Abstract: A polymer composition having improved physical properties, and a method of preparing same.

Abstract: An improved high performance thermally stable polymer is provided. Such polymer is composed primarily of recurring 6-oxy-2-naphthoyl moieties and is preferably a homopolymer of 6-oxy-2-naphthoyl moieties, i.e. poly(6-oxy-2-naphthoate). It is particularly suited for use in the formation of plasma spray coatings and compression or impact molded articles, and has been found to offer a thermal stability which is superior to that of poly(4-oxybenzoate). Small amounts (as described) of other ester-forming moieties and/or amide-forming moieties optionally may also be present.

Abstract: Compositions comprising polyethylene terephthalate and an additive to promote crystallization rate and improve surface appearance selected from the group consisting of monomeric esters of citric acid and epoxidized esters of unsaturated aliphatic carboxylic acids. Compositions comprising polyethylene terephthalate, poly (C.sub.4 -C.sub.6) terephthalate, and a surface appearance and crystallization rate improving additive selected from the group consisting of monomeric esters of citric acid, organic esters of an aromatic carboxylic acid of 7 to 11 carbon atoms containing at least one carboxyl group per aromatic nucleus and an alcohol, oligomeric polyesters, and epoxidized esters of unsaturated aliphatic carboxylic acids.

Abstract: Improved injection moldability of polyethylene terephthalates is achieved by the addition of small amounts of at least one monoepoxyalkane. The injection moldability is further improved by the further addition of small amounts of an adjuvant synergistically cooperative with the monoepoxyalkane. The improved moldability and mold releasability is achieved even when the composition is injection molded at mold temperatures of at least as low as 93.degree. C.

Abstract: An anticorrosive coating composition comprising (i) an aqueous medium, and dispersed therein, (ii) a water-soluble, film-forming and crosslinkable resin having a hydroxyl group and a proton-free onium salt radical and (iii) a chelate compound of titanium or zirconium.

Abstract: A colored polyester composition comprising an aromatic polyester and as a coloring agent, a barbituric acid-type pigment of the formula ##STR1## wherein ##STR2## represents an o-phenylene group or a 1,2- or 2,3-naphthylene group, each of which may have a phenyl group as a substituent.

Abstract: A process for the production of reinforced rubber articles formed from polyester yarn embedded into rubber stock is disclosed. The process comprises the steps of: (1) treating the yarn with a finish composition which comprises water and a silane having the structural formula: ##STR1## wherein n=2 to 5, and (2) including from about 2 to 50 parts, per hundred parts of rubber, of silica particles in the rubber stock. The reinforced rubber article is preferably a pneumatic passenger tire which has excellent adhesion of tire cord to rubber.

Abstract: A fast crystallizing polyester wherein the polyester has an intrinsic viscosity of greater than 0.3 and at least 90 mole % of the repeating units of the polyester are residues obtained from aromatic diacids or hydroxyacids and aliphatic diols characterized in that at least some of the acid end groups of the polyester have the formula --Y.sup.- M.sup.+ where M is an alkaline metal ion and Y is an anion selected from carboxylate, sulphinate, phosphinate, phosphate, sulphonate, phosphite and borate ions, which ionized end groups have been produced during polymerization of the polyester by either:(a) copolymerizing units derived from materials of formula X--R--Y.sup.- M.sup.+ wherein X is a group capable of being polymerized onto the polyester chain, R is an aliphatic, cycloaliphatic or aromatic group, or(b) polymerizing the polyester in the presence of an alkaline metal salt or corresponding base,the concentration of groups of formula Y.sup.- M.sup.

Abstract: A novel wholly aromatic polyester is provided which contains specified concentrations of recurring 2,6-dicarboxynaphthalene moiety, 2,6-dioxynaphthalene moiety, terephthaloyl moiety, and 1,4-dioxybenzene moiety. It has been found that such polyester is capable of exhibiting an anisotropic melt phase which is readily melt processable to form quality fibers, films, molded articles, etc. The absence in the polymer chain of moieties derived from hydroxy acids has been found to yield a highly linear more extended polymer chain along the polyester which contributes to the stiffness characteristics of shaped articles comprising the same.

Abstract: A melt processable poly(ester-carbonate) which is capable of forming an anisotropic melt phase is provided. The poly(ester-carbonate) of the present invention consists essentially of the recurring units (a) 6-oxy-2-naphthoyl moiety, (b) dioxyaryl moiety, (c) carbonyl moiety (i.e., carbonate moiety), and, optionally, (d) other aromatic moiety derived from aromatic hydroxyacid and (e) carbocyclic dicarboxyl moiety in the proportions indicated. Preferably, the dioxyaryl moiety is derived from hydroquinone, the carbonic acid moiety which is derived from a diarylcarbonate (e.g., diphenyl carbonate), and the additional aromatic moiety which is derived from an aromatic hydroxyacid is derived from hydroxybenzoic acid. The resulting poly(ester-carbonate) exhibits a melting temperature below approximately 400.degree. C., preferably below approximately 350.degree. C. The poly(ester-carbonate) of the present invention is preferably formed by a melt polymerization technique.

Abstract: The present invention provides a non-burning, non-dripping polyester blend composition in which transesterification is suppressed, as indicated by, e.g., improved heat deflection temperature. The composition comprises (a) approximately 35 to 85 percent by weight of a blend of polyethylene terephthalate and polybutylene terephthalate wherein the polyethylene terephthalate comprises approximately 10 to 25 percent by weight of the blend; (b) approximately 5 to 60 percent by weight of a reinforcing agent; (c) approximately 4 to 15 percent by weight of at least one halogen-containing organic flame retardant compound; and (d) approximately 2 to 10 percent by weight of the amorphous non-abrasive reaction product of antimony trioxide, or a compound of antimony which generates antimony trioxide, and a substrate comprising a hydrous compound of silicon in a weight ratio within the range of approximately 1:1 to 1:4, on an antimony trioxide:substrate basis. The composition may further comprise approximately 0.

Abstract: A thermoplastic resin composition is quickly crystallizable and comprises 0.1 to 10 wt. parts of an alkali metal salt of higher fatty acid having carbon atoms of at least 26 obtained by an addition of a fatty acid to .alpha.-olefin having carbon atoms of at least 23 per 100 wt. parts of a thermoplastic polyester.

Abstract: Polyethylene terephthalate molding compositions characterized by rapid crystallization are provided by combining polyethylene terephthalate and a filler or reinforcing agent with a crystallization-rate promoter comprising neopentyl dibenzoate.

Abstract: Copper powder or a copper compound is mixed with a substantially linear polyester series resin, and the resultant resin composition is formed into a predetermined shape. Thereafter, the resin composition is heated to a temperature above the melting point of the resin in an oxygen-containing atmosphere for cross-linking the polyester series resin.

Abstract: A molding composition is comprised of (i) a thermoplastic polymer, (ii) glass fibers and (iii) a bis-maleimide, and is useful for the fabrication of a variety of shaped articles, especially for the automotive industry [e.g., radiators, battery casings, fans, etc.].

Abstract: A modified polyalkylene terephthalate composition comprising polyalkylene terephthalate and polyoxyalkylene compound having metal salt of organic carboxylic acid. The composition, which can be used as a molding material, has improved workability, high crystallizing rate and excellent mechanical strength.

Abstract: A process of forming an image of toner on a latent magnetic image in a magnetic member followed by direct transfer to and coalescence on a surface to form a resist is disclosed. The surface portion not protected by the transferred resist toner image is then permanently modified by etching or plating. Chemically milled shapes are prepared as well as printed circuits and printing plates. The printed circuits may be formed by (1) etching away areas of a metal surface not protected by the resist, (2) electroless plating on areas not protected by the resist or (3) electroplating areas of a metal surface not protected by the resist, removing the resist, and in the case of (2) and (3), etching away the metal previously covered by the resist. An especially useful toner which forms a resist composition comprises a binder of thermoplastic resin and plasticizer and magnetic material present in the binder, compounded to have a tack transfer temperature of no greater than 110.degree. C.

Abstract: A polyethylene terephthalate composition comprising the salt of a dimer acid, trimer acid or the salt of a mixture of dimer and trimer acid. The dimer and/or trimer acids are neutralized with a Group IA metal cation, preferably sodium. The composition can contain a filler, plasticizer, impact modifier and/or a polyepoxide.

Abstract: A thermoplastic polymeric material comprises a copolymer which is a poly(bisphenol A tere- and/or isophthalate) copolycarbonate having a molar ratio of phthalate to carbonate units in the inclusive range from 2 to 10, preferably 3 to 8. The material, which may be prepared by techniques which are known, may be used in applications for high temperature transparent thermoplastics, eg transparencies for the aerospace industry.

Abstract: An improved wholly aromatic polyester is provided which exhibits an anisotropic melt phase and which is capable of readily undergoing melt processing. The wholly aromatic polyester consists essentially of the recurring units (a) p-oxybenzoyl moiety, (b) 2,6-dioxynaphthalene moiety, (c) 2,6-dioxyanthraquinone moiety, and (d) terephthaloyl moiety in the concentrations indicated. The resulting polymer is substantially free of aromatic rings possessing ring substitution and meta disposed linkages in the polymer chain. The present invention represents an improvement over the polyester of U.S. Pat. No. 4,184,996 since the melt phase may be formed at an advantageously reduced temperature thereby better facilitating the use of standard melt processing equipment when forming fibers, films, three-dimensional shaped articles, etc.

Abstract: Polyethylene terephthalate type resin-containing molding compositions reinforced with glass fibers also containing from 0.03 to 5 weight percent of an organic caboxylic acid metal salt such as sodium stearate and an ether compound such as polyoxyethylene monononylphenyl ether present in an amount of from 0.1 up to 20 weight percent in which the average number of recurring alkylene oxide units is from 5 to 200 are disclosed. Also a solid or liquid paraffin or polyethylene wax may be included in an amount of from 0.3 to 5 weight percent. Moldings made from the disclosed compositions have a uniform appearance and exhibit improved heat resistance.

Abstract: Use of a selected alkali metal salt of a polycarboxylic acid has been found to impart good crystallization and mold release properties to polyethylene terephthalate molding blends.

Abstract: A composition and a method to crystallize the composition. The composition comprises a linear saturated polyester, preferably poly(ethylene terephthalate) and from 0.05 percent to 0.6 percent of sodium nitrite. The composition can contain a plasticizer, impact modifier and a filler.

Abstract: A polyethylene terephthalate resin composition capable of providing a molded article of a high crystallinity and an excellent dimensional stability and thermal resistance consists essentially of a polyethylene terephthalate resin having an intrinsic viscosity of 0.35 to 0.9 and, per 100 parts by weight of the polyethylene terephthalate resin, 5 to 200 parts by weight of an inorganic filler, 0.01 to 20 parts by weight of dimethyl or diethyl terephthalate and 0.01 to 5 parts by weight of a salt of a carboxylic acid with a metal of Group I or II in the periodic table or 0.1 to 10 parts by weight of an ionic copolymer of an .alpha.-olefin with a salt of an .alpha.,.beta.-unsaturated carboxylic acid and containing an ion of a metal of Group I or II in the periodic table.

Abstract: The invention relates to a process for coloring linear polyesters in the melt. The process comprises the use of 1-hydroxy-4-phenylaminoanthraquinones of the formula ##STR1## wherein one X is a hydrogen atom and the other is an alkylsulfonyloxy or chloroalkylsulfoxy group and Y is a hydrogen or halogen atom or an alkyl group. The violet shades obtained are distinguished by excellent color strength and purity and also by good fastness properties.

Abstract: The invention is directed to biaxially oriented thermoplastic polymer flexible film having a substantially uniform thickness between about 0.005 and 0.030 of an inch (0.13 mm and 0.76 mm) and characterized by a structure comprised of discrete, platelet-like spherulitic crystalline aggregates compressed transversely to the plane of the film and biaxially oriented in the plane of the film and having a combination of improved properties and also to a rigid conduit or extrudate having a plurality of thermoplastic crystalline polymer layers each of which has a unique microstructure and improved properties.

Abstract: This invention relates to the treatment of glass fibers and to compositions suitable for use in the treatment of glass fibers which comprise acid salts of polyester aminoorganosilanes and polyalkylene oxide polymers.

Abstract: A method of preparing a dispersion of a crystalline linear saturated polyester of high molecular weight which comprises contacting said polyester with a high boiling organic liquid whose boiling point is at or above the melting point of the polyester, the weight ratio of polyester to high boiling organic liquid being between 40:60 and 60:40 and heating the resultant mixture at elevated temperature until a homogeneous mass forms, cooling the resultant mass with stirring too such an extent that the melt material is still able to flow or be stirred and then allowing the material to further cool and stiffen without further stirring; or before or during further cooling diluting the mixture while it is still capable of flowing or being stirred, with an additional amount of a high boiling organic liquid or a liquid miscible therewith and thereafter further cooling the resultant mixture.

Abstract: There is disclosed a method for the stabilization of polyester resins by incorporating in the resins certain types of 4-mercaptophenol derivatives.

Abstract: A novel polyester is provided which has been found to exhibit an optically anisotropic melt phase which enables it readily to undergo melt processing to form quality fibers, films, molded articles, etc. The polyester of the present invention contains recurring 6-oxy-2-naphthoyl moieties in addition to moieties derived from at least one aromatic diol and trans-1,4-cyclohexanedicarboxylic acid in the proportions indicated. The hydrogen atoms present upon the rings of these moieties optionally may be at least partially substituted (as described). The polyester is capable of forming the desired anisotropic melt at a temperature below approximately 350.degree. C., and in a particularly preferred embodiment at a temperature below approximately 320.degree. C.

Abstract: A novel thermotropic polyester is provided which has been found to exhibit an optically anisotropic melt phase at a temperature which enables it readily to undergo melt processing to form quality molded articles, fibers, etc., which exhibit substantial flexibility. For instance, molded articles can be prepared having an unusually high impact strength, toughness, and high extension in addition to other highly satisfactory mechanical properties. The polyester of the present invention contains recurring 6-oxy-2-naphthoyl and p-oxybenzoyl moieties in addition to terephthaloyl moieties and meta-dioxyphenylene moieties in the proportions indicated. Such meta-dioxyphenylene moieties are non-symmetrical in structure. The hydrogen atoms present upon the aromatic rings of these moieties optionally may be at least partially substituted (as described). The wholly aromatic polyester is capable of forming the desired optically anisotropic melt at a temperature below approximately 350.degree. C.

Abstract: Alkali metal salts or/and alkaline earth metal salts of cyclic phosphorus compounds expressed by the general formula ##STR1## (wherein X.sub.1 to X.sub.8 each represent hydrogen, halogen, cyano group, acyl group, alkyl group, halogen-substituted alkyl group, aryl group, halogen-substituted aryl group or aralkyl group) are provided. These metal salts impart a specific flame retardancy to organic high molecular weight compounds prepared from alkylidenebisphenols as a raw material, without lowering the characteristic properties of substrates.

Abstract: Disclosed are primer compositions for enhancing the adhesion of hot-melt adhesives to substrates comprising a copolyester of at least 50 mole percent terephthalic acid, about 10-90 mole percent 1,4-butanediol or 1,6-hexanediol, and a solvating amount of a volatile solvent, the copolyester having an I.V. of about 0.3-1.5 dl/g and a melting point of about 100.degree.-200.degree. C.