Abstract: A method for recovering cyclic oligomers from a poly(arylene sulfide) polymer or poly(arylene sulfide) polymerization reaction mixture is provided in which the cyclic oligomers are maintained in a solution comprising a suitable solvent and the cyclic oligomers; then the solution is contacted with water to cause the formation of a suspension; then the suspension is acidified to cause the flocculation of cyclic oligomers which can then be more easily recovered.

Abstract: Novel polycyanate and polycyanamide compositions containing one or more rodlike mesogenic moieties, when cured, result in products having improved properties.

Abstract: This invention relates to thermally stable electrically conductive conjugated polymer complexes comprising a substituted or unsubstituted positively charged conjugated polymer doped with a dopant anion substituted with one or more anionic functionalities as for example a sulfonate or phosphonate functionalities, and substituted with one or more hydrogen bonding groups such as hydroxyl or carboxyl.

Abstract: Cross-linked epoxy resins having nonlinear optical properties may be used in nonlinear optical media. These cross-linked epoxy resins may have the following structure: ##STR1## Z.sup.1 and Z.sup.2 being NLO-chromophores.

Abstract: The invention provides copolymers having magnetic properties, said copolymers containing aminoaromatic groups, and being based on a structural unit comprising:a first group of aminoaromatic compounds chosen from aniline derivatives and the corresponding iminoquinone forms; anda second group of substituted aminoaromatic compounds chosen from substituted amino compounds containing at least two condensed benzene rings, substituted polycyclic compounds containing at least one aniline structural unit in their structure, compounds derived from aniline and carrying a substituent bonded to the ring by means of an ethynylidene or paraphenylene link, and the corresponding iminoquinone compounds.

Abstract: A semiconductive conjugated copolymer comprises at least two chemically different monomer units which, when existing in their individual homopolymer forms, have different semiconductor bandgaps. The proportion of said at least two chemically different monomer units in the copolymer is selected to control the semiconductor bandgap of the copolymer so as to control the optical properties of the copolymer. The copolymer is formed in a manner enabling it to be laid down as a film without substantially affecting the luminescent characteristics of the copolymer and is stable at operational temperature.The semiconductor bandgap may be spatially modulated so as to increase the quantum efficiency of the copolymer when excited to luminesce, to select the wavelength of radiation omitted during luminescence or to select the refractive index of the copolymer.

Abstract: Epoxy resins containing more than one vicinal epoxide group per molecule and at least one thiadiazole, oxadiazole or both thiadiazole and oxadiazole moiety per molecule are disclosed, as well as curable and cured compositions thereof. Certain of these epoxy resins possess enantiotropic liquid crystallinity. These enantiotropic epoxy resins are useful in preparing copolymers with high glass transition temperatures and liquid crystalline morphology, which can result in enhanced unidirectional mechanical properties. These epoxy resins are useful in coating, casting, encapsulation, electronic or structural laminate or composite, filament winding or molding applications.

Abstract: The present invention relates to self-doped conductive polyanilines and to a method of preparing them. The benzene and/or quinone rings of said polyanilines can be functionalized graft chains or substituents corresponding to the formula:--A--Zin which:A is a hydrocarbon radical having 2 to 8 atoms of carbon interrupted by at least 1 hetero atom; andZ is a strong acid function or a salt thereof.

Abstract: Sulfonated aniline-type copolymer and a process for their preparation are disclosed.These products comprise a water soluble and alcohol soluble copolymer of a compound (A) selected from the group of aniline, N-alkylaniline and phenylenediamine, and aminobenzene sulfonic acid (B); said sulfonated product being a following compound of a general formulae I to V stated in the specification, or a mixture thereof.Also, process for the sulfonated aniline-type copolymer comprises the steps:copolymerizing a compound (A) selected from the group of aniline, N-alkyl aniline and phenylene diamine, and aminobenzene sulfonic acid (B) to obtain a copolymer; andsulfonating the thus obtained copolymer with a sulfonating agent.

Abstract: A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

Abstract: The present invention relates to a hardener for polyfunctional epoxy resins comprising the adduct obtained from the reaction of (1) a diaminodiphenyl sulfone of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, C.sub.1 -C.sub.4 alkyl or halogen and (2) a cycloaliphatic diepoxide at a ratio of aminohydrogen equivalent of said sulfone to said epoxy equivalent of said diepoxide from 2.5:1 to 75:1.

Abstract: An arylene sulfide polymer having derivatized end-groups and a process for preparing derivatized arylene sulfide polymer comprising contacting at an elevated temperature, an arylene sulfide polymer, a compound having the formula ##STR1## wherein R' is selected from the group consisting of an alkyl radical having 1 to about 17 carbon atoms, an aryl radical having 6 to about 16 carbon atoms, and combinations thereof and X is selected from the group consisting of chlorine and bromine, and a solvent which is stable in the presence of the compound and is capable of dissolving the arylene sulfide polymer.

Abstract: Electroactive polymers are provided which contain alternating phenyl rings and nitrogen atoms, and which contain both quinoid mer units and benzenoid mer units. The polymers are formed by poly(condensation) of N-phenylhydroxylamine or derivatives thereof under anhydrous conditions in the presence of a Lewis acid catalyst. Methods for producing films, fibers and shaped articles of the polymers are provided as well.

Abstract: A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

Abstract: Epoxy resins containing more than one vicinal epoxide group per molecule and at least one thiadiazole, oxadiazole or both thiadiazole and oxadiazole moiety per molecule are disclosed, as well as curable and cured compositions thereof. Certain of these epoxy resins possess enantiotropic liquid crystallinity. These enantiotropic epoxy resins are useful in preparing copolymers with high glass transition temperatures and liquid crystalline morphology, which can result in enhanced unidirectional mechanical properties. These epoxy resins are useful in coating, casting, encapsulation, electronic or structural laminate or composite, filament winding or molding applications.

Abstract: This invention provides novel organosulfonimidates and a method for preparing both the present sulfonimidates and those disclosed in the prior art. Some of the sufonimidates can be condensed under relatively mild conditions to form polyorganooxothiazenes.

Abstract: Disclosed are glycidyl diamines having the formulas ##STR1## where n is 1 or 2, m is 0, 1, or 2, X is Y or ##STR2## and Y is --, O, S, SO, SO.sub.2, CO, C(CH.sub.3).sub.2, or C(CF.sub.3).sub.2. An epoxy resin can be made by mixing the glycidyl diamine with an epoxy curing agent. The epoxy resins can be used as adhesives or to make composites.

Abstract: Novel cyclic imino ether compositions containing one or more mesogenic moieties, when polymerized, result in products having improved properties.

Abstract: A process for preparing poly(arylene sulfide) with reduced metal contamination is produced by contacting a dihaloaromatic compound, a sulfur source, a polar organic compound, and an alkali metal carboxylate in a reaction vessel wherein at least the liquid contacting parts of the vessel are constructed of titanium. In another aspect of the invention a polymer produced by the above described process is provided.

Abstract: The present invention is directed to epoxy-based polymeric nonlinear optical materials in which a nonlinear optical active moiety or functionality forms the crosslink between polymer chains and a process for making the nonlinear optical (NLO) epoxy polymer including heating an epoxy resin and a curing agent such as a bi- or tri-functional aromatic amine containing an electron-withdrawing group, for example, diamino diphenylsulfone and poling the mixture under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical moieties in the polymer. The polymers have enhanced stability over polymers in which only one end of an NLO active moiety is attached to the polymer chain.

Abstract: The present invention is directed to an epoxy-containing polymeric material having nonlinear optical properties, particularly a glycidyl amine polymer, and a process for making the nonlinear optical (NLO) epoxy-containing polymeric material including poling the polymeric material under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical functionalities in the polymer. The polymers have enhanced thermal stability and good NLO properties.

Abstract: An arylene sulfide copolymer and a process for preparing same by contacting a mixture of two structurally different dihaloromatic compounds, at least one organic amide, at least one sulfur-containing compound, and water, and continuous long fiber reinforced plastics containing arylene sulfide copolymer as the polymer matrix or containing arylene sulfide copolymer in a thermoplastic resin matrix.

Abstract: This invention is directed to solid electrolytes containing a solid polymeric matrix derived from vinyl sulfonate polyalkylene oxides.

Abstract: A polymer having repeating units corresponding to the structure ##STR1## wherein R is selected from the group consisting of ##STR2## where z is 1, 2, 3, or 4, A is a divalent substituted or unsubstituted aromatic radical, y is in the range of 0.10 to 0 and x is in the range of 0.02 to 0.90 and n is at least 50.

Abstract: A pharmaceutical composition comprising a therapeutic agent, together with a polymeric delivery vehicle, the vehicle being made of poly(phosphoesters).

Abstract: Novel polyaniline derivatives soluble in general organic solvents are provided without impairment of the inherent good properties of the corresponding polyanilines. The novel polyaniline derivatives are polymers represented by the following formula (I): ##STR1## wherein Y means a group represented by the following formula: R.sub.1 CO--, R.sub.2 S--, R.sub.2 SO--, R.sub.2 SO.sub.2 -- or R.sub.5 --O--R.sub.4).sub.k OR.sub.3 --, R.sub.1 through R.sub.5 being particular substituent groups, k is an integer of 0-5, and n and m independently represent polymerization degree and are integers satisfying the following equations: m/(n+m)=0.01-1 and n+m=20-1000. They can each be produced by reacting a halide, which is represented by the following formula: Y-X wherein Y has the same meaning as described above and X means a chlorine or bromine atom, to a reduced polyaniline.

Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one rodlike mesogenic moiety are prepared by reacting one or more aminophenols containing one or more rodlike mesogenic moieties with a stoichiometric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.

Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one rodlike mesogenic moiety are prepared by reacting one or more aminophenols containing one or more rodlike mesogenic moieties with a stoichiometric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.

Abstract: An organic polymer ferromagnetic material characterized in that the material comprises a polymer obtained by subjecting to plasma polymerization or oxidation polymerization a methane derivative having two substituents and represented by the formula ##STR1## wherein A is an electron accepting group, and B is an electron donating group, or by copolymerizing the methane derivative with a diarylmethane derivative represented by the formula ##STR2## wherein R.sup.1 is a substituted or unsubstituted phenyl group by plasma polymerization or oxidation polymerization.

Abstract: A process for preparing poly(p-phenylene)s comprises reacting dihydroxy aromatic compounds such as orthoquinone and bisphenols with halogen-substituted aliphatic sulfonic acids, halogen sulfonic acid, or their anhydrides. The monomers thus formed are subsequently polymerized with Ni(0) catalysts to yield the desired polymers. The monomers or polymers may be functionalized with reactive groups.

Abstract: A polyarylsulphone is prepared by the polycondensation of a bisphenol with an aryl dichloride, at least one of which contains a sulphone group, in the presence of a base and introducing into the reaction mixture less than 5% mole, relative to the aryl dichloride, of 4,4'-difluorodiphenylsulphone. The bisphenol and aryldichloride can be of 4,4'-dihydroxydiphenylsulphone and 4,4'-dichlorodiphenylsulphone respectively. The difluoro compound is added when the polymerisation is essentially complete. The polymer product if of improved quality.

Abstract: Alpha-morpholino subunits and polymer compositions composed of alpha-morpholino subunits are disclosed. These subunits can be linked together by uncharged linkages, one to three atoms in length, joining the morpholino nitrogen of one subunit to the 5' exocyclic carbon of an adjacent subunit. Each subunit contains a purine or pyrimidine base-pairing moiety effective to bind by hydrogen bonding to a specific base or base-pair in a target polynucleotide. The polymers of the present invention can be used in place of standard RNA or DNA oligomers for a number of standard laboratory procedures, for example, as probes in solid-phase systems and nucleic acid hybridization analyses. Further, the polymers of the present invention have potential use as therapeutic agents in anti-sense-type technologies.

Abstract: This invention provides novel organosulfonimidates and a method for preparing both the present sulfonimidates and those disclosed in the prior art. Some of the sulfonimidates can be condensed under relatively mild conditions to form polyorganooxothiazenes.

Abstract: A method for preparing polyimides comprising reacting carbon monoxide, a primary diamine and a reactant selected from the group consisting of bis(o-iodoaromatic ester)s and bis(o-bromoaromatic ester)s, in the presence of solvent and catalyst, said catalyst being a compound of a metal seIected from the group consisting of platinum, palladium and nickel.

Abstract: Energy polymerizable compositions comprising at least one cyanate monomer and as curing agent an organometallic compound are disclosed. The compositions are useful in applications requiring high performance, such as high temperature performance; in composites, particularly structural composities; structural adhesives; tooling for structural composities; electronic applications such as printed wiring boards and semiconductor encapsulants; graphic arts; injection molding and prepregs; and high performance binders.

Abstract: A method for preparing poly(imide-amide)s comprising reacting carbon monoxide, an aromatic or heteroaromatic diamine, and an aromatic or heteroaromatic di(trifluoromethane sulfonate), in the presence of solvent and a catalyst One of the aromatic reactants has a nucleus including a phthalimide ring system. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.

Abstract: The invention relates to polyarylene ethers which contain, based on the total amount of structural elements present in the polyether resin, 5-100 mol % of a recurring structural element of the formula I ##STR1## and 0-95 mol % of a recurring structural element of the formula II ##STR2## in which X and X' independently of one another are --SO--, --SO.sub.2 -- or --CO--, one of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups and the remaining radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen, (C.sub.1 -C.sub.4)alkyl, phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups, and A is an aromatic radical, at least 25% of the bonds X and/or Y and/or the bridge members contained in A being --SO.sub.2 --.These industrial materials are distinguished by very good mechanical properties and good solubility.

Abstract: A method for preparing polyamide comprising reacting carbon monoxide and the reactant pair ##STR1## wherein --Ar.sup.1 -- and --Ar.sup.2 -- are each independently selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 30, in the presence of solvent and a catalyst. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.

Abstract: Sulfonic acid-substituted polyaniline compositions, ammonium salts thereof, and uses therefor are disclosed. The ammonium salts of the sulfonic acid-substituted polyaniline compositions are used as interim materials in the processing of conducting sulfonated polyaniline compositions. The ammonium salts of the sulfonic acid-substituted polyaniline compositions are also used to either reversible or irreversible NH.sub.3 filters, sensors, temperature indicators and the like.

Abstract: This invention provides polyorganooxothiazenes exhibiting levels of molecular weight and properties not heretofore achieved by similar polymers reported in the prior art. The sulfonimidates that are condensed to form the polymers are prepared using a novel reaction between an N-triorganosilylsulfonamide and a triorganodihalophosphorane to form the corresponding N-triorganosilylsulfonimidoyl halide that is subsequently reacted with a fluorinated alcohol or phenol to form the N-triorgano-silylsulfonimidate.

Abstract: An arylene sulfide polymer having derivatized end-groups and a process for preparing derivatized arylene sulfide polymer comprising contacting at an elevated temperature, an arylene sulfide polymer, a compound having the formula ##STR1## wherein R' is selected from the group consisting of an alkyl radical having 1 to about 17 carbon atoms, an aryl radical having 6 to about 16 carbon atoms, and combinations thereof and X is selected from the group consisting of chlorine and bromine, and a solvent which is stable in the presence of the compound and is capable of dissolving the arylene sulfide polymer.

Abstract: A method for preparing aromatic polyester comprising reacting carbon monoxide, a diol, and an aromatic trifluoromethane sulfonate reactant having the general formula ##STR1## in the presence of solvent and a catalyst. Ar is selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 30. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.

Abstract: Epoxy resin formulations having improved storage stability comprising epoxys selected from the group consisting of polyglcidyl ethers of polycyclic bridged hydroxy-substituted polyaromatic compounds and N,N,N',N'-tetraglycidyl-bis(4-amino-3-ethylphenyl) methane with from about 6 to about 150 pbw, per hundred parts by weight of the epoxy resin components, of a solid aromatic diamine hardener insoluble in said composition at room temperature in an amount effective to cure said epoxy resin.

Abstract: Hydroxy-functional poly(ether sulfonamides) prepared by polymerizing an N,N'-dialkyl or N,N'-diaryldisulfonamide with a diepoxide in the presence of a suitable catalyst exhibit high barrier properties. These are suitable for use in the manufacture of articles such as rigid containers and flexible films exhibiting high barrier to oxygen.

Abstract: A method for the preparation of poly(benzoxazole)s, poly(benzimidazoles)s, and poly(benzthiazole)s. In the presence of solvent and catalyst, reacting carbon monoxide, an aromatic halide reactant having the general formula X.sup.1 --Ar.sup.1 --Z.sup.1 and an aromatic amine reactant having the general formula Z.sup.2 --Ar.sup.2 --M.sup.1, wherein X.sup.1 and Z.sup.1 are non-ortho, Z.sup.2 and M.sup.1 are non-ortho, one of Z.sup.1 and Z.sup.2 is X.sup.2 and the other one is M.sup.2, --Ar.sup.1 -- and --Ar.sup.2 -- are each independently selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 20, X.sup.1 and X.sup.2 are each independently selected from the group consisting of --I and --Br, and M.sup.1 and M.sup.2 are each independently selected from moieties having an --NH.sub.2 radical and, ortho to the --NH.sub.2 radical, a radical selected from the group consisting of --NH.sub.2, --OH, and --SH.

Abstract: A composition for absorbing electromagnetic radiation (such as microwave, infrared, visible light radiation ultraviolet radiation), wherein said electromagnetic radiation possesses a wavelength generally in the range of from about 1000 Angstroms to about 50 meters, wherein said composition comprises a polyaniline composition of the formula ##STR1## where y can be equal to or greater than zero and R' and R.sub.2 are independently selected from the group consisting of --H, --OCH.sub.3, --CH.sub.3, --F, --Cl, --Br, --I, --NR.sup.3.sub.2, --NHCOR.sub.3, --OH, --O, --SR.sup.3, --OR.sup.3, --OCOR.sup.3, --NO.sub.2, --COOH, --COOR.sup.3, --COR.sup.3, --CHO, and --CN, where R.sup.3 is a C.sub.1 to C.sub.a alkyl, aryl or aralkyl group.

Abstract: An arylene sulfide sulfone/sulfoxide polymer and a process for preparing same by contacting at least one dihaloaromatic sulfone, at least one dihaloaromatic sulfoxide, at least one organic amide, at least one sulfur-containing compound, and water.

Abstract: Self-prontonated sulfonic acid-substituted polyaniline compositions, processes for their preparation and uses therefor are disclosed. The sulfonated polyaniline compositions have faster electronic and optical responses to electrochemical potentials comparing to its parent polyaniline, improved environmental stability, and improved solubility than the parent polymer, polyaniline. A process for producing the sulfonated polyaniline compositions comprises reacting the polyaniline polymer with concentrated sulfuric acid. The sulfonated polyaniline compositions are useful for switching an electrochemical response between a conducting and a nonconducting state. The sulfonated polyaniline compositions are also useful for conduction of electricity, absorption of electromagnetic radiation, modulation of electromagnetic beams and modification of the electromagnetic response of sulfonated polyaniline compositions by chemical or electrochemical means.

Abstract: Aliphatic polyesters of 3,4'-biphenyldicarboxylic acid and optionally 4,4'-biphenyldicarboxylic acid are prepared by contacting at least one aliphatic diol having from 2 to 12 carbon atoms with a lower alkyl diester or phenolic diester of 3,4'-biphenyldicarboxylic acid and, optionally, a lower alkyl diester or phenolic diester of 4,4'-biphenyldicarboxylic acid, in the presence of a catalyst at about 180.degree. to about 300.degree. C. These polyesters are suitable for use in making fibers, films, three dimensional molded articles, barrier containers and coatings.

Abstract: An electrically conducting self-doped carbazole polymer of the formula: ##STR1## wherein A is a bifunctional molecule capable of bonding to a positively charged molecule at one end and is capable of bonding to a flexible spacer group Z at another end, Z is a flexible spacer group capable of bonding to an anionic group A at one end and is capable of bonding either to a nitrogen or aromatic electron withdrawing or electron donating group at another end, E is a bifunctional molecule capable of bonding to nitrogen at one end and is capable of bonding to a flexible spacer group Z at anther end, X is a positively charged counterion, and n is at least 2.