Abstract: In a vessel composed of a thermoplastic polyester such as polyethylene terephthalate, by incorporating a predetermined amount of a terminal amino group-containing polyamide or an amino group-containing compound into the polyester, acetaldehyde formed in the vessel wall can be effectively caught.

Abstract: Novel self-reinforced polymer composites of polyetherimide and a melt processable wholly aromatic polyester are prepared according to this invention. The wholly aromatic polyester exhibits anisotropic properties in the melt phase. Mixing is carried out at a temperature at which both the polyetherimide and the wholly aromatic polyester are melt processable. The products of this invention comprise about 35 to 95 percent by weight of wholly aromatic polyester, which is in the form of predominantly unidirectionally oriented continuous fibers primarily in the range of about 1 to 10 micrometers in diameter, distributed in a matrix of polyetherimide. The polymer composites of this invention have high tensile strength, high modulus, satisfactory elongation, good impact strength, and good high temperature properties.

Abstract: This invention relates to novel curable compositions comprising (a) a first component comprising an aromatic polymer having a first preponderant repeat unit and (b) a second component comprising an acetylene, maleimide, or vinyl terminated poly(imide) or poly(isoimide) or precursor thereof, which second component is compatible with the first component, has 1 to 300 second preponderant repeat units which are different from the first preponderant repeat units of the first component, is substantially free of elemental sulfur and reactive divalent sulfur, and is present in an amount effective to substantially cure the composition. The compositions are useful as adhesives, coatings and matrix resins for fiber reinforced composites. They exhibit improved adhesion to various substrates, increased tensile strength and improved resistance to cracking. The invention also relates to the composition which contains a reinforcing filler. The invention also relates to the composition after it has been cured.

Abstract: A thermotropic copolyester, having a nematic structure of the liquid-crystalline phase within a desired range of mesophase temperature, contains units derived from a saturated aliphatic dicarboxylic acid, 4,4'-dihydroxy-biphenyl and p-hydroxybenzoic acid, in a mutual ratio of from 1:1:0.5 to 1:1:8.This thermotropic copolyester is produced by copolymerizing in the molten state a saturated aliphatic dicarboxylic acid, 4,4'-diacyloxybiphenyl and p-acyloxybenzoic acid.The use is disclosed of the thermotropic copolyester as a self-reinforced material, and as a reinforcer material for such traditional thermoplastic polymers as polybutylene terephthalate, polyethylene terephthalate, polycarbonate and nylon.

Abstract: High modulus thermoplastic compositions and composites are produced which exhibit enhanced melt integrity and strength, allowing the composites to be melt-drawn to smooth surfaced, high tolerance profiles, such as thin-walled tubing, wire, coatings, films, etc. The melt integrity is improved by adding to the thermoplastic prior to or during thermoplastic melt processing a silicone component which will be vulcanized within the thermoplastic to form a silicone semi-interpenetrating polymer network initiated during the melt processing of the thermoplastic. The composition contains about 0.1 to 20, and preferably about 1 to 4 weight percent of the silicone network, and may also contain fibrous reinforcement and/or filler/modifiers.

Abstract: High shrinkage polyester fibers having good strength and uniform dyeability are disclosed, along with a method of producing the high shrinkage polyester fibers, by drawing a feeder yarn having a birefringence (.DELTA.n) of at least 0.0175 at ambient temperature and carefully controlled draw ratios.

Abstract: Polyimidesulfone and polyimideketone resins are rendered moldable while still retaining solvent resistance and high temperature physical and mechanical properties by incorporating an aromatic diaminopolysiloxane at a level between about 1 and about 20 mole % of the total diamine content, into the polymer.

Abstract: Thermoplastically polyamide moulding compositions produced from at least 70% by weight of polyamide, a long-chain polyester, polyether or hydrocarbon polyol and at most 5% by weight of a polyanhydride or polyepoxide.

Abstract: A sonic window suitable for use in sonar applications wherein an elastomer such as natural or synthetic natural rubbers, a low air entrapping fiber or fibril used for reinforcement, fillers, and thermosetting resins are formed into desired window configuration. The low air entrapment associated with the fiber or fibrils produces a remarkably sonicly transparent window.

Abstract: Novel thermoplastic elastomeric molding compositions having excellent physical properties, which comprise a blend of a polyetherimide ester elastomer and a polycarbonate resin.

Abstract: A molding composition, comprising:(i) 99-50 weight percent of a polymer blend comprising,(a) 5-95 weight percent nylon 6; and(b) 95-5 weight percent of a polyester copolymer comprising terephthalic acid and glycol monomer units, said glycol comprising 1,4-cyclohexylene dimethanol, and C.sub.2-6 alkylene glycol monomer units; and(ii) 1-50 weight percent of a copolyesterpolyamide comprising C.sub.6-15 alkylene dicarboxylic acid, diamine and diol monomer units, wherein said diol is a C.sub.2-6 alkylene diol or cyclohexane dimethanol and said diamine is a C.sub.4-8 alkylene diamine or a C.sub.4-10 cyclic diamine.

Abstract: Elastomers are prepared from high molecular weight relatively rigid difunctional compounds and low molecular weight compounds selected from diacids, diols, diamines, hydroxyacids, hydroxyamines and aminoacids.

Abstract: Thermoplastic materials may be functionalized and then blended with polyamides to form compatible products which contain a copolymer of the functionalized material and the polyamide.

Abstract: Thermoplastic blends of amorphous polyamide with a resin selected from the group consisting of polycarbonate, poly(ester-carbonate), and polyarylate have excellent physical properties.

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether sulfone(C) from 0.1 to 30% by weight of a polymeric component having hydroxyl groupsand in addition(D) from 0 to 50% by weight of a rubber impact modifier and(E) from 0 to 60% by weight of reinforcing fillers.

Abstract: A resin composition of the invention, exhibiting the anisotropism when melted, comprises (1) a resin having rigid structure and exhibiting the anisotropism when melted and (2) a resin having a rigid structure portion and a soft structure portion, both resins having been uniformly mixed with each other.

Abstract: Thermoplastic compositions of a polyamide with a thermoplastic polyester, polycarbonate, poly(ester carbonate) or polyarylate resin compatibilized with a polyamide-polyester block copolymer have excellent physical properties after molding and show no evidence of delamination.

Abstract: Thermoplastic blends of polyamide with at least one resin selected from the group consisting of polycarbonate, poly(ester carbonate) and polyarylate are compatibilized with an effective amount of a polyamide-polyarylate block copolymer and molded into articles having excellent physical properties with little or no evidence of delamination.

Abstract: Coating compositions suitable for use as coatings or inks for metallic foils, such as aluminum foil, as well as for use on other materials, such as papers and plastics resin films, are disclosed. These compositions comprise a water dispersable polyester resin, an alkylated amino resin and water. They may optionally include a pigment and other optional modifying ingredients. These compositions, being water-based, provide improved environmental compatibility and may be dried under relatively low temperatures without objectional ammonia residue odor.

Abstract: A compatibilizing agent for polymeric blends of polycarbonates and polyamides which have improved physical and chemical resistance properties, without any substantial sacrifice of the desirable properties of the polycarbonate or polyamide.

Abstract: A polyamide adhesive composition comprising 100 parts by weight of a polymer component and 0.1 to 5 parts by weight of an aminosilane compound. The polymer component comprises 50 to 99.5% by weight of a polyamide and 0.5 to 50% by weight of a modified polyolefin formed by grafting a polyolefin with an unsaturated compound having a polar group in the molecule and/or a polymer other than polyamides, having a polar group or an aromatic group and a tensile modulus not higher than 2,000 kg/cm.sup.2.

Abstract: This invention relates to a process for preparing a thermoplastic resin composition through a solid state polymerization process. The thermoplastic resin composition made in accordance with this invention is particularly suitable for use in thermoforming thin walled articles. The process of this invention specifically comprises (1) melt blending a polyethylene terephthalate prepolymer with at least one liquid crystalline polymer to produce a polyethylene terephthalate/liquid crystalline polymer blend; and (2) solid state polymerizing said polyethylene terephthalate/liquid crystalline polymer blend at a temperature within the range of about 195.degree. C. to about 255.degree. C. for a period of at least about 1 hour to produce a thermoplastic resin composition. The subject invention also deals with thermoforming such thermoplastic resin compositions into articles, such as food trays, having a crystallinity within the range of about 10% to about 40%.

Abstract: Described herein is the addition of polyhydroxyethers to blends of polyarylate and polyamide. The resulting blend results in significant increases in ultimate elongation, tensile strength, notched izod impact strength, tensile impact strength, and injection molded material uniformity.

Abstract: Disclosed are novel blends comprising segmented polyesteramides with minor amounts of carbodiimide containing materials.The blends are characterized by excellent physical properties and improved compression set characteristics over the polyesteramides in the absence of the carbodiimide component. This allows the polymers obtained to find utility in the making of seals or gaskets which heretofore the base polyesteramides could not satisfy.

Abstract: Copolycarbonates are prepared by ring-opening cyclic polycarbonate oligomers with various nucleophilic polymers. The latter include "living" anionic vinyl polymers; polymers such as polyphenylene ethers or hydroxyaryl-terminated polyimides which contain deprotonated hydroxy or carboxy groups; polymers containing neutral nucleophilic moieties, such as secondary amine-terminated polyimides, polyethersulfones and polyetherketones; and anionic polymers of ring-opened compounds such as cyclic polysiloxanes, lactams and lactones.

Abstract: Interpenetrating polymer networks prepared from 60 to 99.9% by weight, of a thermoplast and 0.1 to 40% by weight of a thermosetting resin which comprises:(a) at least one polycyanate and(b) from 1 to 40% by weight, based on (a), of at least one polyester having a hydroxyl number of from 28 to 320, a number average molecular weight M.sub.n of from 700 to 8000 and containing from 50 to 92%, by weight, of alcohol residues, acid residues, or both with each of said residues containing cycloaliphatic moieties.

Abstract: Heat-curable hot-melt enamels, a process for their preparation, and the production of highly heat-resistant wire windings. These heat-curable hot-melt enamels are solutions of a nylon in organic solvents, which contain, as the nylon, a nylon possessing functional amino groups and additionally contain a blocked di- or polyisocyanate. They are useful for the production of highly heat-resistant wire windings.

Abstract: A small component package employing a ring frame 11 of a mouldable polyamide-imide thermoplastic directly moulded onto a heat conducting base plate 10 with integral moulded anchoring pins of the thermoplastic material engaging corresponding bores 21 and 22 through the base plate. The other edge of the ring frame 11 is metalized as is the interface area 13 with a cover plate 12 of the same thermoplastic material for a soldered seal. Multiple solid electrical leads 17, 18, 19, 20 are moulded into the ring frame 11 during the base plate-to-ring from moulding operation to provide an inexpensive, sealed package which is also light in weight. Threaded inserts 14 facilitate a firm connection to an external heat sink surface along surface 10a of base plate 10.

Abstract: A crosslinked polyetherimide ester polymer comprised of the reaction products of:(i) at least one diol;(ii) at least one dicarboxylic acid or an ester forming derivative thereof;(iii) a set of reactants selected from(a) (1) at least one high molecular weight poly(oxy alkylene)diamine, and (2) at least one tricarboxylic acid or its derivative, or(b) at least one high molecular weight polyoxylene diimide diacid; and(iv) a crosslinking effective amount of at least one crosslinking agent.

Abstract: Resin bearing material consists essentially of at least one thermoplastic resin material selected from the group consisting of polyacetal, polyamide, polycarbonate, polyphenylene sulfide, polyethylene terephthalate, and ultra-high molecular weight polyethylene, and of aromatic group, polyamide fiber, and is produced by the steps comprising kneading and extruding said at least one thermoplastic resin material and the cutting the extruded material.The sliding characteristics are superior to the conventional oleo-bearing materials containing the carbon fiber, and glass fiber.

Abstract: A composition comprising a multilayer composite wherein a layer comprising an aromatic polyetherimide is adjacent to a layer comprising an aromatic polyester.

Abstract: Thermoplastic materials may be functionalized and then blended with polyamides to form compatible products which contain a copolymer of the functionalized material and the polyamide.

Abstract: Elastomers are prepared from high molecular weight relatively rigid difunctional compounds and low molecular weight aliphatic compounds selected from diacids, diols, diamines, hydroxyacids and aminoacids.

Abstract: Novel self-reinforced polymer composites of a base polymer with a melt processable liquid crystal polymer are prepared according to this invention. The base polymer is a flexible chain polymer, e.g. a conventional thermoplastic. Polycarbonate is a particularly suitable base polymer. The liquid crystal polymer is melt processable, that is, it has a melting point and exhibits anisotropic properties in the melt phase. Wholly aromatic copolyesters are particularly suitable. Mixing is carried out at a temperature at which both the base polymer and the liquid crystal are melt processable, i.e., at a temperature at which the base polymer flows readily and the liquid crystal polymer is above its melting point. The products of this invention comprise about 2 to 20 percent by weight of liquid crystal polymer, which is in the form of essentially unidirectionally oriented continuous fibers primarily in the range of about 1 to 10 micrometers in diameter, distributed in a matrix of the base polymer.

Abstract: Hydrolysis-stable, thermoplastic block polyetheresteramides are produced by a catalyzed polycondensation of linear, aliphatic polyamides having carboxyl end groups with .alpha.,.omega.-dihydroxypolyethers and additionally, a linear or branched, aliphatic or cycloaliphatic diol having 2-8 carbon atoms in an amount of 3-30 mol %, relative to the sum of the moles of both other starting materials. The ratio of the moles of the polyamide components to the sum of the moles of the dihydroxypolyether and diol components is 0.81 to 0.985.

Abstract: Disclosed is a magnet wire composition comprising the reaction product of a polyamide resin, a titanate catalyst, and a solvolytic agent admixed with a blocked polyisocyanate and hydroxylated polyester. Also disclosed is a method of applying such a magnet wire enamel to a magnet wire substrate and additionally disclosed is a method for making such magnet wire enamel.

Abstract: The detrimental effects of reinforcing fibers on the differential shrinkage and warpage characteristics of thermoplastic resins are substantially reduced by the incorporation of a silicone interpenetrating polymer network in fiber reinforced thermoplastic composites. High modulus (flexural modulus greater than 90,000 psi) thermoplastic matrices containing about 5 to 60 weight percent reinforcing fibers and 1 to 20 weight percent of a silicone IPN have reduced shrinkage and warpage and more isotropic mold shrinkage than conventional fiber reinforced thermoplastics, and are particularly useful in the melt forming of high tolerance parts, such as gears, as well as thin walled, variable thickness and thick cross section parts.

Abstract: A laminated film for packaging comprising an innermost layer and an outer layer laminated thereover which is suitable for the production of a container that may contain cosmetics and contents having flavoring ingredients while preserving the flavor thereof, wherein the innermost layer is formed with a polyester film obtained from a mixture of (1) a main resin component composed of a polyester resin with an average molecular weight of from 20,000 to 40,000 and (2) an auxiliary resin component selected from a polyamide and a polyester resin with an average molecular weight of from 5,000 to 20,000.

Abstract: This invention is concerned with a new class of thermoplastic polymer blends which comprise in admixture a polyterephthalatecarbonate, a polyetherimide and a polyester.

Abstract: A saturated linear polyester resin composition suitable for coating a metal for anti-corrosion and/or decorative purposes contains a polyol, a dibasic acid and from about 4 to about 12% by weight solids of a C.sub.16 to C.sub.18 carbon chain oil function in the form of a fatty acid or derivative thereof.

Abstract: Easily flowable, impact resistant polyamide moulding composition containing from 0.5 to 10%, by weight, of polyethers preferably modified with (meth)acrylate or primary amino end groups or of polyesters preferably containing (meth)acrylate end groups.

Abstract: Polyamide and poly(ester-amide) materials are melt-blended to give products having good flexibility at high and low temperatures. The blends are useful for potting, encapsulating, and adhesive applications.

Abstract: Novel block copolymers containing polyetherimide and polycarbonate segments are prepared from hydroxy terminated polyetherimide oligomers, a dihydric phenol and phosgene or a phosgene precursor. The segmented block copolymers exhibit improved toughness and are useful as engineering thermoplastics, alone, or in combination with other resins.

Abstract: Novel flame retardant elastomeric materials are prepared by admixing a polyetherimide ester and a halogenated flame retarding material. Optionally these compositions may further comprise a modifier resin selected from condensation polymers and addition polymers, flame retardant synergists and drip suppressant.

Abstract: A colored base composition comprising a dispersing amphoteric resin and pigment, said amphoteric resin being prepared by the addition or condensation reaction of an acidic resin bearing both of an electron acceptant group and a functional group and a basic resin and/or basic low molecular weight compound bearing both of an electron donative group and a functional group, the functional group located on one side of the reactants being an active hydrogen and/or active alkoxyl group and the functional group located on the other side of the reactants being a group which is reactive with said active hydrogen and/or active alkoxyl. This base composition is quite stable, compatible with various kinds of resins and pigments and capable of producing a paint composition with excellent film performance.

Abstract: Antistatic synthetic fibers composed of (A) a fiber-forming synthetic polymer and (B) a block copolymer containing a polyalkylene oxide component, the block copolymer (B) being incorporated in the polymer (A) substantially continuously along the fiber axis in the form of bands or a network.

Abstract: A heat resistant resin composition comprising (A) a polyamideimide resin soluble in a cresol type solvent obtained by using a lactam as a reactant, and (B) at least one member selected from the group consisting of a polyester resin, a polyesteramide resin, a polyesterimide resin and a polyesteramideimide resin, preferably heated for conducting a reaction, gives coatings excellent in heat resistance, thermal shock resistance, wear resistance, resistance to hydrolysis, crazing resistance, etc., suitable for enamelled wire.

Abstract: An ambient temperature curable composition is prepared from a .alpha.,.beta.-ethylenically unsaturated carbonyl compound (such as trimethylol propane triacrylate) and a compound chosen from a particular class of compounds having an activated CH group (such as malonate group-containing oligomeric or polymeric esters). The coatings of the invention cure quickly without heating, and have excellent hardness.

Abstract: A resin composition comprising(I) a granular or powdery resin which is a condensation product of a phenol, an aldehyde and optionally a nitrogen-containing compound having at least two active hydrogens and is characterized by (A) containing spherical primary particles and their secondary agglomerated particles each having a particle diameter of 0.1 to 150 microns, (B) having such a size that at least 50% by weight thereof can pass through a 100 Tyler mesh sieve, and (C) having a free phenol content, determined by liquid chromatography, of not more than 500 ppm, and(II) at least one member selected from the group consisting of (1) a rubbery elastic material, (2) a thermoplastic resin and (3) a curable resin other than said granular or powdery resin (I) and/or a filler material other than said granular or powdery resin (I).

Abstract: Aramid fiber is coated with certain sulfonyl azides to improve adhesion to polymer matrices.