Abstract: A polyarylamine polymer represented by the following formula: ##STR1## wherein: n is between about 5 and about 5,000p is between about 5 and about 5,000X' and X" are independently selected from a group having bifunctional linkages, andQ is a divalent group derived from certain hydroxy terminated arylamine reactants.

Abstract: Novel amino acid-derived polycarbonates and amino acid-derived diphenol compound starting materials from which the polycarbonates are polymerized. Polymer blends of the amino acid-derived polycarbonates with polyiminocarbonates prepared from identical amino acid-derived diphenol starting materials.

Abstract: Disclosed herein is a process for producing an azo group-containing polymer comprising polycondensing a compound having an azo group in the main molecular chain and an alcoholic hydroxyl group, phenolic hydroxyl group, imino group or amino group at both ends thereof with a dicarboxylic acid chloride or a carbonate precursor except the polycondensation of a compound having an azo group in the main molecular chain and an alcoholic hydroxyl group at both ends thereof with a carbonate precursor.

Abstract: The invention relates to novel aryl carbonate cyanoaryl ether copolymers.

Abstract: An aqueous coating composition for glass fibers is provided which contains a polycarbonate precursor material and a water soluble film former or binder. The resulting coated glass fibers have excellent flexibilty with little or no powdering of the coating composition off the fibers.

Abstract: High molecular weight, thermoplastic aromatic polycarbonate compositions exhibiting improved oxygen barrier properties are provided which comprise structural units derived from a diester bisphenol or a cyano-substituted bisphenol, or an aromatic dihydric phenol in admixture with either of the foregoing bisphenol compounds. Novel cyano-substituted bisphenol monomers are also provided.

Abstract: Flame-resistant thermoplastic branched polycarbonates of high molecular weight are prepared from:(1) a carbonate precursor;(2) at least one dihydroxyaromatic compound of formula: ##STR1## where: R is a single bond, or a substituted or non-substituted linear or branched C.sub.1 -C.sub.5 alkylene radical, or a group chosen from O, S, SO.sub.2 and CO;X and Y, which may be the same or different, are H or CH.sub.3 ;m and n, which may be the same or different, are whole numbers from 1 to 4;(3) at last one halogenated pyrimidine compound of formula: ##STR2## where: R.sub.2, R.sub.3, R.sub.4, which may be the same or different, are chlorine or bromine or hydrogen, on condition that at least one is chlorine or bromine;R.sub.1 is chlorine or bromine, or a radical of formula: ##STR3## where Z is NH or S or O; (4) at least one polyfunctional organic compound as branching agent, characterized by possessing at least three equal or different groups chosen from the groups OH, COOH, COCl and SO.sub.2 Cl.

Abstract: Novel cyclic polycarbonate oligomers of relatively high glass transition temperatures consist essentially of carbonyl moieties alternating in a cyclic chain with moieties of a 1,6-diaza [4.4] spirodilactam having an oxyaryl-containing substituent on each ring nitrogen atom and, optionally, moieties of a di(oxyphenyl) compound.

Abstract: Bisphenols containing free-radical generating groups, such as bissilylpinacolate groups, are provided. These bisphenols can be used to make free-radical generating polycarbonate macroinitiators having thermally labile groups which can be heated with vinyl monomers, such as styrene to make polycarbonate block copolymers.

Abstract: Blocked amine terminated polycarbonate is provided which can be used to form anhydride terminated polycarbonates, or copolymers with various functionalized organic polymers. A blocked amino phenol, such as N-t-butoxycarbonyl tyramine can be used as a chain stopper under interfacial conditions to chain stop polycarbonate. The t-butoxycarbonyl can be removed by melt processing the polycarbonate to yield an amine end group which can be reacted with other polymers or with an organic dianhydride to form anhydride terminated polycarbonate. The anhydride terminated polycarbonates can be used to form copolymers with amine terminated polyamides.

Abstract: Flame-resistant thermoplastic branched polycarbonates of high molecular weight are prepared from:(1) a carbonate precursor;(2) at least one dihydroxyaromatic compound of formula: ##STR1## where: R is a single bond, or a substituted or non-substituted linear or branched C.sub.1 -C.sub.5 alkylene radical, or a group chosen from O, S, SO.sub.2 and CO;X and Y, which may be the same or different, are H or CH.sub.3 ;m and n, which may be the same or different, are whole numbers from 1 to 4;(3) at least one halogenated carbonyl compound of formula: ##STR2## where: Z is a group chosen from O, S, and NH;R.sub.1 and R.sub.2, which may be the same or different, are chlorine or bromine;R is hydrogen or chlorine or bromine or a C.sub.1 -C.sub.3 alkyl radical;p is zero or 1 or 2.

Abstract: Flame-resistant thermoplastic branched polycarbonates of high molecular weight are prepared from:(1) a carbonate precursor;(2) at least one dihydroxyaromatic compound of formula: ##STR1## where: R is a single bond, or a substituted or non-substituted linear or branched C.sub.1 -C.sub.5 alkylene radical, or a group chosen from O, S, SO.sub.2 and CO;X and Y, which may be the same or different, are H or CH.sub.3 ;m and n, which may be the same or different, are whole numbers from 1 to 4;(3) at least one halogenated triphenolbenzamido compound of formula: ##STR2## where: Z is a group chosen from CO and SO.sub.2 ;R.sub.1 is chlorine or brominep is 1 or 2.

Abstract: Thermoplastic branched polycarbonates of high molecular weight and which possess flame-resistant (self-extinguishing) properties are provided wherein said polycarbonates contain in addition to carbonate units, units derived from a dihydroxyaromatic compound, units derived from a halogenated triphenyl compound and units derived from a polyfunctional organic branching agent.

Abstract: Triazine compounds are prepared by the reaction of a bisphenol or a hydroxy-terminated polycarbonate with a chlorocyanurate containing epoxy and/or aromatic substituents. The compounds derived from bisphenols or protected bisphenols may be converted to polycarbonates, which form copolymers with other polymers containing acid or amine groups or derivatives thereof.

Abstract: Novel polycarbonate polymers comprise regular, alternating units of (a) a 1,6-diaza [4.4] spirodilactam having oxyaryl substituents on each spiro ring nitrogen atom and (b) a di(oxyphenyl) compound, the units being separated by carbonyl groups. The regular, alternating polycarbonate polymers exhibit improved hydrolytic stability.

Abstract: An arylamine polymer composed of recurring units represented by the formula: ##STR1##

Abstract: A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of the N,N-bis(biarylyl)aniline charge transport polymers of the formula ##STR1## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are alkyl, aryl, alkoxy, aryloxy, or halogen; x and y are mole fractions wherein x is greater than 0 and the sum of x and y is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of monomer units.

Abstract: Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: Oligomeric carbonate dihydroxyaromatic-based chainstoppers are disclosed. One example of this type of chainstopper is a bisphenol A bischloroformate oligomer monocapped with phenol. These chainstoppers may be prepared by phosgenating a dihydroxyaromatic compound to terminate one or both of the terminal oxygen atoms with chlorocarbonyl groups, followed by reaction of the chlorocarbonyl-terminated material with a phenolic-type compound in the presence of an amine catalyst. The chainstoppers of the present invention are very useful in accurately controlling the molecular weight of polycarbonates formed by various processes, while also preventing the formation of undesirable by-products, such as diarylcarbonates.

Abstract: Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: A polymeric arylamine represented by repeating units having the formula: ##STR1## wherein: n is between about 5 and about 5,000,Z is selected from certain specified aromatic and fused ring groups,m is 0 or 1,Ar' is selected from certain specified aromatic groups, andAr is selected from certain specified aromatic groups.

Abstract: Novel polycarbonate polymers of relatively high glass transition temperatures comprise carbonyl moieties alternating with moieties of a 1,6-diaza [4.4] spirodilactam having an oxyaryl-containing substituents on each ring nitrogen atom and, optionally, moieties of di(oxyphenyl)alkane.

Abstract: Branched, soluble, high-molecular-weight, thermoplastic polycarbonates having improved properties, and, in particular, suitable to the fabrication by blow-moulding, characterized by the presence in their structure of units deriving from the use in the synthesis of tris(4'-hydroxyaryl)-amino-S-triazines having the formula: ##STR1## wherein R.sub.1 and R.sub.2, equal to, or different from each other, indicate hydrogen, linear or branched C.sub.1-5 alkyl, or halogen (in particular, chlorine and bromine).

Abstract: Novel polycarbonate latex compositions comprising 0.1 to 30 mole percent of recurring units containing a carboxyl or a tertiary amine acid addition salt component are disclosed.The latex compositions are made by:(a) preparing a polycarbonate comprising from about 0.1 to 30 mole percent of recurring units having a carboxyl or a tertiary amine acid additon component;(b) dissolving the polycarbonate in a water miscible solvent having a boiling point below about 100.degree. C.;(c) blending the solution of (b) with water; and(d) removing the water-miscible solvent.

Abstract: Described herein are novel substantially linear monomeric compositions which can be polymerized with one or more difunctional monomers to give novel polymeric compositions having liquid crystal properties. This invention is also directed to a process for preparation of the novel substantially linear monomeric compositions.

Abstract: Triazine compounds are disclosed which are useful for imparting UV screening properties to polymers of the formula: ##STR1## wherein R is an electron withdrawing group; R.sub.1 is H, ##STR2## where R.sub.3 is an alkyl group having from one to about six carbon atoms; and R.sub.2 is selected from H and CH.sub.3, also disclosed are polymer compositions having improved UV screening properties containing said triazine compounds.

Abstract: Novel polycarbonate latex compositions comprising 0.1 to 30 mole percent of recurring units containing a carboxyl or a tertiary amine acid addition salt component are disclosed.The latex compositions are made by:(a) preparing a polycarbonate comprising from about 0.1 to 30 mole percent of recurring units having a carboxyl or a tertiary amine acid addition component;(b) dissolving the polycarbonate in a water miscible solvent having a boiling point below about 100.degree. C.;(c) blending the solution of (b) with water; and(d) removing the water-miscible solvent.

Abstract: The present invention relates to bis-quinoxalines of the formula I ##STR1## their preparation, their use as branching agents for the preparation of branched, thermoplastic polycarbonates and the branched thermoplastic polycarbonates.

Abstract: Disclosed is a polyester carbonate containing imido groups comprising recurring units represented by the following formula: ##STR1## and recurring units represented by the following formula:--O--Ar--O--CO-- (2)wherein Ar represents a divalent aromatic hydrocarbon group selected from the group consisting of ##STR2## with a mole fraction of the recurring units shown by the formula (1) being 0.2 to 0.8, and having a reduced viscosity [.eta.sp/C] of 0.3 dl/g or more at 60.degree. C. in a solution in which the polyester carbonate is dissolved in p-chlorophenol as a solvent at a concentration of 0.2 g/dl.Further disclosed is a process for producing the same which comprises allowing 4-carboxy-N-(3-hydroxyphenyl)-phthalimide to react with a divalent phenol represented by the following formula:HO--Ar--OH (3)wherein Ar has the same meaning as above,and diphenyl carbonate.

Abstract: The present invention relates to bis-quinoxalines of the formula I ##STR1## their preparation, their use as branching agents for the preparation of branched, thermoplastic polycarbonates and the branched thermoplastic polycarbonates.

Abstract: Novel polycarbonate latex compositions comprising 0.1 to 30 mole percent of recurring units containing a carboxyl or a tertiary amine acid addition salt component are disclosed.The latex compositions are made by:(a) preparing a polycarbonate comprising from about 0.1 to 30 mole percent of recurring units having a carboxyl or a tertiary amine acid addition component;(b) dissolving the polycarbonate in a water miscible solvent having a boiling point below about 100.degree. C.;(c) blending the solution of (b) with water; and(d) removing the water-miscible solvent.

Abstract: A composition comprising an end-capped aromatic carbonate polymer wherein the end-cap is of the structure ##STR1## wherein R is ##STR2## wherein R.sub.1 and R.sub.2 are the same or different and are alkyl of one to six carbon atoms, inclusive; cycloalkyl of four to seven carbon atoms, inclusive; phenyl; one to three alkyl substituted phenyl each alkyl having one to three carbon atoms, inclusive; and R.sub.1 and R.sub.2 taken together with the nitrogen to which they are attached form a ring of four to six carbon atoms; and wherein R.sub.3 is alkyl of one to ten carbon atoms, inclusive; or cycloalkyl of four to eight carbon atoms, inclusive.

Abstract: The invention relates to an aromatic, high molecular weight thermoplastic copolycarbonate comprising the reaction product of a sulfur-free aromatic diphenol, a sulfur-containing diphenol, a branching agent and a carbonic acid derivative, characterized in having improved flame resistance. The invention further relates to a process for the preparation of said copolycarbonate.

Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) polyfunctional cyanate ester, prepolymer of the cyanate ester, or coprepolymer of the cyanate ester and an amine, and (b) cyclopentadiene or polycyclopentadiene and a curable resin composition comprising a mixture or a preliminary reaction product of above component (a), above component (b) and (c), a polyfunctional maleimide, prepolymer of the maleimide or coprepolymer of the maleimide and an amine are disclosed. Cured resin having excellent impact-resistance, adhesive power, heat-resistance and chemical-resistance can be prepared from the compositions.

Abstract: A process for producing polycarbonate is described, comprising reacting a chloroformate group-containing polycarbonate oligomer with an aqueous alkaline solution of a compound containing at least three functional groups and, thereafter, interfacial polycondensing the above-obtained reaction product with an aqueous alkaline solution of a dihydric phenol compound. The thus-produced polycarbonate has good melt characteristics compared with conventional polycarbonates, and the dependence of melt viscosity on a rate of shear is large. Thus, the polycarbonate of the invention is suitable for extrusion molding, particularly for blow molding using an extrusion molding machine, and can provide good quality sheets or molds.

Abstract: The new thermoplastic copolyester carbonates which are based on polybutylene glycols and hexahydrophthalic acid or trimethyladipic acid, as well as admixtures of copolyester carbonates of this type with known polycarbonates are suitable for thermoplastic moulding compositions, particularly where good stability to solvents, such as petrol, is required.

Abstract: A thermoplastic aromatic copolycarbonate resin is provided having an enhanced flame retardance and characterized in that its molecular structure comprises polycondensation residues of ##STR1## wherein R and R' independently are organic radicals.

Abstract: Novel carbonate polymers comprised of the reaction product of a dihydric phenol, a carbonate precursor, and at least one imide selected from the group of compounds represented by the formulae ##STR1##

Abstract: Ordered ester/carbonate copolymers having improved properties at higher solids are provided by (1) contacting a dihydric organic compound such as bisphenol-A with a diacid halide such as terephthaloyl chloride and a carbonate precursor such as phosgene under conditions sufficient to form an ester/carbonate oligomer and (2) contacting the oligomer with additional carbonate precursor to produce the desired ordered ester/carbonate copolymer.

Abstract: Anionic copolymers of lactams and aliphatic polycarbonates having urethane and carboxylic acid ester groups, preferably having recurring structural units of the formula:--NH--CO--O--Y--O--CO--(CR.sub.2).sub.n --whereinR represents hydrogen or C.sub.1 -C.sub.4 -alkyl;n represents an integer of from 2 to 13;Y represents the residue of an alcohol of the following formula:HO--X--OH,whereinX represents an open-chain, cyclic or mixed open-chain-cyclic alkylene radical having from 2 to 12 carbon atoms which is optionally substituted by C.sub.1 -C.sub.4 -alkyl and optionally interrupted by from 1 to 3 oxygen atoms, or a polyethylene glycol having a molecular weight up to 10,000 or an alkoxylation product of bifunctional phenols.

Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) at least one cyanate compound selected from the group consisting of polyfunctional cyanate esters, prepolymers of said cyanate esters, coprepolymers of said cyanate esters and an amine and mixtures thereof, (b) at least one compound having two or more acrylic ester groups represented by the formula ##STR1## wherein R.sup.1 is organic group comprising as member constituting a main chain or ring C and optionally O and/or N and optionally as a pendant hydroxy and/or halogen, when R.sup.1 contains aromatic group, R.sup.1 has 6-35 carbon atoms, and when R.sup.1 contains no benzene ring, R.sup.1 has 1-15 carbon atoms, X is hydrogen or methyl, n is integer of 2, 3, 4, 5 or 6 and valency of R.sup.1 is the same as n, and optionally (c) at least one compound selected from the group consisting of polyfunctional maleimides, prepolymers of the maleimides or coprepolymers of the maleimides and an amine is disclosed.

Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) polyfunctional cyanate ester, prepolymer of the cyanate ester, or coprepolymer of the cyanate ester and an amine, and (b) alkenyl acrylic esters, alkenyl methacrylic esters, prepolymers of alkenyl acrylic esters, prepolymers alkenyl methacrylic esters, coprepolymers of alkenyl acrylic esters and alkenyl methacrylic esters and mixtures thereof, and a curable resin composition comprising a mixture or a preliminary reaction product of above component (a), above component (b) and (c) a polyfunctional maleimide, prepolymer of the maleimide or coprepolymer of the maleimide and an amine are disclosed. Cured resin having excellent impact-resistance, adhesive power, heat-resistance and chemical-resistance can be prepared from the compositions.

Abstract: A polycarbonate transesterification process comprising reacting a bis(ortho-nitroaryl)carbonate and a dihydric phenol under transesterification reaction conditions.

Abstract: An improved transesterification process wherein a bis(ortho-nitroaryl)carbonate and a dihydric phenol are reacted to form a polycarbonate under transesterification reaction conditions, the improvement comprising the use of a hypernucleophilic base.

Abstract: Polycarbonate resins can be rendered resistant to ultraviolet light by chain-stopping the resins with certain cyanoacrylate moieties.

Abstract: The invention relates to a process for the preparation of branched, thermoplastic, high-molecular weight and soluble polycarbonates having improved properties, by incorporation of 3,3-bis-(4-hydroxyaryl)-oxindoles as a branching agent. The invention further relates to the polycarbonates obtained in accordance with this process.

Abstract: The present invention relates to a process for the preparation of branched thermoplastic polycarbonates, characterized in that diphenols are completely reacted with about 0.05 to about 2.0 mol %, relative to mols of diphenols, of cyanuric chloride in a primary reaction, while controlling the pH and temperature and in the presence of a co-solvent, and thereafter the products are subjected to polycondensation, in accordance with known methods of the phase boundary process, to give high-molecular weight, branched polycarbonates. The invention further relates to the branched polycarbonates prepared by this process.