Abstract: Thermoplastic blends of polyamide with a resin selected from the group consisting of polycarbonate, poly(ester-carbonate), and polyarylate have improved physical properties with the incorporation therein of an epoxy functional compatibilizing 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 fand 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: 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 injection molding resin-type printed wiring board having an electric circuit pattern layer formed integrally on the surface thereof and having reduced warpage. In the printed circuit board, the injection molding resin includes a thermoplastic resin composition essentially comprising polyethylene terephthalate and containing a flaky inorganic reinforcing material. The inorganic reinforcing material comprises single-substance fine mica flakes or a mixture of fine mica flakes and short glass fibers.

Abstract: A process for producing cyanoethyl derivatives of hydroxyethylated polybenzimidazole is provided. The process comprises the steps of preparing an hydroxyethylated polybenzimidazole solution, mixing with that solution a base with a pka of at least 9 to form an hydroxyethylated polybenzimidazole anion and reacting the anion with acrylonitrile to produce a cyanoethyl derivative of the hydroxyethylated polybenzimidazole polymer. The derivative can be formed into ultrafilters, ion exchange membranes and for other such separatory articles.

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: Blends of polyamide polyols and urethane diols are prepared by reacting alkyl (methyl) esters of polybasic acids (preferably dibasic acids) with excess alkanolamine (preferable ethanol amine propanol amine) to form the polyamide polyol of the polybasic acid and alkyl alcohol. The alkyl alcohol is removed and the excess ethanolamine is reacted with ethylene or propylene carbonate to form the urethane diol. This blend of urethane diol and polyamide polyol is useful in various polymer formulations.

Abstract: A polymer blend containing a polycarbonate and a siloxane-polyetherimide copolymer. The blends of the invention have improved impact strength, particularly thick section impact strength, over the unmodified polycarbonates. In addition the blends have good physical properties, relatively low flammability and are resistant to environmental stress cracking and crazing.

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 method for the preparation of polycarbonate resins bearing terminal hydroxy ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula: ##STR1## wherein R represents alkylene of 1 to about 12 carbons. The novel product resins are useful as intermediate in the preparation of copolymers with, for example, polyesteramides.

Abstract: A method for the preparation of polycarbonate resins bearing terminal ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula: ##STR1## wherein R represents a hydrocarbyl group amenable to beta-elimination upon thermolytic degradation. The product resins are useful as intermediates in the preparation of copolymers with, for example, polyamides.

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 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: Thermoplastic molding materials based on(A) nylons and(B) polycarbonates, and containing 0.1-30% by weight of(C) a polymer containing hydroxyl groups, --OH.The molding materials have good surface characteristics and high impact strength, especially at low temperatures.

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: 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: Thermoplastic molding composition comprising amorphous polyamide and polycarbonate resin blends exhibit improved impact resistance by addition of a polyamide-polyether block copolymer.

Abstract: Discoloration in aromatic carbonate polymers brought about by the addition of halogenated flame retardants is counteracted by the further addition of aliphatic polyester.

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: A composition comprising a polycarbonate polydiorganosiloxane random block copolymer reinforced with an effective reinforcing amount of a polymeric aromatic amide in a physical form which achieves reinforcement.

Abstract: The invention provides a substituted polybenzimidazole product produced by employing a cyclic carbonate to attach hydroxyalkyl substituents at the reactive imidazole hydrogen sites on the polybenzimidazole polymer. The substituted polybenzimidazole polymer membranes produced by this process exhibit improved hydrophilicity and chemical stability over prior art polybenzimidazole membranes. Substituted polybenzimidazole polymer ultrafilters produced by this process filter a broad range of molecular weight compounds.

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: A polycarbonate polymer composition rendered flame retardant by having combined these with an effective amount of a phosphorus-containing polyester polymer which is the polycondensation product of a glycol, phthalate and a phosphine oxide of the formula: ##STR1## wherein R.sub.1, may be the same or different radicals selected from the group consisting of hydrogen and methyl radicals and R.sub.2 is a radical of 2 to 8 carbon atoms.

Abstract: This invention relates to moldable polycarbonate compositions and in particular to moldable polycarbonates which have ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS) and 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A) dihaloformate, or ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) dihaloformate and a bisphenol compound such as 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A). Such polycarbonate exhibit improved hydrolytic stability and also excellent processability in molding applications.

Abstract: Secondary amine-terminated aromatic oligomers are prepared by conventional reactions for the formation of such polymers as polyimides, polyethersulfones and polyetherketones, using such compounds as methylamino or phenylamino anilines or phenols as endcapping agents. The secondary amine-terminated oligomers may be reacted with cyclic polycarbonate oligomers to prepare copolyurethanecarbonates which are useful as engineering thermoplastics.

Abstract: A mixture of a basic thermoplastic and of a more orientatable and crystallizable reinforcing polymer is extruded through a nozzle of an extruder or of an injection molding machine, and these molten elements have a temperature in the nozzle of about the melting temperature of the polymer, to at most 10.degree. C. thereabove.The reinforced polymer product presents excellent strength properties.

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: 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: Unfilled, unreinforced polyamide moulding compounds are disclosed which have high rigidity and notched impact strength and are highly fluid in the molten state, containing aliphatic polycarbonate polyurethanes which are substantially unbranched in the carbon chain, prepared from polyhexamethylene carbonate diols and/or mixtures thereof with oligo- or polyalkylene glycols having 4-100 carbon atoms and 1,6-diisocyanatohexane.

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: 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: The invention is a block copolymer useful in the preparation of polyurethanes. The polyether polycarbonate block copolymer comprises(a) the residue of a hydrocarbon or a hydrocarbyloxy hydrocarbon compound containing 3 or more functional groups with active hydrogens;(b) an alkylene polyether, polyamine, polyamide, polyaromatic carbonate, polyester, aromatic polyether, polyimide, polysulfide, polysulfone or polysaccharide block wherein such block is bonded to the residue of each active hydrogen-containing functional group; and(c) a polyether polycarbonate block which comprises ether and carbonate ether units arranged in random order, wherein the polyether polycarbonate blocks are bonded to the blocks defined in (b).

Abstract: This invention provides a process for modifying a polybenzimidazole polymer which involves employing ethylene carbonate as a hydroxyethylating agent to introduce 2-hydroxyethyl substituents at active imidazole hydrogen sites in the polymer. The polymer product exhibits improved hydrophilicity.

Abstract: Siloxane norbornane imide bisphenols are provided and method for making such materials. The siloxane-imide norbornane bisphenols can be used to make a variety of siloxane-imide organic block polymers useful as high performance thermoplastics.

Abstract: This invention relates to moldable polycarbonate compositions and in particular to moldable polycarbonates which have ordered alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS) and 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A) dihaloformate, or ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) dihaloformate and a bisphenol compound such as 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A). Such polycarbonates exhibit improved hydrolytic stability and also excellent processability in molding applications.

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: An anti-corrosive sealing tape comprising a first layer which exhibits conductivity and is prepared by adding fine zinc powder, magnesium oxide and graphite powder to a rubber base; e.g., a butyl rubber containing curing agents and a second layer which plays a role of reinforcing the first layer with imparting waterproofing or thermal insulating properties thereto. This tape will protect metal pipes or structural members against corrosion when wrapped around them.

Abstract: Disclosed are blends of (a) a polyetherimide and (b) a thermoplastic polycarbonate. The blends exhibit a higher heat distortion temperature and an improved flexural strength and tensile strength over the polycarbonate component alone and have a higher impact strength than that associated with the polyetherimide component of the blends. In addition, the blends may exhibit good flame resistance.

Abstract: The present invention relates to thermoplastic moulding compositions of (A) thermoplastic polycarbonates, mixed with (B) thermoplastic polyalkylene terephthalates and, if appropriate, with (C) elastomeric polymers, which are characterized in that they contain (D) a thermoplastic based on a polyether-imide.

Abstract: A new process for foaming cellulose acetate rods consists of blending the cellulose acetate with a suitable plasticizer, a nucleating agent, cyclic ethylene carbonate, and a co-reactant for the ethylene carbonate and extruding into a foamed rod. Suitable co-reactants include aromatic diol polyesters, polycarbonates, and poly(ester-carbonates) and monomeric or polymeric materials containing the ##STR1## group, which have melting or flow points of less than about 250.degree. C.

Abstract: A polyamide co-polymer polyol made by the reaction of a dicarboxylic acid diester with a diamine in the presence of a polyether polyol is described. The nylon formed should be present in the polyol in an amount of from 1 to 30 wt. %. The polyether polyol may have a molecular weight of about 2,000 to 8,000. This polyamide co-polymer polyol may be used in the manufacture of elastomers and flexible polyurethane foams which are characterized by good load bearing properties.

Abstract: Novel thermoplastic compositions are disclosed which comprise blends of:(a) a polyester-carbonate resin; and(b) at least one polymer selected from the group consisting of (i) polyamides, (ii) polyimides, (iii) polyamideimides, and (iv) mixtures thereof.

Abstract: Disclosed are blends of (a) a polyetherimide and (b) an organopolysiloxane - polycarbonate block copolymer. Such blends exhibit a good combination impact strength and flexural properties particularly at relatively high proportions of polyetherimide, and elastomeric behavior at relative high concentrations of the block copolymer of organopolysiloxane and polycarbonate.

Abstract: Polymers and oligomers of the formula ##STR1## are useful as ultraviolet light stabilizers for various polymers, especially polyolefins.

Abstract: Novel, finely divided, redispersible dispersions of high melting polyesters in low melting polyhydroxyl compounds are disclosed. Disclosed also is a process for their preparation and their use as polyol components containing fillers in the production of cellular or non-cellular polyurethanes.

Abstract: A heat-curable and solvent-soluble ester group-containing polymer composition is prepared by the steps of:(1) either (i) reacting a highly polymerized linear aromatic polyester with a diaryl carbonate to depolymerize it to a solvent-soluble low-molecular-weight polyester (component A) containing terminal aryl carboxylate groups, or (ii) effecting the above depolymerization in the presence of a compound containing at least two specified functional groups thereby to form a modified solvent-soluble low-molecular-weight polyester (component A') containing terminal aryl carboxylate groups; and(2) either (i) mixing the resulting component A or A' with a monomeric or solvent-soluble polymeric, polyfunctional compound (component B) containing at least two hydroxyl and/or primary or secondary amino groups or (ii) partially reacting the resulting component A or A' with the component B. The composition has superior workability in molding and curing, and gives cured molded products of high utilitarian value.

Abstract: This invention relates to stable suspensions of substantially monomer-free, insoluble, powdered tolylene diisocyanate distillation residues in polyhydroxyl compounds, to a process for producing these suspensions and to the use of the suspensions thus produced as the polyol component in the production of optionally foamed polyurethane plastics.