Abstract: Antidegradants for rubber comprising a mixture consisting essentially of 2,2,4-trimethyl-1,2-dihydroquinoline monomer, dimer thereof and more highly polymerized products than the said dimer, the contents of the said quinoline monomer and the said quinoline dimer being less than 5% by weight and 25% by weight or more, respectively. The antidegradants for rubber are very useful for preventing both heat ageing and flex cracking of rubber.

Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the alkaline earth metal salts of halogenated methanesulfonic acids or mixtures thereof, or mixtures of the alkali metal salts and the alkaline earth metal salts.

Abstract: There are provided compositions comprising (a) a polyphenylene ether; (b) a polystyrene resin; (c) a precompounded polymer system comprising an olefinic resin and an elastomeric block copolymer alone, or in further combination with a dispersing agent; and (d) an elastomeric block copolymer resin. The use of (c) and (d) together provides, surprisingly, higher impact strength over the entire composition range of (a) to (b), with lower amounts of (c) and (d), based on the total resinous components of the system, being required.

Abstract: A composition comprising a styrenic resin admixed with sodium tetraborate pentahydrate and a brominated aromatic compound is provided that is no only flame retarded but also is smoke suppressed.

Abstract: Disclosed is a new method of using an ink in an ink jet printer and the ink utilized thereby. It has been found that ethylene glycol is a suitable vehicle, provided an inorganic salt dissolved in the glycol to provide a required level of electrical conductivity is utilized, and in which should be dissolved dyes for coloration.

Abstract: Elastomeric copolymer of vinylidene fluoride and at least one other fluorine-containing monomer containing 28 to 92% by mole of the vinylidene fluoride unit and having an intrinsic viscosity of 0.4 to 1.3 at 35.degree. C. in methyl ethyl ketone, which is prepared by a two-stage polymerization process of vinylidene fluoride monomer and at least one other fluorine-containing monomer wherein monomers are copolymerized in an aqueous medium in the presence of a water-soluble radical polymerization initiator at a first stage to give a first stage-copolymer having an intrinsic viscosity of 0.01 to 3.0 at 35.degree. C.

Abstract: Shaped articles are produced from compositions of sulfur and a particulate inorganic material, at least 10% by weight of the particulate inorganic material being fly ash. The initial compositions are uniform dry blends, and the finished products are formed by converting the sulfur of the composition to molten form and then cooling while, as in casting, the molten material is confined in the desired shape. Use of fly ash provides articles having a hardness more than twice that of sulfur alone and a compressive strength approaching three times that of a typical aged poured concrete.

Abstract: This invention relates to a curable resinous composition which comprises (I) 100 parts by weight of unsaturated alkyd obtained by the condensation reaction of an .alpha., .beta.-unsaturated polycarboxylic acid or its anhydride with polyhydric alcohol or alkylene oxide and (II) 1 - 200 parts by weight of an unsaturated cycloacetal obtained by the condensation reaction of an unsaturated aldehyde with a polyhydric alcohol.

Abstract: Thermosetting moulding material comprising an unsaturated polyester, a copolymerizable vinyl monomer and other additives are disclosed which contain as a shrinkage-reducing additive a copolymer of styrene with 2 to 10% by weight of an unsaturated monocarboxylic acid, and 15 to 40% by weight of a dialkyl ester of an unsaturated dicarboxylic acid. These compositions may be used as casting resins, in dough-moulding and in sheet-moulding to prepare dimensionally stable objects with a smooth surface and homogeneous coloration.

Abstract: A phenol-formaldehyde composition useful as a raw material for the preparation of phenolic resins, which comprises one or more phenols and not more than about 6 moles of formaldehyde per 1 mole of said one or more phenols, and, as optional components, not more than about 7 moles of water and not more than about 7 moles of methanol per 1 mole of said one or more phenols, the composition being obtained by dissolving formaldehyde into the one or more phenols, optionally with water or water plus methanol.

Abstract: A coating composition comprising;A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;R.sup.2 is lower alkylene;R.sup.3 is aliphatic or cycloaliphatic;X is --O-- or --NH--;n is an integer from 2 to 50 inclusive;B. n-vinyl-2-pyrrolidone;C. an acrylic acid ester having a boiling point of at least 200.degree. C at 760 mm Hg.

Abstract: Reaction products of glycidyl (meth)acrylate with half esters containing carbonate groups are components of anaerobically-setting adhesive compositions based on (meth) acrylic esters and organic peroxides.

Abstract: A thermoplastic molding composition comprising a chlorine containing bisphenol polycarbonate and a polyester derived from a cyclohexanedimethanol.

Abstract: Ionically crosslinked polymers which are soluble in a liquid organic medium and which correspond to the general formula: ##STR1## in which: the symbol N.sym. represents a quaternary nitrogen-containing group; the symbol ##STR2## REPRESENTS A MACROMOLECULAR CHAIN CARRYING GROUPS WHICH ARE CAPABLE OF BEING LINKED, VIA A COVALENT BOND, TO -SO.sub.3 .crclbar. groups; the symbol ##STR3## REPRESENTS A MACROMOLECULAR CHAIN CARRYING GROUPS WHICH CAN GIVE RISE TO THE FORMATION OF N.sym. groups, the symbol ##STR4## INDICATING THAT THE N.sym. groups are linked to the macromolecular chain by at least one covalent bond, and the chains ##STR5## CONSIDERED TOGETHER, DO NOT CONTAIN OPPOSITELY CHARGED GROUPS WHICH ARE CAPABLE OF FORMING INTER-CHAIN COVALENT BONDS, THE RATIO N/M IS BETWEEN 0.1 AND 10; AND THE NATURE OF THE UNITS FORMING THE MACROMOLECULAR CHAINS AND THE VALUES OF N AND M BEING SUCH THAT A POLYMER OF FORMULA (I.sub.

Abstract: An oxymethylene polymer of improved melt processability is provided by the addition of about 0.1-5 percent by weight of a low molecular weight copolyether-ester resin. The copolyether-ester consists essentially of long-chain ester units derived from long-chain glycols and dicarboxylic acids and short-chain ester units derived from low molecular weight diols and dicarboxylic acids.

Abstract: A copolymeric reaction product consisting essentially of (A) 60 to 95 percent by weight of a resin consisting essentially of 45 to 72 mole percent SiO.sub.2 units and 28 to 55 mole percent (CH.sub.3).sub.3 SiO.sub.1/2 units, and (B) 5 to 40 percent by weight of a resin consisting essentially of 60 to 100 mole percent RSiO.sub.3/2 units, 0 to 35 mole percent R.sub.2 SiO units and 0 to 5 mole percent R.sub.3 SiO.sub.1/2 units, each R radical being independently selected from the group consisting of the methyl, propyl and phenyl radicals, is disclosed. These siloxane copolymers can be combined with a trimethylsilyl endblocked polydimethylsiloxane fluid and conventional organic thread finishes to obtain thread treating compositions.

Abstract: The impact strength of certain thermoplastic vinylic polymers is improved by polymerizing the corresponding monomers in an emulsion of a diorganosiloxane containing units of the formula HSR'SiR.sub.n O.sub.3-n/2. For example a styrene acrylonitrile copolymer containing 20 percent by weight of a dimethylsiloxane-3-mercaptopropylsiloxane copolymer having 1 mol percent mercaptosiloxane has an Izod notched impact strength of 10.8 foot pounds per inch.