Abstract: Process for mass-coloring high-molecular organic material, which comprises using a metal complex of the formulae I and/or Ia ##STR1## in which R is a hydrogen or chlorine atom or a methyl or methoxy group, R.sub.1 is a hydrogen atom, C.sub.1 -C.sub.4 -alkyl or phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, --NO.sub.2, --CONH.sub.2 --CONHR.sub.2 or C.sub.2 -C.sub.5 -N-alkylcarbamoyl, X is --CH.dbd. or --N.dbd., M is a divalent transition metal, and A is phenyl or substituted phenyl and R.sub.2 is alkyl, phenyl or substituted phenyl.The resulting colorations are distinguished by high tinctorial strength and good fastness properties, such as light, weathering and migration fastness properties.

Abstract: Polymeric compositions endowed with high flame self-extinguishing properties, comprising a polymer selected from amongst olefinic polymers, polystyrene, polybutylene terephthalate, SAN and ABS copolymers, and also, for 100 parts of composition:(a) 20-50 parts of piperazine acid pyrophosphate;(b) 0-3 parts of at least a compound selected from TiO.sub.2, SiO.sub.2, silicic acid, in powder having particle size .ltoreq.0.1 micron;(c) 0-35 parts of at least a compound selected from ammonium polyphosphate, melamine, melamine phosphate and pyrophosphate, polycarboxypiperazine, ethylene urea/formaldehyde condensates, as a substitute for an equal weight of compound (a), and in such amount that the composition still contains at least 5 parts of such compound (a).

Abstract: A nucleating agent comprising either a substantially non-polar wax or an inert inorganic finely divided powder is incorporated in a thermoplastics polymer, e.g. polyethylene. Thus reduces the spherulite size of the material and thus increases its breakdown field strength.

Abstract: Novel polycondensed compounds containing piperidine groups of polycarbamate structure, of the general formula: ##STR1##

Abstract: Flame retardant thermoplastic compositions are described which comprise 30-98% by weight thermoplastic, 1-40% by weight of a silicone fluid, 1-20% by weight of metal soap precursors and 1-20% by weight of a silicone resin. Such compositions offer simpler processing, improved impact resistance and other advantages over conventional flame retardant thermoplastic compositions.

Abstract: A continuous process for incorporating additives into a thermoplastic fluid blend is provided; said additives typically being sensitive to the temperature at which the blend is produced, said process comprising the steps of blending a high viscosity silicone fluid and thermoplastic composition initially and feeding the additives with more thermoplastic into the extruder for blending.

Abstract: A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of a dibenzylidene sorbitol derivative of the following formula ##STR1## wherein R and R' are different from each other and each represents a member selected from the class consisting of a hydrogen atom, a chlorine atom, alkyl groups having 1 to 3 carbon atoms and alkoxy groups having a C.sub.1 -C.sub.3 alkyl moiety.

Abstract: Integrally blended additives, consisting of a ternary mixture of gamma methacryloxypropyl trimethoxysilane, trimethylolpropane triacrylate and a siloxaneoxyalkylene block copolymer, in the absence of dicumyl peroxide do not consistently improve the mechanical properties of mica filled polyolefins. This is especially true under "low shear" melt processing conditions e.g. employing a conventional screw design in a single barrel extruder. However, when the ternary mixture is combined with a small amount of dicumyl peroxide (neat or dissolved in vinyltrialkoxy silane) there is a consistent improvement in composite mechanical properties above that of the composites containing the ternary mixture alone and in comparison to mica filled polyolefin composites without any additive or composites containing the peroxide alone. Furthermore, thermal aging tensile strength retention is improved in mica filled polypropylene composites containing the ternary mixture combined with dicumyl peroxide.

Abstract: Enhanced lubricating properties and good heat stability upon processing are imparted to thermoplastic materials such as polyvinyl chloride, polypropylene and acrylonitrile-butadiene-styrene resins by the incorporation therein of a polyglycerol ester of a C.sub.8 to C.sub.22 fatty acid. The ester is characterized by a degree of polymerization ranging from 2 to 8 and a degree of acid substitution ranging from 1 to 10.

Abstract: Polyolefinic fibers having improved thermal bonding properties, containing from 0.01 to 5% by weight of dianhydride of the 3, 3', 4, 4' benzophenone tetracarboxylic acid or of an alkyl derivative thereof.

Abstract: A process for producing a porous film or sheet, which comprises melt-molding a composition prepared by compounding 100 parts by weight of a polyolefin resin with 25 to 400 parts by weight of a filler and 1 to 100 parts by weight of a liquid or waxy hydrocarbon polymer into film or sheet, and stretching the resulting film or sheet.

Abstract: Semi-crystalline polymer having a narrow molecular weight distribution and having incorporated therein a non-crystalline mobilizing additive which increases the free volume of the polymer, with such a combination preventing embrittlement of the polymer during and subsequent to irradiation sterilization.

Abstract: The present invention relates to a process for the viscosification of an aqueous liquid which includes the steps of forming a solvent system of an organic liquid or oil and a polar cosolvent, the polar cosolvent being less than about 15 weight percent of the solvent system, a viscosity of the solvent system being less than about 100 cps; dissolving a neutralized sulfonated polymer in the solvent system to form a solution, a concentration of the neutralized sulfonated polymer in the solution being about 0.01 to about 0.5 weight percent, a viscosity of the solution being less than about 200 cps; and admixing or contacting said solution with about 5 to about 500 volume percent water, the water being immiscible with the organic liquid and the polar cosolvent and neutralized sulfonated polymer transferring from the organic liquid to the water phase, thereby causing the water phase to thicken.

Abstract: Glycerides of higher fatty acids have been found to be effective as a discoloration inhibitor in very low concentrations for polyolefins.

Abstract: The present invention relates to semi-finished products in sheet or surfacing foil form for producing thermoplastic coatings with particular properties on finished parts produced by thermoforming or molding-stamping thermoplastic materials in plate or sheet form. These are constituted by: a basic mixture comprising 15%-95% by weight of reinforcing fiber, 85%-5% by weight of powder of at least one thermoplastic material, and, relative to this mixture, 2%-20% by weight of polyolefine dough, 1%-30% by weight of a binder, 0.2%-10% by weight of at least one floculant and if necessary a dispersing agent. These surfacing foils are characterized in that they contain: from 30 to 90% by weight of at least one polyolefine dough, from 2 to 15% by weight of binder, from 0.5 to 5% by weight of at least one floculant, the rest of the materials being composed of at least one powder element selected from among thermoplastics, fillers and pigments.

Abstract: An aqueous emulsion of an organic peroxide that is liquid at a temperature of 20.degree. C. and that is insoluble or has limited solubility in water is provided that has improved shelf-stability, shear-stability and process stability and has good dilutability and has a particle size of around 1.5 microns or less. The emulsion has from about 1 weight percent of the emulsion to about 70 weight percent of the emulsion of an organic peroxide that is a liquid at 20.degree. C. and in particular that has a half-life exceeding 60 hours at 212.degree. F. (100.degree. C.) and 20 minutes at 300.degree. F. (149.degree. C.) The emulsion also has about 0.005 to about 15 weight percent of the emulsion of a nonionic emulsifier blend. The emulsifier blend has three emulsifiers selected from polyalkylene glycol ethers, dialkylaryl polyether alcohols, and polyoxy-propylene-polyoxyethylene condensates and the like nonionic emulsifiers having a particular HLB range for each of the three emulsifiers.

Abstract: An aqueous emulsion of an organic peroxide that is liquid at a temperature of 20.degree. C. and that is insoluble or has limited solubility in water is provided that has improved shelf-stability, shear-stability and process stability and has good dilutability and has a particle size of around 1.5 microns or less. The emulsion has from about 10 weight percent of the emulsion to about 70 weight percent of the emulsion of an organic peroxide that is a liquid at 20.degree. C. and in particular that has a half-life exceeding 60 hours at 212.degree. F. (100.degree. C.) and 20 minutes at 300.degree. F. (149.degree. C.). The emulsion also has about 0.005 to about 15 weight percent of the emulsion of a nonionic emulsifier blend. The emulsifier blend has three emulsifiers selected from polyalkylene glycol ethers, dialkylaryl polyether alcohols, and polyoxy-propylene-polyoxyethylene condensates and the like nonionic emulsifiers having a particular HLB range for each of the three emulsifiers.

Abstract: Solutions of ultrahigh molecular weight polymers such as polyethylene in a relatively non-volatile solvent are extruded through an aperture at constant concentration through the aperture and cooled to form a first gel of indefinite length. The first gels are extracted with a volatile solvent to form a second gel and the second gel is dried to form a low porosity xerogel. The first gel, second gel or xerogel, or a combination, are stretched. Among the products obtainable are polyethylene fibers of greater than 30 or even 40 g/denier tenacity and of modulus greater than 1000 or even 1600 or 2000 g/denier.

Abstract: A polypropylene composition comprising a crystalline polypropylene and a precipitated calcium carbonate which is subjected to a surface-treatment with a suitable dispersant, and has an average particle diameter of from 0.1 to 0.4.mu..

Abstract: A fire-retarding resin composition composed of(a) a thermoplastic resin,(b) about 20 to about 60% by weight, based on the total weight of (a), (b) and (c), of a magnesium hydroxide powder whose surface is treated with an alkali metal oleate, and(c) about 0.1 to about 10% by weight, based on the total weight of (a), (b) and (c), of at least one fatty acid metal salt selected from the group consisting of magnesium oleate and aluminum oleate; and a fire retardant composition for thermoplastic resins, said composition comprising(b) a magnesium hydroxide powder whose surface is treated with an alkali metal oleate, and(c) at least one fatty acid metal salt selected from the group consisting of magnesium oleate and aluminum oleate, the weight ratio of (b) to (c) being from 2 to 600:1.

Abstract: An aqueous emulsion of an organic peroxide that is liquid at a temperature of 20.degree. C. and that is insoluble or has limited solubility in water is provided that has improved shelf-stability, shear-stability and process stability and has good dilutability and has a particle size of around 1.5 microns or less. The emulsion has from 1 weight percent of the emulsion to about 70 weight percent of the emulsion of an organic peroxide that is a liquid at 20.degree. C. and in particular that has a half-life exceeding 60 hours at 212.degree. F. (100.degree. C.) and 20 minutes at 300.degree. F. (149.degree. C.) The emulsion also has about 0.005 to about 15 weight percent of the emulsion of a nonionic emulsifier blend. The emulsifier blend has three emulsifiers selected from polyalkylene glycol ethers, dialkylaryl polyether alcohols, and polyoxy-propylene-polyoxyethylene condensates and the like nonionic emulsifiers having a particluar HLB range for each of the three emulsifiers.

Abstract: An improved flame-retardant thermoplastic compound based upon a surface modified alumina hydrate composition containing powdered alumina hydrate, a liquid mixture of C.sub.10 -C.sub.20 carboxylic acids and a solid mixture of C.sub.14 -C.sub.20 carboxylic acids. A preferred solid mixture comprises stearic acid and palmitic acid. Thermoplastic compounds made with polypropylene and an alumina hydrate composition containing isostearic acid together with the solid fatty acid mixture of the invention exhibit an increased melt index and reduced molding pressure compared with polypropylene compounds made with isostearic acid coated alumina hydrate and no solid fatty acid mixture.

Abstract: A procedure is provided for the production of clean, dustless particulate granules from dusty, dirty particles by treatment with a composition comprising a liquid polymeric substance, illustratively, epoxidized soybean oil, and a solid, low molecular weight polymer having a melting point in the range of about 95.degree. to 105.degree. C., illustratively, a polyethylene vinyl acetate copolymer in the proportions of from 1 part of solid polymer to 1 part of liquid polymeric substance to 2 parts of solid polymer to 1 part of liquid polymeric substance. In one modification of the procedure, the ingredients were charged to a Papenmeir mixer and the mixer was run at 1500 RPM until a temperature of 95.degree. C. was reached. The resulting product comprised clean, dustless uniform beads.

Abstract: Substantial improvement in the heat stability of rigid plastic products, such as polyvinyl chloride, is obtained by incorporating therein glyceryl monostearate having less than 4% contained glycerine.

Abstract: Waterproof filling medium, used in telecommunication cables with cellular insulation of polyethylene or polypropylene, is based on a mineral oil (with or without a gelling agent such as microcrystalline wax) and includes two non-polar additives. The first is soluble and of low enough molecular weight to reduce significantly the osmotic pressure of the base, but does not diffuse into the insulation below 80.degree. C.; and the second is polymeric and of high enough molecular weight to increase the resistance to flow to obtain the required non-draining property. Filling of cells in the insulation is inhibited.

Abstract: Polyolefin polymers can successfully be stabilized against the detrimental effects of UV-radiations by compounding them with a stabilizer belonging to the class of compounds containing a pyrrolidine ring and which are sterically hindered in the 3-position and also substituted in such position by substituents having a high molecular weight. The esters of the 2,2,5,5-tetraalkyl-4-methyl-3-methylol pyrrolidine are exemplary compounds; the adipic and the stearic esters are preferred.

Abstract: Process and composition relating to novel, fine denier, homogeneous, curly synthetic fibers are set out. The process comprises orientation of a fiber-forming, slowly crystallizing, synthetic polymer composition in fiber form, generally after melt spinning, such orientation resulting from application of a longitudinal tensile force to said fiber above the crystallization temperature range and maintaining it at least through such range during a controlled, substantially axially symmetric cooling of the fiber. The novel fibers have a substantially axially symmetric, residual tensile force differential between their outer sheaths and inner portions, are generally of helical configuration and can exhibit more than about fifteen turns per linear centimeter.

Abstract: A lubricant composition for processing polyolefin resins is disclosed. The lubricant composition comprises a mixture of from about 60 to 70 parts by weight of an N,N'-ethylenebis amide of a fatty acid or hydroxy-substituted fatty acid, from about 22 to about 32 parts by weight of a free fatty acid or hydroxy-substituted fatty acid, and from about 3 to about 13 parts by weight of a metal salt of a fatty acid or hydroxy-substituted fatty acid. The lubricant composition is particularly useful in the calendering of polypropylene homopolymers and copolymers.

Abstract: A resin composition of improved hue which comprises, in specified proportions, an olefin-based resin such as polypropylene and at least three specified antioxidants which are (1) 2,6-di-t-butyl paracresol, (2) tri(mono- and/or di-nonylphenyl)phosphite and/or distearyl pentaerythritol diphosphite, and (3) tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and/or octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate.

Abstract: A method of rapidly compounding melt forming resin, mica and chlorinated hydrocarbon wherein the mica has a coating comprising the chlorinated hydrocarbon, which method comprises providing a molten mass of the resin, contacting the molten mass with the coated mica and kneading the so contacted mica and resin to provide mixing thereof. The compounding is rapid and at optimal temperature.

Abstract: Flame retardant polyolefin compositions containing polymeric pentaerythrityl phosphonates and ammonium polyphosphate.