of(Z.sub.1) salts of divalent, trivalent or tetravalent metals with C.sub.2 -C.sub.4 -carboxylic acids,(Z.sub.2) oxides of germanium or antimony and(Z.sub.3) alkyl orthotitanates and dialkyltin dilaurates.

Abstract: The invention is specifically concerned with an improvement in the process of manufacturing reinforced materials. The reinforced materials are conceived to include a wide variety of materials, the most notable being high density compressed gaskets. The improvement comprises mixing a cut solid (generally a cut fiber) with a body material to produce the reinforced materials. The solid is cut into particulates of highly variable size, the range in the size of the particulates being adjusted to optimize the characteristics of the resulting reinforced material. The cut solid is produced utilizing comminuting machines previously used for the recycle of waste products.

Abstract: A process for the preparation of esters of tetrahydropyran-4-carboxylic acid of the general formula I, where R.sup.1 is an alkyl, cycloalkyl, or aryl group, by treating butyrolactones of the general formula II, where R.sup.2 is a hydrogen atom, an alkyl group, or an acyl group --CO--R.sup.3, R.sup.3 being a hydrogen atom or an alkyl group with from 1 to 6 carbon atoms, with alcohols of the general formula III at temperatures of from 150.degree. C. to 400.degree. C. in the presence of acid catalysts.

Abstract: Pure hydroxylammonium salts of fatty acids of 1 to 4 carbon atoms are prepared by reacting hydroxylammonium sulfate and alkali metal salts of fatty acids with 1 to 4 carbon atoms in solution at elevated temperatures and separating off the hydroxylammonium salts of fatty acids of 1 to 4 carbon atoms by(a) reacting hydroxylammonium sulfate and alkali metal salts of fatty acids of 1 to 4 carbon atoms in solution in water or alkanols of 1 to 3 carbon atoms or mixtures thereof at 20.degree.-70.degree. C.,(b) evaporating the solvent out of the reaction mixture to obtain a dry residue,(c) isolating the hydroxlammonium salts of fatty acids of 1 to 4 carbon atoms from the dry residue thus obtained by sublimation under reduced pressure.

Abstract: Compounds useful as stabilizers have the general formula I ##STR1## where the radicals are as defined in claim 1.

Abstract: Surfactant-modified metal catalysts which can be used in a process for hydrogenating mediators.

Abstract: 2,2-Disubstituted 3-chloropropionic esters I ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -oxaalkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -oxaalkenyl, aryl or C.sub.7 -C.sub.12 -aralkyl or R.sup.1 -C-R.sup.2 is 5-, 6- or 7-membered ring, R.sup.3 is C.sub.2 -C.sub.6 -oxaalkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -oxaalkenyl or C.sub.7 -C.sub.12 -aralkyl, are prepared by converting 2,2-disubstituted 3-hydroxypropanals II ##STR2## into the esterdiol III ##STR3## reacting this esterdiol III in the presence of a transesterification catalyst with an alcohol R.sup.3 OH to give the 3-hydroxyester IV ##STR4## reacting the hydroxyester IV with a stoichiometric or greater than stoichiometric amount of the thionyl chloride and thermally decomposing the product to give the chloropropionic ester I.

Abstract: Sulfatobetaines are prepared by reacting an adduct of a base having a tertiary N atom and sulfur trioxide with an alkylene oxide in the presence of an alkylene carbonate as a solvent.

Abstract: 4-methyl-4-phenyl-1-pentanals of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sup.2 is hydrogen or methyl, with the exception of 4-methyl-4-phenyl-1-pentanal, and the use of the methylphenylpentanals of the formula I for imparting fragrance properties to, or improving or modifying the fragrance properties of, perfumes and perfumed products, and the preparation of these compounds by hydroformylation of the corresponding 3-methyl-3-phenyl-1-butenes of the general formula II ##STR2## and, if required, subsequent reaction with formaldehyde and partial hydrogenation.

Abstract: Disk-shaped nickel-plated aluminum substrates which are used as bases in the production of magnetic recording disks having a magnetizable metallic layer are surface treated by polishing and texturing.

Abstract: This invention relates to a process for the preparation of non-cellular or cellular polyurethane elastomers by the reaction of(a) an organic polyisocyanate, preferably in the form of NCO groups containing prepolymers and/or modified urethane group containing organic polyisocyanates with(b) a higher molecular weight compound having at least two reactive hydrogen atoms,(c) a polyester polyol containing tin and/or titanium compounds as catalysts, and optionally(d) a chain extending agent and/or crosslinking agent in the presence of(e) blowing agents,(f) auxiliaries and/or additiveswhereby from 0.1 to 10 parts by weight, based on 100 parts by weight of the (b) component, of a polyester polyol is used as a catalyst, which is prepared by the polycondensation of organic polycarboxylic acid with multivalent alcohols in the presence of from 0.002 to 5 weight percent, based on the weight of the polycondensation mixture, of a titanium and/or tin compound used as a catalyst at temperatures from 150.degree. to 200.degree.

Abstract: Polyoxymethylene molding materials having improved heat stability and consisting of(A) one or more polyoxymethylene homopolymers and/or copolymers and(B) one or more antioxidants having a sterically hindered phenolic structure,(C) with or without additives, contain(D) as an additive, one or more alkaline earth metal silicates and/or alkaline earth metal glycerophosphates, advantageously in an amount of from 0.002 to 2.0% by weight, based on the weight of component (A),for improving the heat stability, reducing the tendency to discoloration and minimizing the free formaldehyde content.To prepare the novel polyoxymethylene molding materials, the components are advantageously melted in an extruder at from 150.degree. to 260.degree. C.The polyoxymethylene molding materials are useful for the production of films or, preferably, moldings, which are used, for example, in the automotive, electrical appliances and electronics industries.

Abstract: Polyaryl ether ketones are prepared by reacting aromatic dihydroxy compounds with aromatic dihalogen compounds in polar aprotic solvents in the presence of alkali metal carbonates, in particular by reacting aromatic dihydroxy compounds I ##STR1## or ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof, n and m each being 0 or 1, with aromatic dihalogen compounds ##STR2## or ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof, r and s each being 0 or 1, A being oxygen or a chemical bond and X being chlorine or fluorine.

Abstract: The invention relates to a reduced temperature coating composition which dries to form films exhibiting desirable properties comprises a blend of (1) a principle film forming resin with reactive functional groups, typically hydroxyl, and (2) a fully alkylated, low imino aminoplast.

Abstract: Crop oil concentrates are disclosed which not only increase the herbicidal efficacy of herbicides from diverse chemical classes, but moreover assist in defeating the apparent antagonism which often arises when two or more herbicides are utilized together.

Abstract: Bismaleimide resin systems containing one or more bismaleimides and an alkenyl and/or alkynyl substituted phenylated dicyclopentadiene comonomer have high glass transition temperatures and impact resistance.

Abstract: A yarn comprising polyester fibers having an improved combination of properties including darker dyeing capability, good thermal dimensional stability, and good light stability and dye lightfastness can be prepared by drawing and annealing a feeder yarn having a birefringence (.DELTA.n) of at least 0.0175 at carefully controlled temperatures and draw ratios.

Abstract: Sizing agents for paper are based on finely divided aqueous dispersions of copolymers obtainable by copolymerizing from 40 to 140 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers,the weight percentages (a), (b) and (c) always adding up to 100, in the manner of an emulsion polymerization in 100 parts by weight of an aqueous solution containing in solution from 2.7 to 15% by weight of a degraded starch having a viscosity n.sub.i from 0.04 to less than 0.12 dl/g at from 40.degree. to 100.degree. C. in the presence of a peroxide initiator.

Abstract: A conductive fiber is made by an electroless plating process which is used in conjunction with a wet spinning process. The polymer must be catalyzed before the wet gel is collapsed. The resulting filament has a conductive region which is at least partially coincident with the polymer structure.

Abstract: Vinylureas of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or an unsubstituted or substituted alkyl or cycloalkyl radical, orR.sup.1 and R.sup.2 together form part of an unsubstituted or substituted carbocyclic ring,R.sup.3 is an unsubstituted or substituted alkyl or cycloalkyl radical,X is nitrogen or C--R.sup.6,Y is nitrogen or CH, andR.sup.4, R.sup.5 and R.sup.6 are each hydrogen, halogen or alkyl, and fungicides containing these compounds.