Abstract: This invention relates to a new process for the production of polyamide imides.

Abstract: The use of a cyclic compound containing a ##STR1## group, i.e., methone, has been found to allow a poor acrylamide or acrylic acid or 2-acrylamide-2-methylpropane sulfonic acid and its salts monomer to be polymerized to a polymer having improved performance characteristics and/or improved rates of polymerization. Optionally, urea is added with the methone.

Abstract: The rust converter and rust preventive contains(a) an aqueous dispersion, emulsion or solution of at least one polymeric binder and(b) at least one trihydroxybenzene.(c) It has an essentially neutral reaction.

Abstract: This invention relates to a new process for the production of polyamide imides.

Abstract: A process for the preparation of high molecular weight polyphenylene ethers from alkyl-substituted monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a catalyst complex of a copper salt and an organic amine, subsequent stopping of the reaction and removal of the metal component of the catalyst by addition of chelating and/or salt-forming agents, wherein the polymer solution is treated with a compound having the general structure: ##STR1## where R.sup.2 and R.sup.3 can be identical or different and each is OH, NH.sub.2, NHR.sup.5, where R.sup.5 is alkyl or cycloalkyl, or SH, and where R.sup.1 and R.sup.4 are identical or different, being hydrogen, alkyl, cycloalkyl, aryl, carbonyl, carboxyl, carboxyalkyl or nitrile, and can be linked to form a ring, advantageously in an amount of from 0.1 to 100 mmoles and advantageously in from 1 to 20% strength aqueous solutions.

Abstract: A polyester, a polyester/polyamide or a polyester/polyamide/polyimide polymers are prepared from (a) a diaryl terephthalate or diaryl isophthalate, and (b) an aromatic polyol or of (a) and a mixture of (b), and an aromatic diamine, or of (a), (b), (c), and (d) a triaryl mellitate, or a copolycarbonate of any of the foregoing including units derived from (e) a diaryl carbonate. The resulting polyester, polyamide, polyester/polyamide or polyester/polyamide/polyimide polymers are adapted for use as an insulating coating on an electrical conductor.

Abstract: An aqueous emulsion of a solid, water insoluble or limited water soluble organic peroxide is provided that has improved stability, dilutability and safety but still having an average particle size of 1.5 microns or less and a good particle size distribution. The emulsion has from about 10 weight percent of the emulsion of a solid peroxide selected from the group of hydroperoxides .alpha., -oxy and .alpha.-peroxy hydroperoxides, dialkyl peroxides, aldehyde and ketone peroxides, diacyl peroxides, peroxyesters, peroxy acids, peroxydicarbonates, monoperoxycarbonates and perketals.The emulsion also has a hydrocarbon solvent having a high kauri-butanol number if the organic peroxide has a substantial amount of aromaticity and a low kauri-butanol number if the organic peroxide has little or no aromaticity and one or more nonioic emulsifiers and at least about 20 weight percent of water.

Abstract: A non-volatile, anti-gel compound having a chain of at least about 5 repeat units of an alkylene oxide and which is soluble in olefin polymers, and an inorganic anti-block agent having a substantially neutral pH are added to a film grade transition metal catalyzed resin containing halide residues such as Ziegler-Natta catalyzed olefin polymer compositions to prevent: (1) gel streaking/pinstriping during film extrusion processes; (2) blocking of the extruded film; and (3) discoloration of the extruded film upon aging. The anti-gel compound has a molecular weight between about 200 and about 4,000,000 Daltons.

Abstract: Compounds of the formula I, II, III or IV ##STR1## wherein X is halogen, OH, --OR.sup.1, --OOCR.sup.2, --OOC--R.sup.4 --COOR.sup.3 or --N(R.sup.5)(R.sup.6), or the two X groups together form a group --O--R.sup.9 --O-- or --OOC--R.sup.9 --COO--, Y has one of the meanings given for X, or it is --NHR.sup.5, --NHNH.sub.2 or --NHNH-phenyl, Z has one of the meanings given for X, or is --SR, and R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9 and R' are organic radicals having the meanings defined hereinbelow, are thermal stabilizers for chlorine-containing thermoplastics particularly for PVC. Their effect can be further intensified by the addition of co-stabilizers.

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.