Abstract: Phosphite-free polycarbonate molding compositions are provided which contain either a boric acid ester containing oxetane groups, a mixture of a boric acid ester containing oxetane groups and a boron-free oxetane compound or a mixture of a boric acid ester which is free from oxetane groups and a boron-free oxetane compound, in amounts between about 0.01 and 1% by weight, relative to the weight of pure polycarbonate resin. A process for stabilizing phosphite-free polycarbonate compositions to light and heat without impairing their resistance to hydrolysis is also provided by the incorporation of either a boric acid ester containing oxetane groups, a mixture of a boric acid ester containing oxetane groups and a boron-free oxetane compound or a mixture of a boric acid ester which is free from oxetane groups and a boron-free oxetane compound.

Abstract: A stabilizer composition is disclosed that enhances the resistance to deterioration upon heating of vinyl chloride polymers. The stabilizer composition comprises (A) a metal salt of a sulfur--and nitrogen--free monocarboxylic acid or a phenol and (B) a metal P-hydrocarbonphosphonate having at least one to thirty carbon atoms in the hydrocarbon group.Vinyl chloride polymer compositions stabilized with the above disclosed stabilizer composition are also disclosed.

Abstract: Stabilizers for organic polymeric materials are provided, comprising a phosphonic acid ester, a phenolic antioxidant and a 2,2,6,6-tetramethyl-4-piperidyl ether alcohol or ether having the general formula: ##STR1## wherein R.sub.2 is lower alkyl or hydroxyalkyl having from one to six carbon atoms;R.sub.3 is a hydrogen atom, provided R.sub.2 is hydroxyalkyl; ##STR2## R.sub.2 and R.sub.3 may be taken together to form ##STR3## Y is selected from the group consisting of hydrogen and O.

Abstract: An improved wet strength resin prepared from a polyamine and an epihalohydrin is obtained with improved yield if the polyamine is formed by the polymerization of a quaternary amine in the presence of an anion derived from an acid in which the final pKa is less than 2.

Abstract: There is disclosed a process for reducing the acetaldehyde content and the generation rate of acetaldehyde of polyethylene terephthalate chip which has a crystallinity of at least about 30% in order to render the polyethylene terephthalate suitable for making containers which are useful in the carbonated beverage industry. This process comprises stabilizing the polyethylene terephthalate by heating it at an elevated temperature in air and maintaining an air to chip ratio at a predetermined value of at least about 0.8 standard cubic foot of air per minute/pound of resin per hour and at a vapor velocity of at least about 0.5 foot per second. The air used in the stabilization process has a dew point of less than about -30.degree. C.The stabilized polyethylene terephthalate produced by this process has an acetaldehyde level of less than about 2.5 parts per million, a generation rate of acetaldehyde of less than about 3.0 parts per million per minute and an intrinsic viscosity of from about 0.60 to about 0.

Abstract: A process for preparing an improved asphalt mixture by adding coal materials thereto. Low carbon content coal materials are separated into first and second portions, the first portion being soft-burned at approximately 600.degree. F., and the second portion being exposed to a number of wetting and drying cycles, followed by a thorough leaching. The first and second portions are crushed and screened to produce a fine particulate coal material having a maximum diameter passing through a 200 mesh screen, and a larger size coal material having a maximum diameter of 3/4 of an inch. In a first embodiment, an asphalt paving material is produced by adding the fine particulate coal materials to an asphalt/aggregate mixture in a proportion of approximately 75% of the first portion and approximately 25% of the second portion of the fine particulate coal materials, such that the coal materials equal approximately 6 to 8% by weight of the total mixture. The resulting asphalt mixture is heated at approximately 300.degree.

Abstract: Linear, branched and/or cross-linked block polymers of polyphenylene oxides and polystyrene are described. The polyphenylene oxide-polystyrene block polymers can be molded, calendered, or extruded as films, sheets, fibers, laminates or other useful articles of manufacture.

Abstract: The present invention relates to a process for the improvement of the flame retardant properties of a polymer composition which comprises incorporating therein an effective flame retardant amount of a halogenated phospholane oxide. The resultant products are useful as rigid or flexible foams and shaped articles having greatly improved flame retardant and smoke suppressant properties. The use of the halogenated phospholane oxide also imparts stability to the products, thus overcoming difficulties encountered with volatile phosphorus compounds which had been used heretofore with polymeric compositions such as polyurethanes.

Abstract: A stabilizer composition for molding compositions based on polyvinyl chloride and/or mixed polymers containing predominantly vinyl chloride comprising(a) a partial ester of pentaerythritol with a fatty acid,(b) calcium and/or zinc stearate, and/or the corresponding palmitate,(c) a waxy hydrocarbon and/or a fatty acid, and(d) an antioxidant.

Abstract: A heat stabilized polyvinylidene fluoride composition comprising polyvinylidene fluoride and a stabilizing amount of a phosphinate.

Abstract: Novel piperidine-spiro-hydantoin derivatives represented by the general formula (I) and use thereof as light stabilizers for synthetic polymers are described: ##STR1## The compounds are distinguished by an improved stabilizing effect in various synthetic polymer compositions, such as polyolefins, against light- and/or heat-induced deterioration thereof, small volatility upon heat-processing or during storage of shaped articles containing the compounds, and resistance to extraction with water and solvents.

Abstract: Stabilizers for organic polymeric materials are provided, comprising a 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester having the general formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of ##STR2## Y is selected from the group consisting of hydrogen and O; R.sub.

Abstract: The use of magnesium azelate as a new rusting inhibitor in metal paints is described. The preferred inhibitor is a mixture of magnesium azelate and a basic oxide e.g. magnesium oxide in the proportion of 3:1 to 10:1 by weight. The new formulations are substitutes for lead oxide or zinc chromate primers and confer excellent protection on iron and steel.

Abstract: The invention concerns latices of vinyl polymers which are stable in electrolytes. They comprise a dispersion of particles of an average diameter from 0.03 to 5 .mu.m. They are made up of a core of vinyl and/or diene polymer carrying carboxylic and/or sulphonate groups and a peripheral layer of vinyl polymer with ##STR1## groups at the ends. Applications of the latices in reproduction, in the textile, paint and varnish industries in the glue and paper industries and also for fixing proteins and in the manufacture of reagents for diagnosis.

Abstract: Physical blends of branched polyphenylene and polyphenylene sulfide exhibit superior flexural strength and flexural modulus properties after high-temperature aging to either component alone.

Abstract: This disclosure relates to a new organic base, asbestos-free, asphalt-aluminum coating composition for use on roofs and the like. By the use of a gelling agent in place of asbestos fiber, a product with superior reflectivity is obtained which contains less aluminum than typical asbestos-containing coatings. In addition, since no water is used in the formulation of the composition, the possibility of producing such undesirable by-products as hydrogen gas or aluminum hydroxide is virtually eliminated.

Abstract: Esters and amides from 4-hydroxy-and 4-amino-polyalkylpiperidines and hydroxybenzylmalonic acids substituted at the central carbon atom with an organic residue, preferably alkyl-, esteralkyl- or phosphonoalkyl-groups, are excellent stabilizers for organic polymers, especially for polyolefins. They protect the polymers as well against light degradation as against thermo-oxidative degradation. The compounds can be prepared by hydroxybenzylation of the corresponding derivatives of substituted malonic acids. Bis-malonic acid derivatives may be obtained from the monomalonics by reaction with formaldehyde.

Abstract: Alkylated 1,1'-biphenyl-2,2'-diyl phosphiates are prepared by reacting alkylated 2,2'-biphenol with phosphorus trichloride in an organic solvent an then reacting the intermediate with an alcohol or a thiol. Said phosphites are useful as stabilizers of organic polymers and lubricating oils, especially as process stabilzers for polyolefins, polyesters and polycarbonates.

Abstract: Mono- or bistetrazoles of the formula I ##STR1## wherein n is 1 or 2, R.sup.1 represents hydrogen or a monovalent hydrocarbon radical and R represents a monovalent or divalent hydrocarbon radical which can be interrupted by oxygen, NY, sulfur, SO.sub.2 and/or CO.sub.2 or substituted by OH or SH, and wherein Y represents hydrogen or a monovalent hydrocarbon radical. These compounds, especially when used in combination with epoxy plasticizers and/or metal salt stabilizers, are outstanding heat stabilizers for chlorine-containing thermoplastics, especially for PVC. Particular interest attaches to the combinations of tetrazoles with epoxy plasticizers, for example epoxidized soya bean oil, which constitute a metal-free stabilizer system.

Abstract: Compounds of the formula: ##STR1## wherein R is hydrogen or alkyl (C.sub.1 -C.sub.8), R' is hydrogen, hydroxyl or lower alkoxy (C.sub.1 -C.sub.8); R" is alkyl (C.sub.1 -C.sub.20), alkylene (C.sub.2 -C.sub.12), cycloalkyl, wherein the alicyclic ring contains 5- or 6-carbon atoms, cycloalkylene, wherein the alicyclic ring may contain lower alkyl substituents, alkenyl (C.sub.3 -C.sub.20), arylene or aralkylene; n is an integer from 1 to 4, are useful for stabilizing polyolefin polymer against photo and thermal degradation.