Abstract: A lightly colored thermoplastic composition, suitable for fabrication into panels or sheets, and having high weatherability, comprises:(a) 100 parts by weight of polyolefin elastomer;(b) 15 to 130 parts by weight of crystalline or partially crystalline polyolefin;(c) 30 to 240 parts by weight of chalk and/or siliceous chalk;(d) 0.5 to 20 parts by weight of titanium dioxide; and, optionally,(e) up to 40 parts by weight of bitumen and/or mineral oil; and(f) up to 15 parts by weight of lubricant.

Abstract: As insulation for electric cables, there is provided an improved polyolefin having low shrinkage values, high elongation values, even after aging, the desired electrical insulation properties, and comprising partially crystalline, randomly copolymerized polypropylene having a proportion of ethylene, butene-1 and/or 1-hexene incorporated by polymerization of 1-6% by weight, a xylene-soluble proportion of 2-20% by weight, a viscosity value I of 200-400 cc./g., a melt flow index value (MFI.sub.190/5) of 1-20 g./10 min., and an elongation value of above 700%.

Abstract: A structured, permanently moldable textile sheet is impregnated on the backside only with an aqueous synthetic resin dispersion, comprising a synthetic resin which comprises 75-95% by weight of a thermoplastic component and 5-25% by weight of a plasticizing component. The resultant impregnated sheet is thereby reinforced and can be permanently molded and glued to an underlying surface without additional preprocessing.

Abstract: A process for preparing a 2,3,4,4-tetrachloro-3-butenoic acid ester comprises reacting tetrachlorocyclobutenone in the presence of hexachloro-1,3-butadiene with an alcohol at a temperature of 125.degree.-200.degree. C.

Abstract: In a process for the manufacture of a p-alkylphenol by alkylating phenol with an olefin of 3 to 4 carbon atoms, at an elevated temperature, in the liquid phase, in two reaction zones in series and in the presence of a strongly acidic ion exchange resin as the catalyst, an improvement comprises:(a) passing in a first reaction stage at a temperature of 80.degree.-140.degree. C. over a suspended catalyst, the olefin as a gas at a gas velocity of 30 to 20 cm/second, based on the free cross-section of the empty reactor and on a molar volume of 25 liters per mole of olefin, from below into the reaction mixture; and(b) passing the resulting liquid reaction product, into a second reaction stage, at a temperature of 80.degree.-140.degree. C. over a fixed-bed catalyst;wherein a catalyst having an exchange capacity of 70-120 m. equivalents/100 cm.sup.3 is used in both reaction stages.

Abstract: In a process for removing monomeric impurities from an aqueous dispersion of homopolymers or copolymers of vinyl chloride having a surface tension below 60 dyn/cm. by treatment with steam while avoiding foam formation by a rapid lowering of the pressure at high flow velocities, the improvement which comprises:(a) continuously mixing said dispersion in a flow pipe with steam at a steam pressure of 800-4660 millibars for an average residence time of about 0.01-5 seconds;(b) continuously passing the resultant admixture from said flow pipe at a velocity of at least 30 meters per second directly to a degasification vessel having a pressure of 133-660 millibars; and(c) continuously recovering a polymer product containing less than 20 p.p.m. residual monomer impurities therefrom.

Abstract: The low molecular water-soluble onium-catalyst dissolved in the liquid mixture of epoxy resin and excess epihalohydrin obtained by the reaction in the presence of base of a compound having --OH, --SH, --COOH or .dbd.NH groups with excess 1-halo-2,3-epoxyalkane, is separated therefrom by contacting the liquid mixture, either prior to or after separation therefrom of the precipitated salt produced by the reaction, with at least about 5 parts by weight based on the weight of the catalyst present in the liquid mixture, of an adsorbent containing or capable of absorbing at least 1% by weight of water so strongly that it cannot be removed either by drying over concentrated sulfuric acid or by drying at 110.degree. C. and can only be partially removed by drying at 200.degree. C. under vacuum (about 1 millibar), and then separating the adsorbent with catalyst adsorbed thereon from the liquid mixture.

Abstract: In a liquid coating composition comprising a small amount of solvent or no solvent, a binder and optionally conventional auxiliary agents, wherein the binder consists essentially of:(A) 45-10% by weight of an aminoplast, the low molecular weight precursors thereof, or mixtures thereof; and(B) 55-90% by weight of an at least difunctional polyester or a mixture of such polyesters; wherein the polyester component B has been produced by the condensation of a conventional alcohol component I with an acid component III, wherein component III consists essentially of a mixture of:III.1 67-92 molar percent of hexahydroterephthalic acid or a lower alkyl ester thereof; andIII.

Abstract: A process for the production of polybutadiene having a high cis-1,4-content by the polymerization of 1,3-butadiene in an aliphatic solvent in the presence of a catalyst consisting essentially of(a) an organoaluminum compound,(b) water, and(c) a cobalt compound soluble in the aliphatic solvent,is improved by the combination wherein the 1,3-butadiene is polymerized at a temperature of 0.degree.-100.degree. C., the aliphatic solvent is hexane; the catalyst consists essentially of(a) diethylaluminum chloride,(b) water, and(c) cobalt octoate, cobalt naphthenate or a mixture thereof;and the catalyst components are added to a mixture of the 1,3-butadiene and the hydrocarbon solvent in the sequence of (a), then (b), and then (c), wherein the mixture is homogenized after addition of each catalyst component.

Abstract: Ethylene and at least one other 1-monoolefin monomer, alone or in admixture with a non-conjugated hydrocarbon diene monomer, are copolymerized in the presence of organic chlorine compound-activated Ziegler-Natta catalyst, wherein the organic chlorine compound is a hydrocarbon or a halohydrocarbon ester of up to 15 carbon atoms of 2,3,4,4-tetrachloro-3-butenoic acid.

Abstract: Powder coating compositions, for coating metallic surfaces at high temperatures, comprising saturated, high-molecular thermoplastic copolyesters obtained by the condensation of terephthalic acid and other dicarboxylic acids with 1,4-butanediol and, optionally, other diols, and conventional auxiliary agents and additives.

Abstract: Aqueous emulsions of olefin polymers and bitumen comprise:(a) 5-30% by weight of an extensively amorphous poly-.alpha.-olefin or poly-.alpha.-olefin mixture having viscosity numbers J of 5-400 cc./g. and ether-soluble proportions of more than 60%, wherein up to three quarters by weight of these polyolefins can be replaced by an elastomer;(b) 5-40% by weight of a hydrocarbon oil optionally containing a drying oil, wherein the hydrocarbon oil is a polybutene oil or the distillation residue form cyclododecatriene manufacture and/or a mixture of both;(c) 10-40% by weight of a bitumen;(d) 0-10% by weight of a chlorinated paraffin having a chlorine content of 45-60% and/or an aromatic bromine compound;(e) 0-20% by weight of a conventional additive;(f) 2-15% by weight of a surfactant; and(g) 15-78% by weight of water.

Abstract: An improved process for the conversion of allyl and methallyl chloride to sodium allyl and methallyl sulfonate, respectively, by reaction with aqueous sodium sulfite which comprises conducting the reaction at 33.degree.-70.degree. C. and 33.degree.-80.degree. C., respectively, while maintaining the pH at 7-11 throughout the reaction.

Abstract: Cyclic esters of dodecanedioic acid with aliphatic diols of 2-12 carbon atoms in the chain and substituted by up to two alkyl of 1-4 carbon atoms, are produced by thermolysis of corresponding linear polyesters under reduced pressure in the presence of catalysts by subjecting the linear polyesters to thermolysis at temperatures between 200.degree. and 300.degree. C., and by utilizing as catalyst a tin(II) salt of an aliphatic monocarboxylic acid of up to 18 carbon atoms, of an aromatic or araliphatic monocarboxylic acid of up to 36 carbon atoms, of an aliphatic or aromatic hydroxy-, poly-, ketocarboxylic acid or of a dicarboxylic acid of up to 18 carbon atoms; or a mixture of an organotin compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl of 1-18 carbon atoms, or aryl or aralkyl of 6-36 carbon atoms, and an O,O-dialkyl-(3,5-di-tert.-butyl-4-hydroxybenzyl)-phosphonate wherein each alkyl is of 2-18 carbon atoms.

Abstract: Vulcanizable polyalkenamer molding compositions comprising: (a) a polyoctenamer having an extensively cyclic structure with a trans-content of 50-70% and a reduced specific viscosity of 0.8-1.7 (dl./g.); and (b) conventional elastomer vulcanizing agents and additives have improved flow properties suitable for thermoplastic molding techniques together with mechanical properties in the vulcanizate comparable to SBR rubber.

Abstract: The necessity of opening a large polymerization reactor, in order to introduce a polymerization catalyst between charges in the batch suspension of polymerization of vinyl chloride on a commercial scale, is eliminated, thereby avoiding vinyl chloride emissions into the atmosphere, by isolating a segment of a charging conduit for a polymerization reactor containing vinyl chloride under pressure proximate the reactor; partially filling the isolated segment with water; charging the isolated segment above the water therein with a water-insoluble polymerization catalyst; and displacing into the reactor from the catalyst-charged segment first the water therein and then the catalyst therein with vinyl chloride under pressure.

Abstract: A process for the production of synthetic rubber latices having a high solids content and a low viscosity by low-temperature redox emulsion polymerization with subsequent agglomeration of the latex particles with oxidized polyethylene oxides, comprises conducting the redox emulsion polymerization in a system wherein the ratio of monomers to water is 0.85 to 1.25; the amount of emulsifier is 2.0 to 4.0 parts by weight per 100 parts by weight of monomers; the alkali metal salt concentration in the aqueous phase is 35-70 mmol./l; and the average rate of conversion of monomers is 8% per hour.

Abstract: A thermoplastic material, suitable for fabrication into panels or sheets, and having high strength at elevated temperatures comprises:(a) 100 parts by weight of polyolefin elastomer;(b) more than 50, but no more than 150 parts by weight of crystalline or partially crystalline polyolefin;(c) 30 to 150 parts by weight of carbon black; and, optionally,(d) up to 50 parts by weight of bitumen;(e) up to 30 parts by weight of mineral oil;(f) up to 240 parts by weight of chalk or siliceous chalk; and(g) up to 10 parts by weight of lubricant.

Abstract: Acyclic conjugated diolefins of 4-6 carbon atoms can be telomerized or oligomerized by themselves or with H-acidic compounds in the presence of an activated palladium (triarylphosphine) catalyst prepared by oxidatative removal of 1-3.5 molar equivalents of triphenylphosphine from palladium tetrakis(triphenylphosphine). The thus-obtained, activated palladium complex is recovered, after termination of the telomerization and/or oligomerization, by adding 2-6 molar equivalents of triphenylphosphine to the reaction product, distilling the telomer or oligomer therefrom and recovering the thus-regenerated palladium tetrakis(triphenylphosphine) from the distillation residue.

Abstract: Aqueous dispersions of homo- and co-polymers of vinyl chloride are freed of residual monomer in a continuous manner by mixing the dispersion with steam in a first flow pipe maintained at reduced pressure; degasifying the mixture to a first degasification vessel maintained at a lower pressure; again mixing the degassed mixture with steam in a second flow pipe, also maintained at reduced pressure and having fluid flow diverting means therein; and then again degasifying the mixture in a second degasification vessel maintained at a lower pressure than the second flow pipe.