Abstract: Pentaerythritol is treated at a temperature of about 180.degree. to 220.degree. C. with a strongly alkaline acting material, e.g. calcium oxide. The thus treated pentaerythritol serves as a costabilizer e.g., with the salt of a polyvalent metal and a carboxylic acid, for a vinyl chloride resin, e.g. polyvinyl chloride and has outstanding properties as such.

Abstract: This invention relates to a thermoplastic composition based on polyvinyl alcohol, which is adapted to be subjected, as such, to the common methods of shaping in the hot condition used for thermoplastic materials, such as molding and extrusion, for the product of articles, characterized in that it is composed of a substantially dry mixture of said polyvinyl alcohol with at least one or more solid polyhydroxylated monomeric alcohols, which, as such or in admixture with each other, exhibit their main peak melting point, as determined by Differential Thermal Analysis, between 160.degree. C., and 230.degree. C.

Abstract: The subject invention relates to storage stable dispersions comprising certain aromatic polyesters dispersed in certain polyhydroxyl compounds and their process of preparation. The dispersions are useful for the preparation of polymers containing urethane and/or isocyanurate linkages.

Abstract: A polyolefin plastic composition is provided having improved transparency, which comprises:(a) a major portion of a linear, low density polyethylene polymer;(b) a di-acetal of sorbitol and an aromatic aldehyde in an amount sufficient to improve transparency characteristics; and(c) a di-acetal decomposition inhibitor in an amount sufficient to inhibit decomposition of said di-acetal.

Abstract: Poly-2-pyrrolidone polymer compositions having improved melt processability via the capping of at least a portion of the amino and/or carboxy end group of the polymer and the incorporation therewith of certain epoxide organic isocyanate and/or polyol additive compositions. The melt extrusion of such compositions is also disclosed.

Abstract: Secondary stabilizer for vinyl chloride polymers consisting of a solid mixture obtained by melting together pentaerythritol and at least one of the compounds selected from the group consisting of dipentaerythritol, tripentaerythritol, trimethylol propane, neopentyl glycol, trimethylol ethane, anhydroennea heptitol, sorbitol, mannitol, bisphenol A and other organic hydroxy compounds containing at least two hydroxy groups. The stabilizer is characterized in that the mixture has the form of a dispersion of very fine-grained particles in a suitable liquid grinding agent, which dispersion has been obtained by wet grinding said mixture in said grinding agent.

Abstract: Polymer compositions are described that confer an enhanced balance of wet and dry strength properties to a cellulosic substrate while leaving the substrate soft and porous. The compositions comprise a hydrophilic air-curing polymer and a polyol with a carbon to oxygen ratio of less than 3:1, typified by glycerol.

Abstract: The invention herein relates to the preparation of solution polymerizates of acrylic and methacrylic esters. More particularly, this invention relates to a process for the preparation of solution polymerizates of acrylic or methacrylic acid esters of alcohols wherein acrylic or methacrylic monomers are polymerized in a solvent of high-boiling alcohols of from 8 to 40 carbon atoms and 1 to 6 hydroxyl groups, the total batch to be polymerized containing from about 15 to 85 percent by weight of polymerizable substance, based on the weight of the total batch. This invention also relates to a method of using said solution polymerizates to improve the flow properties of lacquers.

Abstract: Extrusion-cast films of high molecular weight, linear, low density ethylene copolymers which inherently have high block and high cling characteristics are compounded with a minor amount of a low molecular weight organic, such as a polyglycol, before being extrusion-cast as a thin film, the low molecular weight organic serving to substantially reduce the block, but retaining high cling characteristics.

Abstract: For the thermoplastic processing of polyvinyl alcohol, the processing temperature must be below the decomposition temperature of the polyvinyl alcohol; this is attained by incorporating plasticizers. For preparing a plasticizer-containing granular polyvinyl alcohol wherein the plasticizer is homogeneously distributed, there is used as starting material a granular polyvinyl alcohol consisting substantially of particles having a definite diameter. The plasticizer is incorporated in the presence of a small amount of water insufficient to dissolve the polyvinyl alcohol, and the temperature is adjusted in a definite manner during the mixing operation. Simultaneous presence of fine particles of a high molecular weight organic compound soluble or dispersible in water is advantageous. The plasticizer-containing granular polyvinyl alcohol is suitable for the manufacture of any shaped articles, especially films and sheets.