Abstract: A decorative masonry system includes a first block having a first body portion and a first plurality of edges and a second block having a second body portion and a second plurality of edges. A first gutter is defined by a portion of the first plurality of edges, and a second gutter is defined by a portion of the second plurality of edges. The decorative masonry system further includes mastic configured to operably couple the first and second blocks to a substrate.

Abstract: Copolymers comprising amide units and ester units are prepared by melt phase interchange of diaryl esters of dicarboxylic acids and diamines with dihydric alcohols and diesters of aromatic dicarboxylic acids. The products are tough resins, useful per se as molding compounds, and to compatibilize and toughen other thermoplastic polymers.

Abstract: Thermoplastic resins of enhanced solvent resistance especially useful for packaging or automotive parts comprising blends of amorphous polyamides with a thermoplastic polyester resin, substantially free of a polyarylate have excellent physical properties and barrier resistance to oxygen and carbon dioxide. Preferred blends comprise polyesters prepared by reacting a dihydric alcohol with a dicarboxylic acid, and amorphous polyamides prepared from non-symmetric monomers comprising odd-number chain diamines and diacids, and meta aromatic diamines and diacids.

Abstract: Copolymers comprising amide units and ester units are prepared by melt phase interchange of diaryl esters of dicarboxylic acids and diamines with dihydric alcohols and diesters of aromatic dicarboxylic acids. The products are tough resins, useful per se as molding compounds, and to compatibilize and toughen other thermoplastic polymers.

Abstract: Copolymers comprising amide units and urea units are prepared by melt phase interchange of diaryl esters of dicarboxylic acids with diamines and diesters of carbonic acid with diamines. The products are tough resins, useful per se as molding compounds, or in blends with other thermoplastic polymers.

Abstract: An aromatic polyphthalatecarbonate resin having a small percentage of phthalate units therein exhibits improved resistance to hazing and yellowing upon exposure to ultraviolet radiation. The polyphthalate carbonate resin is derived from the reaction products of a phthalate compound, a dihydric phenol and a carbonate precursor.

Abstract: Copolymers are prepared by the interaction of a melt mix comprising a high molecular weight poly(alkylene arylate) resin with a high molecular weight polycarbonate or polyester carbonate and a catalyst, such as diphenyl phosphate. The copolymers are tough and are useful as molding compounds and are capable of maintaining dimensional stability at temperatures approaching their singale glass transition temperature. The copolymers are characterized by having substantially no content of polyester homopolymer and a ratio of arylate linkages to dihydric phenol arylate linkages of not substantially less than 20:1.

Abstract: An amorphous polyamide resin is provided having the combined properties of a high glass transition temperature and excellent oxygen barrier properties. The polyamide is obtained from the reaction products of para-xylylene diamine, adipic acid and isophthalic acid, and finds particular utility as a container layer for hot fill packaging of fruit juices.

Abstract: Scrap poly(ethyleneterephthalate) is converted to useful amine and diamine monomers such as para-xylylenediamine, 1,4-bis(aminomethyl)cyclohexane and 4-aminomethyl benzoic acid for the production of various polyamides. The conversion of poly(ethyleneterephthalate) to diamine monomers is achieved by a three step process involving (a) ammonolysis of the poly(ethyleneterephthalate) to produce terephthalamide and ethylene glycol; (b) pyrolytic dehydration of the terephthalamide to produce terephthalonitrile; and (c) hydrogenation of the terephthalonitrile to produce the para-xylylene diamine and/or 1,4-bis(aminomethyl)cyclohexane. The conversion of poly(ethyleneterephthalate) to 4-aminomethyl benzoic acid involves the steps of (a) ammonolysis of the poly(ethyleneterephthalate) to produce terephthalamide; (b) partial pyrolytic dehydration of said terephthalamide to produce 4-cyanobenzoic acid; and (c) hydrogenation of said 4-cyanobenzoic acid to produce 4-aminomethylbenzoic acid.

Abstract: Polycarbonate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group consisting of hydrogen, halogen, hydrocarbyl of from 1 to 12 carbon atoms, inclusive; and halogen-substituted hydrocarbyl of 1 to 12 carbon atoms, inclusive; R.sub.1 is attached to a ring carbon atom at one of the 4, 5 or 6 positions; and R.sub.2 and R.sub.3 when taken together represent the divalent moiety of formula: --CH.dbd.CH.sub.2 --CH.sub.2 .dbd.CH--which effectively creates an additional fused aromatic ring structure. The resins exhibit a low plate-out when processed thermally.

Abstract: A polyphthalatecarbonate/polycarbonate blend exhibits improved resistance to hazing and yellowing from prolonged exposure to ultraviolet radiation. The blend is useful in the production of transparent, ultraviolet radiation stable sheets and films.

Abstract: A method for recovering a dihydric phenol from scrap polyester which comprisesa. contacting an aromatic polyester selected from the group consisting of polycarbonate, copolyestercarbonate and a polyarylate with(1) an aqueous ammoniacal solution of sufficient strength of sever the ester bonds of the aromatic polyester and(2) an alkylchloride in which the polyester is at least partially soluble,b. forming two mobile liquid phases, the top phase being aqueous and the bottom phase being the alkyl chloride and containing ammonium dihydric phenolate;c. separating the top phase from the bottom phase;d. recovering from the bottom phase the dihydric phenol.

Abstract: A bat handle for attachment to plastic bottles or containers in the form of an elongated tubular plastic handle having an internally threaded tubular end portion for threaded engagement with the threads normally provided on the neck of a plastic beverage bottle or other similar bottles or containers to form a combination bat handle and bottle that can be used in the nature of a baseball bat, softball or the like so that children may use the combination handle and bottle as a toy bat for batting lightweight balls such as hollow plastic or rubber balls with or without apertures in the periphery thereof, foam plastic balls, sponge rubber balls, inflated balls and the like. The bat handle is simulative in color, shape and apearance to an actual bat handle and includes a knob on the end thereof remote from the internally threaded end portion.

Abstract: Copolymers comprising amide units and urea units are prepared by melt phase interchange of diaryl esters of dicarboxylic acids with diamines and diesters of carbonic acid with diamines. The products are tough resins, useful per se as molding compounds, or in blends with other thermoplastic polymers.

Abstract: Polycarbonate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group consisting of hydrogen, halogen, hydrocarbyl of from 1 to 12 carbon atoms, inclusive; and halogen-substituted hydrocarbyl of 1 to 12 carbon atoms, inclusive; R.sub.1 is attached to a ring carbon atom at one of the 4, 5 or 6 positions; and R.sub.2 and R.sub.3 when taken together represent the divalent moiety of formula:--CH.dbd.CH.sub.2 --CH.sub.2 .dbd.CH--which effectively creates an additional fused aromatic ring structure. The resins exhibit a low plate-out when processed thermally.

Abstract: The intrinsic viscosity of a high molecular weight aromatic polycarbonate resin is reduced and the melt processability is concomitantly enhanced by the inclusion of a small amount of a fatty acid or acids. The mixture of polymer and acid is more readily extrudable, without detriment to other desirable physical and chemical properties.

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 an an insulating coating on an electrical conductor.

Abstract: A process for making polyetherimides involving reacting an aromatic bis(ether anhydride) with an organic diamine in the presence of a solvent so as to form a polyamide acid. The polyamide acid is thereafter polymerized in a solid state at a temperature below the glass transition temperature of the final polyetherimide.

Abstract: A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermoplastic condensation polymers containing hetero groups.

Abstract: A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermoplastic condensation polymers containing hetero groups.