Abstract: Mannich bases of hindered aromatic alcohols are incorporated in polymeric norbornene materials to improve their resistance to oxidation.

Abstract: A wet process mat binder comprising a phenolic resin, urea, melamine, starch and polyvinyl alcohol is disclosed. The pH of the formula is maintained at about 5.5.

Abstract: A process for the manufacture of polyalkylenepolyamines by reacting a primary or secondary amine with a compound of the formula ##STR1## where X is --Cl, --Br, or --OSO.sub.3 H and R.sup.1 and R.sup.2 are H or saturated alkyl of 1 to 4 carbon atoms, and with at least the stoichiometric amount, based on the compound of the formula I, of an aqueous solution, of from 15 to 45 percent strength, of an alkali metal hydroxide or alkaline earth metal hydroxide, at from 60.degree. to 200.degree. C., cooling the reaction mixture to a temperature at which 2 aqueous phases form, and separating off the upper phase, containing polyalkylenepolyamnines. The rate of reaction can be increased by adding catalytic amounts of compounds which initiate the polymerization of alkyleneimines.

Abstract: Thermal stabilization of halogeno-vinyl resins is achieved by the incorporation of one or more tetramercapto-tin compounds. The stabilization is improved by the addition of a crown compound, i.e. a cyclic polyether. The proportion of the crown compound is in general 10 to 200 parts by weight, preferably 25 to 100 parts, per 100 parts by weight of tin tetramercaptide.

Abstract: A water absorbent composition and method of preparing the same having improved wicking characteristics and comprising a combination of hydrolyzed starch polyacrylonitrile graft copolymer and a source of formaldehyde.

Abstract: Compounds of the formula ##STR1## wherein the symbols R.sub.1, R.sub.2, R.sub.3, m, X, n, Y, q, r and Z have the meanings given in Claim 1. The divalent radical Y can optionally contain a group of the formula ##STR2## wherein R.sub.9 and R.sub.10 have the meanings given in Claim 1. The compounds according to the invention are suitable as antioxidant-stabilizers in organic materials, and impart to lubricants, in addition to having therein a good anti-oxidation and anti-corrosion action, excellent extreme pressure and antiwear properties.

Abstract: Stabilizer compositions are provided to increase the resistance of a synthetic resin to deterioration upon heating, comprising in combination (A) a thiodipropionic acid ester of a dihydric alcohol having 2 to 20 carbon atoms and an alcohol or carboxylic acid chain terminator having 1 to 21 carbon atoms, and (B) a 700 to about 10,000 molecular weight ester of a polyhydric phenol with carbonic acid or with carbonic acid and another acid which can be an aliphatic dicarboxylic acid, phosphorous acid, phosphoric acid, boric acid, or an organophosphonic acid.Synthetic resins that can be stabilized with composition of the invention include polymers of alpha-olefins having 2 to 6 carbon atoms, vinyl chloride polymers, acrylonitrile-butadiene-styrene polymers, and terephthalic acid ester polymers.

Abstract: This invention relates to particular polyolefin compositions which contain, as stabilizers against UV-light radiations, open-chain amine compounds which are hindered in the alpha-position by alkyl radicals, said amine compounds corresponding to the following general formula: ##STR1## wherein R', R", R"', R.sup.IV, R.sup.V and R.sup.VI which can be equal or different, are radicals of aliphatic hydrocarbons with a number of C-atoms variable from 1 to 20, or can be hydrogen atoms, n is an integer variable from 2 to 12, and n' is an integer comprised between 1 and 15.

Abstract: A mixture of polydiorganosiloxane, aluminum hydrate, and gamma-type iron sesquioxide or ferroferric oxide can be cured to provide a silicone rubber with improved self-extinguishing properties and heat stability.

Abstract: Novel compositions comprising polymerization products of polyimide derivatives having terminal acetylenic amide groups and processes for their preparation are disclosed herein. These new compositions are primarily polymers of derivatives of anhydride-terminated aromatic polyimides from which these derivatives are prepared by amidation to provide acetylenic amide groups having terminal --C.tbd.CH groups as hemi-amic acid groups or their derivatives. These derivative compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures and in accordance with the practice of this invention to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are polymers from monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides.

Abstract: The title compounds are prepared by reacting alkylated 1,1'-biphenyl-2,2'-diol or alkylated 2,2'-alkylidene-bis-phenol with phosphorus trichloride in an organic solvent and then reacting the intermediate phosphorochlorodite with an alkanolamine. Said phosphites are useful as stabilizers of organic polymers and lubricating oils, especially as processing stabilizers for polyolefins, elastomers, polyesters and polycarbonates.

Abstract: A resin composition having an excellent fire retarding effect is provided which comprises (1) a polycarbonate and (2) as a fire retardant, at least one member of the group consisting of (A) a metal salt of a sulfuric ester of an alcohol, (B) an ether derived from an alkyl alcohol and a phenol and having a metal sulfonate group bonded to the carbon atom of the alkyl group and (C) a polycarbonate having at least one alkali metal sulfonate group bonded to the terminals through alkyl. Addition of a mixture of the component (A) and at least one specified halogen-containing organic compound as the fire retardant to the polycarbonate (1) affords a resin composition having a greater fire retardant effect.

Abstract: Compositions which are effective in stabilizing polymers against the deteriorative effects of heat are provided comprising (1) an organic tin compound or mixture of organic tin compounds, (2) an organic compound having an aromatic ring which is substituted with a hydroxyl (--OH) group and a mercapto (--SH) group ortho to each other, and, optionally, (3) an organotin mercaptide or mixture of organotin mercaptides. Also provided are polymer compositions containing said stabilizers and articles of manufacture made from said stabilized polymer compositions.

Abstract: Compositions which are effective in stabilizing polymers against the deteriorative effects of heat are provided comprising (1) an organic tin compound or mixture of organic tin compounds and (2) an organic compound or mixture of organic compounds having an aromatic ring which is substituted with hydroxy (--OH) and mercapto (--SH) groups ortho to each other. Also provided are polymer compositions containing said stabilizers and articles of manufacture made from said stabilized polymer compositions.

Abstract: Reaction products are prepared from metal oxides and salts and phosphorus compounds containing trivalent phosphorus. The reaction products are useful as flame retardants and smoke suppressants.

Abstract: There are provided self-extinguishing compositions comprising, for each 100 parts of a polyolefin as such or containing inert fillers and/or other additives, from 5 to 30 parts of an ammonium or amine phosphate, from 3 to 20 parts of one or more nitrogen organic compound which, upon heating in the presence of the ammonium or amine phosphate, decompose to form a non-dripping carbonaceous mass, the nitrogen-containing compounds being selected from among(a) reaction products of aliphatic or aromatic diisocyanates or triisocyanates and organic compounds having reactive hydrogen atoms;(b) a mixture of (a) and/or an aldehyde/amine or aldehyde/urea reaction product with a polyamide; and(c) a mixture of an amine with a polyamide.The foregoing compositions provide acceptable levels of self-extinguishing properties without being corrosive or emitting toxic smokes or gases in the proximity of an open flame.

Abstract: A resin composition which does not substantially corrode molds, said composition being obtained by blending(I) 100 parts by weight of a resin composition composed of 5 to 80% by weight of (A) an acrylonitrile-butadiene-styrene copolymer resin or a methacrylic ester-butadiene-styrene copolymer resin and 95 to 20% by weight of (B) a vinyl chloride resin obtained by polymerizing vinyl chloride or a monomeric mixture composed mainly of vinyl chloride in the presence of a cycloolefin compound, with(II) 0.5 to 15 parts by weight of (C) a lead-type stabilizer comprising an inorganic acid salt of lead and an organic acid salt of lead in a weight ratio of from 1:10 to 15:1 or (D) a tin-type stabilizer comprising an alkyltin maleate and an alkyltin mercaptide in a weight ratio of from 1:10 to 15:1.

Abstract: There is disclosed polyphenolic mercaptophenol type antioxidants, a method of preparing the antioxidants and to polymer compositions containing such polyphenolic mercaptophenol type antioxidants. In particular, polyphenolic antioxidants such as 2-(2-hydroxy-3-tertiary-butyl-5-methylbenzyl)-4-methyl-6-tertiary butyl phenyl 3-(4-hydroxyphenylthio)propionate.

Abstract: Compositions of oxidizable organic materials having stabilizing amounts of polymeric monohydroxybenzenoid hydroquinoid antioxidants of from about 500 to about 10,000 molecular weight, and the said polymers which are the reaction products of an alpha, alpha' alkyl aromatic compound containing a benzenoid ring, a hydroquinone compound and a monohydroxy benzenoid compound.

Abstract: Highly fire resistant composites or laminates particularly applicable as structural components in aircraft, e.g. in the engine nacelle, as part of the acoustic panel-fire wall structure, and capable of withstanding a 2,000.degree. F. flame temperature, comprising incorporating an additive in the form of an ammonium salt, or an amine salt, of a phosphonic acid or a phosphinic acid, into a resin, e.g., a polyimide or an epoxy resin, such additive being soluble in the resin. The resulting resin containing the additive, e.g., the ammonium, or amine, salt of phenyl phosphonic or phenyl phosphinic acid, is then applied to or impregnated into a substrate such as glass fiber cloth or graphite fiber, to form a composite structure which is then cured. The resulting cured composite when subjected to high temperatures of the order of, e.g., a 2,000.degree. F.