Abstract: Laminated skin-foamed core sandwich structures characterized by an excellent stiffness and load-bearing capability to weight ratio are prepared by heating in a closed mold a sandwich construction that comprises skin layers that comprise a thermoplastic polymer having a glass transition temperature in the range of 75.degree. to 85.degree. C. and reinforcing fibers and a core that comprises a thermoplastic polymer that is compatible with the polymer in the skin layers and that has a glass transition temperature that is 10.degree. to 20.degree. C. lower than that of the polymer in the skin layers and a blowing agent at a temperature sufficient to fuse and expand the core and to fuse the skin layers and bond them to the expanded core.

Abstract: Vinyl chloride polymers are prepared by polymerizing a monomer component that comprises vinyl chloride in an aqueous medium in the presence of a free radical-generating polymerization initiator and 0.01% to 2% by weight, based on the weight of the monomer component, of a chain-transfer agent that is a mercapto organic compound having at least one beta-ether linkage. The process can be used to produce low molecular weight vinyl chloride polymers.

Abstract: The polymerization of a monomer component that comprises vinyl chloride in an aqueous medium in the presence of a free radical generating polymerization initiator is terminated by introducing into the polymerization reaction mixture when from 70% to 95% of the monomer component has been polymerized from 0.01% to 0.10% by weight, based on the weight of the monomer component, of a chain-terminating agent that is an alkyl-substituted trisphenol, such as 1,1,3-tris(2-methyl-4-hydroxy-5-tert.butylphenyl)butane.

Abstract: Conductive molding compositions comprise a vinyl chloride-vinyl ether copolymer that contains as comonomer a vinyl ether having the structural formulaCH.sub.2 .dbd.CHORwherein R represents an alkyl, haloalkyl, aryl, or haloaryl radical having 1 to 18 carbon atoms, conductive carbon black particles, a stabilizer component, a lubricant component, and a plasticizer and processing aid component.

Abstract: Stable aqueous dispersions of free radical-generating polymerization initiators that are solid at temperatures above 0.degree. C. are prepared safely and efficiently by homogenizing a suspension of the initiator in an aqueous system that contains small amounts of a suspending agent and a wetting agent.

Abstract: Surface-coating compositions that have improved resistance to attack by fungi and other microorganisms contain 0.1% to 3% by weight of a biocidal compound having the structural formula ##STR1## wherein each R represents an alkyl, aryl, aralkyl, alkaryl, or alicyclic group having 1 to 10 carbon atoms; X represents hydrogen, chlorine, bromine, nitro, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; M represents an environmentally-acceptable metal having a valence of 2, 3, or 4; m is 1 or 2; and n is the valence of the metal M.

Abstract: An aqueous dispersion of a free radical-generating polymerization initiator that is a shelf-stable liquid at temperatures at which the initiator can be stored safely comprises 10% to 50% by weight of a liquid free radical-generating polymerization initiator, 0.8% to 3% by weight of a suspending agent, 0.1% to 1.0% by weight of a wetting agent, and 0 to 50% by weight of an antifreeze additive.

Abstract: Heat-stable vinyl halide resin compositions comprise (a) a vinyl halide resin prepared by the polymerization of a vinyl halide-containing monomer component in an aqueous medium in the presence of a free radical generating polymerization initiator and a chain-terminating agent that is an ortho-dihydric phenol and (b) a liquid antimony stabilizer composition.

Abstract: In processes in which liquid sorbents that are solutions in an aromatic hydrocarbon or halogenated aromatic hydrocarbon of a bimetallic salt complex having the generic formula M.sub.I M.sub.II X.sub.n.Aromatic, wherein M.sub.I is a Group I-B metal, M.sub.II is a Group III-A metal, X is halogen, n is the sum of the valences of M.sub.I and M.sub.II, and Aromatic is a monocyclic aromatic hydrocarbon or halogenated aromatic hydrocarbon are used to separate complexible ligands from a gas feedstream that comprises an olefin having 2 or 3 carbon atoms, alkylation of the aromatic hydrocarbon or halogenated aromatic hydrocarbon is inhibited by incorporating in the liquid sorbent from 8.5 mole percent to 30 mole percent, based on the Group I-B metal in the liquid sorbent, of an amine-aluminum chloride adduct, such as ammonia-aluminum chloride adduct or pyridine-aluminum chloride adduct.

Abstract: Liquid, solvent-free, non-toxic stabilizers for vinyl chloride resin compositions comprise a major amount of a liquid epoxy compound and minor amounts of magnesium, zinc, and calcium salts of alkanoic acids having 6 to 26 carbon atoms, an organosulfur compound, and an organic phosphite. Vinyl chloride resin compositions that contain these stabilizers are characterized by excellent heat and light stability, color, and clarity.

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: Oil-soluble metal salts are produced by the reaction of a polyvalent metal, such as nickel, with an organic monocarboxylic acid in the presence of an ammonium salt catalyst, water, oxygen, and an inert, water-immiscible organic solvent.

Abstract: Shelf-stable liquid antimony stabilizer compositions for vinyl halide resin compositions comprise a liquid antimony organic sulfur- and/or oxygen-containing compound, such as antimony tris-(isooctyl thioglycolate), and a stabilizing amount of an acidic organic compound that may be a mercaptoacid ester, mercaptan, mercaptoacid, mercaptoalcohol, monocarboxylic acid, or a mixture thereof.

Abstract: Drier systems for surface-coating compositions that contain oxidizable, organic, film-forming resinous vehicles and that air dry in 24 hours or less at temperatures not higher than 50.degree. F. and at relative humidities above 50% comprise metal salt solutions in an inert solvent that contain an active drier metal, such as cobalt, and an auxiliary drier metal that comprises bismuth.

Abstract: Accelerator systems that comprise cobalt salts of monocarboxylic acids having 6 to 12 carbon atoms and potassium salts of monocarboxylic acids having 1 to 5 carbon atoms are used to accelerate the curing of peroxide-catalyzed unsaturated polyester resin compositions.

Abstract: The polymerization of a monomer component that comprises vinyl chloride in an aqueous medium in the presence of a free radical generating polymerization initiator is terminated by introducing into the polymerization reaction mixture when from 70% to 95% of the monomer component has been polymerized from 0.01% to 0.10% by weight, based on the weight of the monomer component, of a chain-terminating agent that is a dialkylhydroxyphenylalkanoic acid ester of a neopentyl polyhydric alcohol, such as pentaerythritol tetrakis-[3-(3,5-di-tert.butyl-4-hydroxyphenyl)propionate].

Abstract: In processes in which liquid sorbents that are solutions in an aromatic hydrocarbon or halogenated aromatic hydrocarbon of a bimetallic salt complex having the generic formula M.sub.I M.sub.II X.sub.n.Aromatic, wherein M.sub.I is a Group I-B metal, M.sub.II is a Group III-A metal, X is halogen, n is the sum of the valences of M.sub.I and M.sub.II, and Aromatic is a monocyclic aromatic hydrocarbon or halogenated aromatic hydrocarbon are used to separate complexible ligands from a gas feedstream that comprises an olefin having 2 or 3 carbon atoms, alkylation of the aromatic hydrocarbon or halogenated aromatic hydrocarbon is inhibited by incorporating in the liquid sorbent from 8.5 mole percent to 30 mole percent, based on the Group I-B metal in the liquid sorbent, of an amine-aluminum chloride adduct, such as ammonia-aluminum chloride adduct or pyridine-aluminum chloride adduct.

Abstract: Partial (2,2,4-trimethylpentane-1,3-diol monoisobutyrate) esters of polycarboxylic acids and water-soluble salts of these esters are useful in the manufacture of vinyl halide resins that have excellent optical properties.

Abstract: Water-borne surface-coating compositions comprise an oxidizable organic film-forming resinous vehicle and a drier system that comprises a cobalt salt-potassium salt complex and that has a total metal content of 5% to 14% by weight. The drier system may also contain other metal salts, e.g., calcium salts and zirconium salts of monocarboxylic acids.

Abstract: Low molecular weight addition copolymers, of (1) (meth)acrylic acid esters of alcohols such as methanol and butanol with (2) esters of alcohols such as N-(.beta.-hydroxyethyl)oxazolidine and unsaturated acids such as a (meth)acrylic acid, and (3) optional .alpha.,.beta.-ethylenically unsaturated monomers such as a (meth)acrylic acid, are found to be exceptional dispersants for inorganic and organic pigments and colorants which are insoluble in organic solvents, for lacquers, and are compatible with practically all types of lacquer resins such as vinyls, nitrocellulose, and alkyds, and with many other types of lacquer film-forming materials. Usually, when small amounts of unsaturated carboxylic acids, or other polar monomers and combinations thereof, are incorporated in the polymers, they become improved pigment dispersants. Such pigment dispersions, unexpectedly, can be let down with many types of synthetic resins and used by air-drying or baking the coated articles.