Abstract: Substituted phenylpropanals and a process for their manufacture by reaction of the corresponding phenylethenes with carbon monoxide and hydrogen at temperatures of from 50.degree. to 180.degree. C and pressures of from 20 to 1,500 atmospheres gauge, in the presence of rhodium carbonyl complexes. The phenylpropanals according to the invention have pleasant scents. 3-(4-Isopropyl-phenyl)-butanal-1 and 3-(4-tert.-butyl-phenyl)-butanal-1, in particular, have suitable scents for the preparation of flower oil. They are also valuable starting materials for synthesizing drugs, plant protection agents and dyes.

Abstract: N-Alkylglycinonitriles are manufactured by reacting N-alkylamines with formaldehyde and hydrocyanic acid under specific reaction conditions in respect of temperature, reaction time and hydrocyanic acid concentration. The products are starting materials for the manufacture of dyes, fungicides, bactericides, textile assistants and assistants used in dental cosmetics, gas purification and waterproofing.

Abstract: New polyether polyols of predetermined structure are prepared by reacting polyether bis alcoholates with selected bis epoxides. Specifically, a polyoxyalkylene glycol is converted to the bis alcoholate, and then the bis alcoholate is reacted with an equivalent amount of a glycol bis glycidyl ether, with the reactants being mixed together all at once. The polyether polyalcoholate thus obtained is converted to a high molecular weight polyether polyol by acid neutralization or ion exchange.

Abstract: Valuable substituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxides having a herbicidal action, herbicides containing these active ingredients, a process for controlling the growth of unwanted plants with these compounds, and processes for their manufacture.

Abstract: A process for the manufacture of homopolymers and copolymers of .alpha.-monoolefins of 2 to 6 carbon atoms by polymerizing the monomer or monomers by means of a Ziegler catalyst system comprising (1) a catalyst component containing titanium and (2) a particular compound of aluminum, magnesium or zinc, the atomic ratio of titanium from catalyst component (1) to metal (Me) from catalyst component (2) being from 1 : 0.1 to 1 : 500, wherein the titanium-containing catalyst component (1) employed is the solid-phase product (VI) obtained by (1.1) first bringing into contact (1.1.1) a particular finely divided, porous, inorganic oxidic material (I) and (1.1.2) a particular aluminum compound (II) dissolved in an organic solvent, to form a solid-phase product (III) and (1.2) then bringing into contact (1.2.1) the solid-phase product (III) obtained from stage (1.1) and (1.2.2) a solution (IV) which is obtained on bringing together (IVa) 100 parts by weight of a particular alcohol, (IVb) from 0.

Abstract: Photopolymerizable binders for UV-curing printing inks and coating compositions, which contain benzophenone-based photoinitiators and photosensitizers including p-dimethylaminobenzaldehyde and esters of p-dimethylaminobenzoic acid.

Abstract: The isolation and regeneration of catalysts of type I or IIclRh(CO)(PR.sub.3).sub.2 Ihrh(CO)(PR.sub.3).sub.3 II,where the R's are identical or different hydrocarbon radicals, to give the catalysts in a pure form, is effected by regenerating aqueous rhodium salt solutions, as obtained on treating distillation residues of hydroformylation mixtures with oxygen-containing mineral acids and peroxides, by a method wherein the said aqueous rhodium salt solutions are treated with a cation exchanger, the latter is then separated from the solution, the absorbed rhodium ions are desorbed with hydrochloric acid, the hexachlororhodate solutions, containing hydrochloric acid, are reacted, in the presence of a water-soluble organic solvent and a tertiary phosphine PR.sub.3, with carbon monoxide, or with compounds which eliminate carbon monoxide, at from 0.degree. to 150.degree.

Abstract: Process for the production of benzothiazoles from N-arylsubstituted thioureas by oxidative ring closure characterized by the use of chlorine as oxidizing agent and by the presence of catalytic amounts of bromine. Yield and quality of the benzothiazoles obtained are very good.

Abstract: Disperse azo dyes having a diaminopyrimidine as coupling component. The dyes give brilliant colorations on textile material of synthetic fibers which have excellent fastness properties, including fastness to light and fastness to dry-heat pleating and setting. These disperse azo dyes are identified by the formula: ##STR1## in which D is the radical of a heterocyclic diazo component or a substituted diazo component of the aniline series, one X is NH.sub.2 and the other X is unsubstituted or substituted cycloalkyl, aralkyl or aryl or substituted alkyl.

Abstract: Fibrids of polyolefins showing a high degree of fibrillation and a high specific surface area are obtained by flashing a pressurized solution or polyolefin in pentane or in a pentane-containing solvent by passing said solution through an orifice into a space which is at a lower pressure and in which shearing forces are applied to said solution. The fibrids directly obtained may be used, for example, for the manufacture of paper or for the manufacture of textile-like webs.

Abstract: There are disclosed a phosphorus-containing polyester and size compositions especially useful for sizing spun and continuous filament yarn produced from hydrophobic fibers and useful in protecting these fibers from abrasion during the weaving process. When the size is used alone or in mixtures with conventional size agents such as starches and polyvinyl alcohol, improved adhesion is obtained to hydrophobic fibers or blends thereof with cotton or other hydrophilic fibers. Polyester, polypropylene and polyamide and other fibers are effectively sized with the size compositions of the invention. The polyester consists of a branched chain phosphorus-containing polymer which is the reaction product of at least one dicarboxylic reactant, at least one diol or polyoxyalkylene glycol and a phosphorus acid reactant selected from the class consisting of phosphorus pentoxide, phosphoric acid and mixtures thereof.

Abstract: Curable unsaturated quick-thickening polyester resin molding compositions are obtained by adding special onium salts as thickening accelerators to unsaturated polyester resins.

Abstract: Fibrids of polyolefins showing a high degree of fibrillation and a high specific surface area are obtained by flashing a pressurized solution of polyolefin in pentane or in a pentane-containing solvent mixture at a temperature above the boiling point of the solvent by passing said solution through an orifice into a space which is at a lower pressure and in which shearing forces are applied to said solution. The fibrids directly obtained may be used, for example, for the manufacture of paper or for the manufacture of textile-like webs.

Abstract: A process for the manufacture of homopolymers and copolymers of .alpha.-monoolefins of 2 to 6 carbon atoms by polymerizing the monomer or monomers by means of a Ziegler catalyst system comprising (1) a catalyst component containing titanium and (2) a particular compound of the metals aluminum, magnesium or zinc, the atomic ratio of titanium from catalyst component (1) to metal from catalyst component (2) being from 1:0.1 to 1:500, wherein the titanium-containing catalyst component (1) employed is the solid-phase product (IV) obtained by bringing into contact (1.1) a finely divided, porous, inorganic oxidic material (I) which has the formula SiO.sub.2 . aAl.sub.2 O.sub.3 --, where a is a number from 0 to 2, and (1.2) a solution (II) formed on bringing together (IIa) 100 parts by weight of an alcohol of the general formula Z--OH, where Z is a saturated hydrocarbon radical of 1 to 8 carbon atoms, (IIb) from 0.01 to 6 parts by weight (calculated as titanium) of a titanium trihalide and (IIc) from 0.

Abstract: A turnaround control arrangement for a color video recording and playback system, in which a color burst frequency at turnaround time is recorded during a certain vertical blanking interval in a distinct pattern; and in which, in playback the tape reversal operation is initiated at least partially under control of this distinct pattern. This "turnaround flag" is also used to control the insertion of the sound signal carrier frequency of the system during turnaround, thereby to reduce the noise due to the loss of the recorded sound signal during turnaround in playback.

Abstract: Lubricants for synthetic fibers such as polyester and nylon are disclosed which are improved oxidation stable polyoxyalkylene lubricant compounds. Such lubricant compounds can be used alone as textile fiber lubricants or in combination with other polyoxyalkylene compounds useful as fiber lubricants but which are subject to oxidative degradation under conditions of heating at temperatures at least above 200.degree. C. An improved textile fiber is produced by the use of such fiber lubricants in conventional processes for producing continuous filament, false twist, textured yarn as well as other type yarns.The improved oxidation stable homopolymer and copolymer, i.e.

Abstract: Foams characterized by isocyanurate and urethane linkages are prepared by condensing: (a) an organic polyisocyanate with a polyol or (b) a quasi-prepolymer in the presence of a blowing agent and a catalytically effective amount of an alkali metal salt of an organic sulfinic acid. The catalysts of the invention offer the advantages of longer cream times and fully cured foams in acceptable times thus finding particular utility in pour-in-place and slab stock foaming applications.

Abstract: Dye intermediates of the formula ##STR1## where R.sup.1 is hydrogen, alkyl of 1 to 12 carbon atoms, phenyl which is unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, methoxy, ethoxy, chlorine or bromine, or phenylalkyl of 7 to 10 carbon atoms, R.sup.2 is hydrogen or R.sup.1 and R.sup.2 together are dimethylene, trimethylene or tetramethylene, which are unsubstituted or substituted by alkyl of 1 to 12 carbon atoms, R.sup.3 and R.sup.5 are hydrogen, alkyl of 1 to 12 carbon atoms, cyano-, chlorine-, methoxy- or ethoxy-substituted alkyl of 2 to 4 carbon atoms, cycloalkyl of 5 to 7 carbon atoms, phenylalkyl of 7 to 10 carbon atoms or trimethylene which is unsubstituted or substituted by 1 to 3 methyl and is bonded to the carbon atom in the 6-position or 6'-position of the benzene ring, R.sup.4 and R.sup.

Abstract: In the oxidation of propylene and/or acrolein, high-boiling or non-volatile byproducts are separated from the solvents used for absorbing the acrylic acid by treating the said solvents laden with byproducts with the hot reaction gases in such amounts that the major portion of the solvents evaporates, the residual solvent containing a high percentage of said byproducts then being discarded or worked up.

Abstract: A process for the manufacture of olefin polymers by polymerizing .alpha.-monoolefins of 2 to 8 carbon atoms by means of a catalyst which is obtained from a silicate carrier (component a), an organo-metallic compound containing alkoxide groups (component b) and a chromium compound (component c), wherein the catalyst employed is obtained by (1) first charging (1.1) a finely divided porous xerogel (component a) of the formula SiO.sub.2 . m Al.sub.2 O.sub.3, where m is a number from 0 to 2, with (1.2) a particular aluminum compound containing alkoxide groups (component b), (2) then charging (2.1) the product obtained from stage (1) with (2.2) a particular chromium compound (component c) by treatment with a solution of the chromium compound, with intimate mixing and evaporation of the solvent and (3) finally heating the product, obtained from stage (2), in an anhydrous stream of gas containing oxygen.