Abstract: A composition comprisinga. a major amount of an aromatic polycarbonate;b. a minor amount of an impact modified comprising(i) an amorphous polyester comprising units derived from 1,4-cyclohexane dimethanol and aromatic dicarboxylic acid or ester forming derivative; and(ii) an olefin acrylate polymeric resin;the components (i) and (ii) in such quantities that said composition has the following properties(a) thick section notched Izod impact resistance better than a,(b) compatibility as measured by Izod impact resistance of a part made from a double gated mold better than that for a+b (i) or a+b (ii); and(c) better resistance against basic organic solution as measured by notched Izod in thin section than a+b (i); and(d) a flexural property and heat strength improving quantity of glass fiber which additionally maintains the ductility of (a) and (b) under notched Izod impact testing before and after aging in a basic organic solution.

Abstract: Processes for the preparation of bisphenols from phenols and substituted vicinal glycols, or unsaturated alcohols or substituted dienes resulting in bisphenols represented by the general formula: ##STR1## wherein: R.sup.1 and R.sup.2 are independently selected from monovalent hydrocarbon and monovalent hydrocarbonoxy radicals of one to four carbon atoms, or from halogen radicals;R.sup.3, R.sup.4 and R.sup.5 is each a lower alkyl radical, preferably of one to four carbon atoms, aryl radicals, alkaryl radicals, aralkyl radicals, and cycloalkyl radicals, and is the same or different; R.sup.5 may also be hydrogen.n and n.sup.1 are independently selected from whole numbers having a value of from 0 to 4 inclusive.

Abstract: The invention relates to information carriers for optically readable information. The information carrier is built up from an actual carrier and a metal layer provided thereon. The actual carrier is manufactured from a polycarbonate resin consisting of a mixture of an aromatic polycarbonate, an epoxy compound and usual additives. The presence of an epoxy compound in the polycarbonate resin results in a better bonding between the metal layer and the polycarbonate resin. In order to be able to manufacture the actual carrier by means of injection molding, it is to be preferred to use a polycarbonate having a weight-averaged molecular weight from 10,000 to 20,000.

Abstract: Polymers containing at least one terminal group represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen and monovalent hydrocarbon radicals.

Abstract: Carbonate polymer comprised of the reaction products of:(i) at least one dihydric phenol;(ii) a carbonate precursor; and(iii) an optical property improving amount of at least one cyclic anhydride represented by the general formula ##STR1## wherein: X represents a divalent nonaromatic cyclic hydrocarbon radical;R is independently selected from monovalent hydrocarbon radicals; andn is a positive integer having a value of from 0 up to the number of replaceable hydrogen atoms present on X.

Abstract: Polycarbonate composition comprising, in physical admixture:(i) from about 10 to about 96 weight percent high molecular weight aromatic thermoplastic polycarbonate resin;(ii) from about 2 to about 35 weight percent of a olefin vinyl alcohol copolymer; and(iii) either from about 2 to about 35 weight percent of an olefin vinyl ester copolymer or from about 2 to about 90 weight percent of a polyolefin resin.

Abstract: A composition useful for improving impact strength of an aromatic copolyester carbonate having isophthalate units comprising the said aromatic copolyester carbonate and impact modifier useful in impact modifying aromatic polycarbonate.

Abstract: The compositions of the invention comprise a high molecular weight polycarbonate resin and a hydrogenated AB diblock copolymer wherein A is derived from an alkenyl aromatic compound and B is derived from isoprene. The compositions may also include minor amounts of an acrylic interpolymer.

Abstract: Copolyester-carbonate composition exhibiting improved resistance to organic solvents comprising, in admixture:(i) at least one aromatic copolyester-carbonate resin;(ii) at least one aromatic polycarbonate resin;(iii) at least one selectively hydrogenated block copolymer of a vinyl aromatic compound and an olefinic elastomer; and(iv) at least one polymer selected from an olefin acrylate copolymer, an olefin diene terpolymer, or mixtures thereof. The instant composition also exhibits improved impact properties and relatively high heat resistance.

Abstract: Flame retardant and drip retardant polycarbonate composition comprised of:(i) at least one aromatic carbonate resin;(ii) a flame retardant amount of at least one flame retardant compound; and(iii) a drip retardant amount of at least one bis cyclic carbonate represented by the general formula ##STR1## wherein X, Y, X' and Y' are the same or different and are hydrogen or alkyl of one to about six carbon atoms, inclusive; W, W', Z and Z' are the same or different and are alkyl of one to about six carbon atoms, inclusive, and E is alkylene or alkylidene of two to about twelve carbon atoms, inclusive.

Abstract: Polycarbonate composition comprising, in physical admixture:(i) from about 10 to about 96 weight percent of at least one high molecular weight thermoplastic aromatic polycarbonate resin;(ii) from about 2 to about 35 weight percent of at least one olefin vinyl ester copolymer; and(iii) from about 2 to about 35 weight percent of at least one olefin vinyl alcohol copolymer or from about 2 to about 90 weight percent of at least one polyolefin.

Abstract: A composition comprising an intimate thermoplastic admixture of at least two structurally dissimilar organic polymers, a delamination inhibiting effective amount of the first organic polymer covalent bond graft linked to the second organic polymer through a multifunctional graft linking agent of the insertion, electron deficient type the new admixtures are useful for the usual applications associated with the admixture properties.

Abstract: Novel heat resistant polycarbonates are provided which are the polymerized reaction products of:(i) a carbonate precursor; and(ii) at least one dihydric phenol selected from dihydric phenols represented by the general formulae ##STR1## wherein: each R.sup.1 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals;each R.sup.2 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals;R.sup.4 and R.sup.5 are independently selected from monovalent hydrocarbon radicals;R.sup.3 is selected from hydrogen and monovalent hydrocarbon radicals, with the proviso that if R.sup.3 is a hydrogen radical then at least one of the monovalent hydrocarbon radicals represented by R.sup.4 and R.sup.5 contains at least two carbon atoms;R.sup.7 is selected from hydrogen and monovalent hydrocarbon radicals;R.sup.

Abstract: Thermoplastic composition exhibiting improved hydrolytic stability comprised of in physical admixture at least one aromatic carbonate polymer and an effective hydrolytic stabilizing amount of at least one compound represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals.

Abstract: A multilayer composition comprising an outer layer of aromatic polycarbonate, an outer layer of a polymer prepared from an olefinic monomer, said outer layers tied together with a layer comprising an admixture of an olefin acrylate polymer and poly-(4-methylpentene-1), the olefin acrylate and poly-(4-methylpentene-1) in such quantities that the adhesive strength and clarity of the tie layer is not significantly reduced after exposure to hydrolytic conditions at elevated temperatures.

Abstract: Benzene, toluene and ethylbenzene is removed from the heavy residues of a phenol distillation in a phenol and acetone from cumene process.

Abstract: Polycarbonate composition exhibiting improved resistance to organic solvents comprised of, in admixture:(i) at least one high molecular weight thermoplastic aromatic polycarbonate resin;(ii) at least one selectively hydrogenated linear, sequential or radial teleblock copolymer resin of a vinyl aromatic compound (A).sub.n and (A').sub.n and an olefinic elastomer (B), of the A--B--A', A--(B--A--B).sub.n, A(BA).sub.n B, (A).sub.4 B, B(A).sub.4 or B((AB).sub.n B).sub.4 type wherein n is an integer of from 1 to 10; and(iii) at least one olefin-rubbery diene terpolymer; components (ii) and (iii) being present in amounts effective to improve the organic solvent resistance of said composition.The instant composition is useful in the production of extruded sheets and films, and injection or blow molded articles.

Abstract: Thermoplastic molding composition of a polycarbonate and a linear low density polyethylene wherein a C.sub.4 -C.sub.7 alpha-olefin is the comonomer.

Abstract: High molecular weight, thermoplastic, randomly branched polycarbonates of an aromatic dihydric phenol, a carbonate precursor, and a chain branching agent comprising at least one compound selected from the formula: ##STR1## where A is selected from alkylene radicals from 1 to 6 carbons, alkylidene radicals from 2 to 6 carbons, cycloalkylene radicals and cycloalkylidene radicals containing from 4 to 6 carbon atoms;R and R' are independently selected from halogen radicals, monovalent hydrocarbon radicals of from 1 to 4 carbon atoms, and monovalent hydrocarbonoxy radicals of from 1 to 4 carbon atoms;n is an integer having a value of 0 or 1; andp and p' are integers having a value of 0 or 1.

Abstract: A resin mixture comprising:(a) an aromatic polycarbonate resin preferably having no more than about 20% of the structural units of the formula ##STR1## wherein R is the same or different and is alkyl of one to four carbon atoms, inclusive and X is C.sub.1 -C.sub.5 alkylene or alkylidene, and(b) a modifier combination therefor comprising(i) a coupled resinous block copolymer having blocks comprising polymerized vinyl aromatic units connected to blocks comprising polymerized diene units; and(ii) a copolymer of an olefin and at least one of a C.sub.1 -C.sub.6 alkyl acrylate, a C.sub.1 -C.sub.6 alkyl methacrylate, acrylic acid, methacrylic acid, or a mixture of any of the foregoing,said modifier being present in said mixture in an amount of at least sufficient to impart to said mixture a resistance to environmental stress crazing and cracking greater than that possessed by said polycarbonate resin.