Abstract: A method for preparing poly(imide-amide)s comprising reacting carbon monoxide, an aromatic or heteroaromatic diamine, and an aromatic or heteroaromatic di(trifluoromethane sulfonate), in the presence of solvent and a catalyst One of the aromatic reactants has a nucleus including a phthalimide ring system. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.

Abstract: A process for preparing polyketones (alternating polymers of carbon monoxide and one or more olefins) is provided. The process is characterized by using the nickel catalyst obtained by reacting a nickel compound, e.g. nickel acetate, nickel carbonyl or bis(cyclooctadiene) nickel(O), with a thiol-substituted carboxylic acid of formula HS--R--CO.sub.2 H (R is a divalent organic radical). Preferred thiol-substituted carboxylic acids include 2-mercaptobenzoic acid, 4-mercaptobenzoic acid, 2 mercaptonicotinic acid and compounds of formula HS--CHR.sup.2 --CO.sub.2 H where R.sup.2 is selected from hydrogen, --CH.sub.3 and --CH.sub.2 CO.sub.2 H.

Abstract: A process for the preparation of aromatic polyamides comprises reacting carbon monoxide and an aromatic iodoamine characterized by having at least one iodine atom covalently bonded to an aromatic ring and at least one amino group. The process is conducted in the presence of a solvent, a catalyst and a base at a pressure greater than about 1 kg/cm.sup.2.

Abstract: A process for the purification of waste of thermoplastic resins containing at least one member selected from among aromatic polycarbonates, aromatic polyester carbonates and aromatic polyesters and at least one of aluminum, lacquers and dyes which waste accumulates in the production of optical moldings is disclosed. The process which entails size reduction of the waste, chemical wash and filtering steps yields purified resins suitable for thermoplastic processing.

Abstract: A novel method for purifying a polyphenylene ether is disclosed. The method is characterized in that in separating a polyphenylene ether from a reaction product obtained by oxidative polymerization of a 2,6-di-substituted-phenol by means of a precipitation polymerization method in which a polymer is precipitated in the presence of a catalyst comprising a combination of a copper ion, a halide ion and not less than one type of amines and purifying a polyphenylene ether, wherein an amino carboxylic acid derivative is added to the reaction product and then a polymer is washed with a poor solvent for the polyphenylene ether.

Abstract: A polyamide comprising a recurring unit of the formula (I), ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 is independently a hydrogen atom, a halogen atom, a hydroxyl group, or a group of a carbon skeleton which may contain a hetero atom or a halogen atom, and A.sup.1 is a divalent hydrocarbon group; and a process for the production of a polyamide comprising the recurring unit of the formula (I), which comprises subjecting to a polycondensation reaction a dicarboxylic acid comprising an alicyclic dicarboxylic acid of the formula (a)-1, ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as defined in the formula (I), and a diamine of the formula (b)-1,H.sub.2 N-A.sup.1 -NH.sub.2 (b)-1wherein A.sup.1 is as defined in the formula (I).

Abstract: The present invention relates to thermoplastic polyamide resins for use in relief printing which are prepared by condensation of distilled and/or hydrogenated dimeric fatty acids, a mixture of oleic acid and isostearic acid, a substantially equivalent amount of ethylenediamine, and optionally co-diamines.

Abstract: Cyclic polycarbonate oligomers are polymerized to linear polycarbonates by the action of a salt prepared by the reaction of a triarylphosphine or triaryl phosphite with an organic disulfide, preferably an aryl disulfide. The reactants which form the salt may be incorporated in the cyclic polycarbonate composition, and interreact when the composition is heated to form the active initiating species.

Abstract: A process for preparation of a random copolycarbonate from an ortho-substituted dihydric phenol and a non-ortho-substituted dihydric phenol.

Abstract: Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable properties.

Abstract: A process for preparing halogenated polycarbonate wherein the total amount of base, the end pH of the aqueous phase, and the amount of coupling catalyst employed in the reaction are controlled to selected levels.

Abstract: Functionalized polyphenylene ethers made with graftable orthoester moieties, preferably the orthoester is 4-acryloyloxymethyl-2-methoxy-2-methyl-1,3-dioxolane monomer. The preferred method for grafting orthoester functionality onto polyphenylene ethers is by melt grafting. Once formed, these Polyphenylene ether graft orthoesters (PPE-g-OE) are useful as compatibilizers in blends of PPE with polyesters.

Abstract: The invention relates to a method for the continuous preparation of carbonate oligomers by boundary face oligomerization of aromatic dihydroxy compounds with phosgene while adding base, in which the reaction is carried out in a loop-like reactor system in the absence of chain stopper and while using less than 200 ppm of catalyst related to the organic solvent using at least one static mixer and plug folw, optionally in combination with a stirred tank reactor.

Abstract: A method for preparing polyamide comprising reacting carbon monoxide and the reactant pair ##STR1## wherein --Ar.sup.1 -- and --Ar.sup.2 -- are each independently selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 30, in the presence of solvent and a catalyst. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.

Abstract: The invention relates to a method of preparing aromatic polycarbonates by catalytic interface polymerization of at least one bivalent phenol and a carbonyl halide in the presence of a polycondensation catalyst, which method is characterized in that the conversion is carried out in a two-phase system with continuous dosing of the carbonyl halide, which two-phase system is based on water and an organic solvent, in which the quantity of organic solvent at the beginning of the polycondensation lies between 10% and 75% of the quantity of organic solvent which is required at the polymerization temperature for dissolving the quantity of polycarbonate which may be formed from the quantity of bivalent phenol which is present at the beginning of the polycondensation, in that after dosing at least 20% of the carbonyl halide a remaining quantity of organic solvent is added which is at least sufficient to keep the formed polycarbonate in solution.

Abstract: Novel polymers containing alternating units of carbon monoxide and units derived from non-conjugated diolefinic hydrocarbon are produced by contacting the carbon monoxide and non-conjugated diolefinic hydrocarbon under polymerization conditions in the presence of a catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus having only aliphatic monovalent phosphorus substituents.

Abstract: Linear alternating polyketone polymers of carbon monoxide and one or more olefinically unsaturated compounds are prepared by contacting the monomers at elevated temperature and pressure with a catalyst suitable for this purpose, the polymer preparation being carried out as a gas phase polymerization and water being introduced into the polymerization reactor prior to the polymerization.

Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon comprises contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a reaction diluent and a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bis(diethylphosphino)alkane.

Abstract: Phosphazene-containing amines having at least one amine or substituted amine moiety reactive with nitrile groups of the phthalonitrile monomers or oligomeric resins are useful curing agents for phthalonitriles. Typically, the phosphazene-containing amines useful as curing agents in the present invention have the formula: ##STR1## wherein each of X.sub.1-6 is a hydrogen, an unsubstituted amine group, or an amine group substituted with C.sub.1 -C.sub.12 alkyl groups or aromatic groups, at least one of X.sub.1-6 includes an amine group, and each of R'.sub.1-6 is an alkyl, aromatic, or alkyl-substituted aromatic moiety, or a linear polymer of the phosphazene-based amine monomer. The curing agents enhance the speed of cure and also add flame retardancy to the cured polymers.

Abstract: Branched polycarbonates are prepared by the use as a branching agent, in an interfacial polycarbonate formation reaction, of a 2',4,4"-m-terphenyltriol, preferably the unsubstituted compound. Said branched polycarbonates have properties which are advantageous for blow molding and the like.