Abstract: Novel polyamide copolymers having skeletons of a specific structure are disclosed. The polyamide copolymers have excellent resistance to hydrolysis, low temperature characteristics (low temperature softness), heat aging resistance and mechanical properties as compared to conventional polyamide copolymers. The polyamide copolymers also show excellent efficiencies in fabrication properties and transparency. In particular, the polyamide copolymers having a branched structure in the molecule thereof provide good results.

Abstract: The invention relates to blends of polyether copolycarbonates and other thermoplastics, to their production and to their use for the production of membranes, more particularly for dialysis.

Abstract: Intimate blends of macrocyclic oligomer compositions, such as cyclic polycarbonate or poly(alkylene dicarboxylate) oligomer mixtures, are blended with linear polymers, especially addition polymers. The blends flow easily and are frequently homogeneous. The macrocyclic oligomers therein may be polymerized to produce resin blends having advantageous properties.

Abstract: Thermoplastic blends of a polyamide having low amine end-group concentration and a polymer containing ester or carbonate linkages. The blends are useful in providing molded parts having improved properties such as improved impact strength.

Abstract: Polymer films are formed by electrocodeposition of solutions containing a dispersion of charged particles of a first polymer and charged particles of a second polymer. Microheterogeneous films are obtained having micro-domains of a minor component polymer dispersed in the major component polymer. Processes for preparing dispersions for electrocodeposition are also provided In a first process, two polymers are dissolved in a common solvent and then dispersed as small charged particles in another solvent which is a precipitant for both polymers. In another process, a dispersion of a first polymer is prepared by adding a solution of the first polymer to a dispersant solvent, and then a solution of a second polymer is dispersed in the dispersion of the first polymer. In another process, a solution of the second polymer is added to a dispersion of the first polymer which contains only a single non-solvent for the second polymer.

Abstract: The present invention provides resin compositions containing thermoplastic resins. Thermoplastic resins employable for the compositions are polyolefin resins, polyester resins, polystyrene resins, polyamide resins and polyphenylene ether resins. The present invention can be particularly effected by using polyamide, particularly, specific aromatic polyamides.In the present invention, the resin compositions can be improved in various chemical and physical properties such as flame-retardance, moldability, color tone, heat stability, mechanical strength by the use of other resin component and stabilizers such as halogenated organic compounds, modified polyolefins, antimony compounds, phosphorus-containing compounds, amine- or phosphorus-type stabilizers.

Abstract: The invention relates to compatible blends of 94 to 10% by weight aromatic poly(ester) carbonates or polycarbonates, 5 to 70% by weight polyamides and 1 to 20% by weight ester-functional (meth)acrylate polymers and, optionally, elastomers in typical modifying quantities, to a process for the production of these blends and to their use for the production of moldings.

Abstract: Aromatic polyetherimides can be blended with aromatic alkyl methacrylate polymers to give transparent, single phase and completely miscible materials at all compositions. Such blends, which exhibit only one glass transition, are endowed with improved workability, ease of processing and toughness compared to the polyetherimide alone as well as improved heat distortion, modulus and tensile strength as compared to the methacrylate alone. Aromatic polycarbonates, which are ordinarily immiscible with aromatic polyetherimides, can be compatibilized into single phase blends after the addition of a polyaromatic alkyl methacrylate.

Abstract: Disclosed is an alternating block copolymer composition useful for enhancing the crystallization of bisphenol-A polycarbonate which comprises the reaction product of a polyoxyalkylene polyamine and poly(ethylene)terephthalate. Also disclosed is a method of synthesizing the alternating block copolymer and a method of using the block copolymer composition in the crystallization of bisphenol-A polycarbonate.

Abstract: The invention relates to compatible blends having good surfaces of aromatic polycarbonates or poly(ester) carbonates and polyamides and, optionally, graft polymers and typical additives with addition of polymers containing sulfonamide units as compatibilizers, to a process for the production of these blends and to their use for the production of moldings having good surface properties.

Abstract: The invention relates to polymer mixtures which comprise an aromatic polycarbonate, a polyester, and a thermoplastic elastomer. The polymer mixture comprises a polyester-ester urethane or a polyether imide ester as a thermoplastic elastomer. The polymer mixtures according to the invention have good flow properties.

Abstract: Novel amino acid-derived polycarbonates and amino acid-derived diphenol compound starting materials from which the polycarbonates are polymerized. Polymer blends of the amino acid-derived polycarbonates with polyiminocarbonates prepared from identical amino acid-derived diphenol starting materials.

Abstract: Flame retardant polyester compositions exhibiting good processability comprising at least one polyester resin and a flame retardant additive comprising a halogenated polycarbonate resin and an antimony compound in a polyetherimide ester elastomer resin carrier.

Abstract: A monoglycidyl stabilized polycarbonate and polyamide blend comprising a polycarbonate, a polyamide, a polymeric compatabilizing agent and a monoglycidyl compatabilizing agent is provided wherein the monoglycidyl stabilizer effectively end caps the polyamide without cross linking polymer chains. The polymeric compatabilizing agent comprises a polyetherimide, a polyurethane, a linear segmented thermoplastic elastomer having an ester segment and a hard segment of semi-crystalline, partially aromatic polyamide based on diphenylmethane diisocyanate, hydroxyl containing phenoxypolymers, polyamide-polyarylate block copolymers, polyamide-polyester block copolymers, or blends thereof. The polycarbonate and polyamide blend may further comprise an impact modifying agent or an alloying agent.

Abstract: A polycarbonate pellet having a size between 200 and 1,500 microns, not inclusive, is produced by extruding molten polycarbonate through a die and cutting such extrudate with a die face cutter.

Abstract: Disclosed is a process for the preparation of a thermoplastic polymer blend comprising a first preformed thermoplastic polymer such as a polyester, polycarbonate, ABS graft polymer and the like and a second thermoplastic polyamide or polyamideimide. The second polymer is prepared from a diisocyanate and polycarboxylic compund selected from a dicarboxylic acid, tricarboxylic acid or anhydride thereof, or mixtures of these components by reactively processing the monomer components in the presence of the first polymer.

Abstract: The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of the steps:(a) the reaction of a dihydroxy-terminated poly(aryl ether) oligomer with a high molecular weight polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylate-carbonate) to yield a block copolymer; followed by(b) the coupling of the material obtained in step (a) to the required molecular weight, using a diaryl ester of carbonic acid or of a dicarboxylic acid.Both steps are performed in the presence of a catalyst. The copolymerizations can be run in bulk under vacuum in a single or twin screw extruder. Using the above conditions high molecular weight, high quality block copolymers having a combination of excellent properties are obtained in a matter of minutes.

Abstract: Thermoplastic articles molded from amorphous polyamide and polycarbonate resin blends exhibit improved color when irradiated with ionizing radiation.

Abstract: A dicarbonyl halide preferably a straight-chain-alkyl dicarbonyl dihalide, may be used to activate a substrate surface of preferably polyurethane or polyamide. Optionally, an amine-end blocked polymer may be reacted with the resulting activated surface by reaction between amine and dicarbonyl halide groups. Then, a material to be covalently bonded to said surface, such as heparin, may be reacted with free amine groups bonded to the surface by a carbodiimide process or the like.

Abstract: Polycarbonate and polyarylate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein each R independently represents one of hydrogen or lower alkyl. The resins are reactive polycarbonates, poly(ester carbonates) and polyarylates, useful as intermediates in the preparation of block and graft copolymers, with other polymers having functional, reactive groups.

Abstract: Mixtures containinga) thermoplastic polycarbonates based on diphenols corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and c.sub.7 -C.sub.12 aralkyl,m is an integer of from 4 to 7,R.sup.3 and R.sup.4 may be individually selected for each X and independently of one another represent hydrogen or C.sub.1 -C.sub.6 alkyl andX represents carbon, with the proviso that, at at least one atom X, both R.sup.3 and R.sup.4 are alkyl, andb) elastomers or other thermoplastics than those of component a) and, optionally,c) standard additives,processes for their preparation, and the use thereof for the production of films.

Abstract: A polycarbonate resin, containing in the polymer chain at least one divalent moiety of the formula: ##STR1## wherein E is selected from the group consisting of alkylene containing from 1 to 15 carbon atoms, inclusive, and halogen-substituted alkylene containing from 1 to 15 carbon atoms, inclusive, a is an integer of 0 or 1 and R' is hydrogen or hydrocarbyl or halogen substituted hydrocarbyl amenable to beta elimination upon thermal degradation.

Abstract: The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of the steps:(a) the reaction of a dihydroxy-terminated poly(aryl ether) oligomer with a high molecular weight polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylate-carbonate) to yield a block copolymer; followed by(b) the coupling of the material obtained in step (a) to the required molecular weight, using a diaryl ester of carbonic acid or of a dicarboxylic acid.Both steps are performed in the presence of a catalyst. The copolymerizations can be run in bulk under vacuum in a single or twin screw extruder. Using the above conditions high molecular weight, high quality block copolymers having a combination of excellent properties are obtained in a matter of minutes.

Abstract: A composite material is comprised of an in situ polymerized rigid rod polymer and an in situ polymerized matrix polymer. The composite material is isotropic and has enhanced mechanical properties as well as improved temperature resistance, improved solvent resistance and improved moisture resistance.

Abstract: Blocked amine terminated polycarbonate is provided which can be used to form anhydride terminated polycarbonates, or copolymers with various functionalized organic polymers. A blocked amino phenol, such as N-t-butoxycarbonyl tyramine can be used as a chain stopper under interfacial conditions to chain stop polycarbonate. The t-butoxycarbonyl can be removed by melt processing the polycarbonate to yield an amine end group which can be reacted with other polymers or with an organic dianhydride to form anhydride terminated polycarbonate. The anhydride terminated polycarbonates can be used to form copolymers with amine terminated polyamides.

Abstract: Flame resistant polymer blends contain a polyetherimide and an impact strength-enhancing amount of a siloxane-polyetherimide copolymer and a solvent resistance-enhancing amount of a polycarbonate. These blends exhibit excellent impact strengths, high heat distortion temperatures, good solvent resistance, and amenability to blow-molding, injection molding and thermoforming operations. The blends are particularly suited to the manufacture of aircraft cabin interior components.

Abstract: This invention relates to novel compositions of a poly(imide) having phenylindane diamine and/or dianhydride moieties in the poly(imide) backbone and a polymeric component comprising:(a) a poly(etherimide) free of phenyl indane moieties in its backbone;(b) a poly(sulfone);(c) a poly(aryl ether ketone);(d) a poly(carbonate); or(e) a poly(arylate);and the compositions which have been cured. The compositions are useful as adhesives, coatings and matrix resins for fiber reinforced composites. The invention also relates to a multi-layered article for use in electronic devices, the article comprising a plurality of layers each comprising a cured composition of the invention with one or more intervening layers of conductive or semi-conductive material.

Abstract: A polyimide resin is prepared by polymerizing (A) a tetracarboxylic acid dianhydride component consisting essentially of 10 to 50 mol % of 2,2-bis(3,4-benzene-dicarboxylic anhydride)perfluoropropane and 90 to 50 mol % of pyromelitic dianhydride or similar acid dianhydride and (B) a diamine component consisting essentially of 10 to 80 mol % of a silicon diamine and 90 to 20 mol % of an ether diamine. The polyimide resin is soluble in ordinary organic solvents to form solutions which are readily applicable to substrates, typically providing insulating protective coatings on electronic parts.

Abstract: Aromatic polycarbonates having weight average molecular weight M.sub.w of at least 10,000 which contain bifunctional carbonate structural units corresponding to general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently represent hydrogen, C.sub.1 -C.sub.12 hdyrocarbon or halogen radicals; andR.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 independently represent hydrogen or C.sub.1 -C.sub.12 hydrocarbon radicals, one or R.sup.5 and R.sup.9 representing hydrogen and the other C.sub.1 -C.sub.12 hydrocarbon radical;in amounts of from 100 to 1 mole % based on the total amount of difunctional carbonate structural units in the polycarbonate were found to be useful for thermoplast processing of compositions which are characterized by their improved toughness and high heat deflection temperature.

Abstract: Thermoplastic blends ofA) 1 to 99% by weight of at least one thermoplastic aromatic polycarbonate which contains difunctional carbonate structural units of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are hydrogen, a C.sub.1 -C.sub.12 -hydrocarbon radical or halogen and R.sup.5, R.sup.6 and R.sup.7 independently of one another are H or a hydrocarbon radical, with the proviso that at least one of the radicals R.sup.5, R.sup.6 and R.sup.7 is a hydrocarbon radical, that when only one of the radicals R.sup.5, R.sup.6 or R.sup.7 is present as a hydrocarbon radical this is a C.sub.3 -C.sub.12 -hydrocarbon radical with the exception of C.sub.3 -C.sub.12 -n-alkyl, and that when two or three radicals R.sup.5, R.sup.6 and R.sup.7 are present as hydrocarbon radicals these are any C.sub.1 -C.sub.

Abstract: Described herein are amide and/or imide containing polymers based on novel monomers that contain isoalkylidene bridges. These polymers have excellent toughness combined with high temperature stability, low water absorption, and good melt-fabricability.

Abstract: Triazine compounds are prepared by the reaction of a bisphenol or a hydroxy-terminated polycarbonate with a chlorocyanurate containing epoxy and/or aromatic substituents. The compounds derived from bisphenols or protected bisphenols may be converted to polycarbonates, which form copolymers with other polymers containing acid or amine groups or derivatives thereof.

Abstract: Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: Foamed thermoplastic blends of Nylon 6,I/T and polycarbonate resin are provided which exhibit good chemical resistance. The foamed blends are useful for making foamed articles such as chemically resistant foamed sheet.

Abstract: Polycarbonate resins containing at least one divalent chain unit of the formula: ##STR1## are transitory cross-linkers prepared by thermal degradation of the corresponding acid esters (the ester group being removable under conditions of the degradation by a beta-elimination mechanism). Cross-linked polycarbonate resins exhibit enhanced fire-resistance, especially non-dripping. The cross-linkers are useful to cross-link any resin having a group reactive with a carboxyl group.

Abstract: Blends comprising from about 1 to about 99 percent by weight of a poly(aryl ether ketone co-carbonate) and from about 99 to about 1 percent by weight of a thermoplastic polymer selected from the group of a poly(aryl ether ketone), a poly(arylene sulfide), a poly(ether imide) or a poly(aryl ether).

Abstract: The invention relates to linear, thermotropic crosslinkable polymers, which comprises (A) polycondensing a complex dicarboxylic dichloride having the formula ##STR1## wherein Ar.sub.1 is ##STR2## Ar.sub.2 is ##STR3## Y is H, F, Cl, CN, phenyl, C.sub.n H.sub.2n+1, or OC.sub.n H.sub.2n+1, q is a cardinal number between 1 and 2, andn is a cardinal number between 1 and 4;provided that when X.sub.1 =OCO, then X.sub.2 =COO, when X.sub.1 =COO, then X.sub.2 =OCO, when X.sub.1 =NHCO then X.sub.2 =COHN, and when X.sub.1 =CONH then X.sub.2 =NHCO;(B) with an unsaturated dihydroxy oligomeric compound of the formula (III) ##STR4## present as an oligomer, where R.sup.1 is a linear, aliphatic, saturated, C.sub.2-12 moiety, or a C.sub.4-10 oxyaliphatic moiety;R.sup.2 is H or CH.sub.3 moiety; andm is a cardinal number between 1 and 4; at a mole ratio of from about 1:5 to about 5:1, at a temperature of from about 140.degree. C. to about 240.degree. C., for a time period from about 0.

Abstract: Polyamide-carbonate block copolymers are made by admixture of polyamides with carbonate polymers containing carboxyl groups or an ester groups capable of elimination to form carboxyl groups, in the presence of a polyepoxy linking agent, such as triglycidyl isocyanurate. Such block copolymers may be used as thermoplastics or as blending agents for polyamides and carbonate polymers.

Abstract: Polycarbonate resins containing at least one divalent chain unit of the formula: ##STR1## wherein E represents a trivalent hydrocarbon radical, or a trivalent halogen-substituted hydrocarbon radical, are transitory cross-linkers prepared by thermal degradation of the corresponding acid esters (the ester group being removable under conditions of the degradation by a beta-elimination mechanism). Cross-linked polycarbonate resins exhibit enhanced fire-resistance, especially non-dripping. The cross-linkers are useful to cross-link any resin having a group reactive with a carboxyl group.

Abstract: Carboxy-functionalized polycarbonates are prepared by incorporating a carboxylic acid-substituted phenol, preferably t-butyl p-hydroxybenzoate, as a chainstopper in a polycarbonate-forming reaction. The products are capable of forming copolymers with other polymers such as polyamides and functionalized olefin polymers, by generation of a carboxy group which reacts therewith.

Abstract: The invention relates to the use of thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether in quantities of 3% by weight to 30% by weight for modifying filsm of other thermoplastics than the thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether, to a process for modifying films of these other thermoplastics, to the films obtainable by this process and to mixtures containing the homopolycarbonates mentioned and the other thermoplastics.

Abstract: Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: Polycarbonate and polyarylate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein each R independently represents one of hydrogen or lower alkyl. The resins are reactive polycarbonates, poly(ester carbonates) and polyarylates, useful as intermediates in the preparation of block and graft copolymers, with other polymers having functional, reactive groups.

Abstract: Novel, well-defined thermoplastic block copolymers containing polyarylate and polyamide blocks. Preferably formed via a cycloaddition reaction of a polyamide having at least one terminal double bond, with a polyarylate having at least one dihydroarylcyclobutenyl moiety. They display excellent mechanical properties, improved UV, solvent and stress-crack resistance; good heat resistance and are easy to melt fabricate. They show good compatability with the corresponding homopolymers and are uniquely suited as compatibilizing agents for polyamide-polyarylate blends.

Abstract: Flame retardant aromatic polycarbonate compositions are provided resulting from the use of certain poly(arylene silicon) materials in combination with aromatic polycarbonates. Included among the poly(arylene silicon) materials are aromatic polyester silioxanes, aromatic polyimide siloxanes and aromatic polysilphenylenes.

Abstract: Disclosed are ternary blends of (a) a polyetherimide and (b) a polyarylate, an aromatic polyester which is derived from a dihydric phenol and a dicarboxylic acid and (c) a thermoplastic polymer selected from polycarbonates and aliphatic-aromatic polyesters which is compatible with the polyetherimide and the polyarylate. The blends exhibit a high heat distortion temperature and have a good degree of flame resistance.

Abstract: The present invention provides a novel epoxy resin-based curable composition suitable for use as an encapsulating resin composition for semiconductor devices capable of being highly resistant against crack formation with low internal stress by curing and yet having very high heat conductivity and maintaining high glass transition temperature. The inventive composition comprises (a) 100 parts by weight of a curable epoxy resin blend which is a mixture of an epoxy resin and a curing agent therefor, (b) from 5 to 100 parts by weight of a block copolymer composed of at least one segment of an aromatic polymeric moiety, phenyl novolac, and at least one segment of an organopolysiloxane moiety having 30 to 200 silicon atoms and bonded to the aromatic polymeric moiety through a carbon-to-silicon linkage, and optionally (c) an inorganic filler which is preferably a silica filler such as powdered quartz in an amount not exceeding 1000 parts by weight.

Abstract: A high impact polyamide composition comprising at least one polyamide, at least one ethylene ionomer resin and at least one oxide or carbonate compound is specific weight proportions, wherein the polyamide has a relative viscosity of at least 3.15 in 98% sulfuric acid. The composition may further comprise an elastomeric olefin copolymer, an elastomeric styrene copolymer and/or a polyvalent alcohol. The polyamide composition has excellent mechanical strength, thermal resistance and impact strength even at weld-line portions so that it can advantageously be employed for manufacturing various shaped articles, such as automobile parts and sporting goods.

Abstract: Described herein are miscible blends of polycarbonomides, defined as amide and/or imide containing polymers, and a polyarylate or arylate-carbonate copolymer which are useful in the manufacture of extruded sheets, high temperature connectors, aircraft and mass transportation vehicle interiors, injection molded articles, and extruded profiles and thermoformable articles.

Abstract: This invention discloses a process for the preparation of substituted polybenzimidazole polymers by reacting an unsubstituted polybenzimidazole polymer with a pyrocarbonate to produce an oxyformulated polybenzimidazole polymer. The oxyformulated polybenzimidazole polymer can be heated to convert it to an N-substituted polybenzimidazole polymer. Membranes, fibers and other products produced from the products of these reactions are highly resistant to chemical reactions with broad utility as fibers or membranes.