Electrically conductive polymer compositions, processes and polymers useful for preparing the polymer compositions

New electrically conductive polymer compositions comprise i) an electrically conductive polymer a) of one or more oxidatively polymerizable aromatic compounds and ii) a polymer d) having ammonium, phosphonium or sulfonium groups in the polymer chain(s). The polymer compositions comprising polymers a) and d) are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer b) having ammonium, phosphonium or sulfonium groups in the polymer chain(s) and containing a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer b) which has a non-metallic anionic complex such as S 2 O 8 2- is also novel.

Electrically conductive polymer composition

New electrically conductive polymer compositions comprise i) an electrically conductive polymer a) of one or more oxidatively polymerizable aromatic compounds and ii) a polymer d) having ammonium, phosphonium or sulfonium groups in the polymer chain(s). The polymer compositions comprising polymers a) and d) are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer b) having ammonium, phosphonium or sulfonium groups in the polymer chain(s) and containing a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer b) which has a non-metallic anionic complex such as S 2 O 8 2- is also novel.

Ion-exchange resins and processes for preparing them

Novel ion-exchange resins have a polymeric matrix and functional groups of formula I The resins are prepared by reacting a corresponding resin having corresponding functional groups terminating in -NHR¹ with HC(O)R² and (R³)₂SO₃ or (R³)₂S₂O₅. Intermediates corresponding to the resins of formula I in which SO₃ is replaced by OH are also novel.

Ion exchange resin beads and processes for preparing them

The ion exchange resin beads have functional groups of formula I wherein R¹, R², R³, R⁴, m, r and q have the meanings stated in Claim 1 and which have a matrix of a cross-linked polymer wherein the level of cross-linkages is decreased in the shell area as compared to the core area. These ion exchange resin beads are prepared by reacting resin beads which have primary or secondary amino groups and the mentioned matrix of a cross-linked polymer with a1) a hypophosphite salt in the presence of an acid, or a2) a hypophosphorous acid and b) formaldehyde or a formaldehyde releasing compound.

Resins and processes for preparing them

The resin has a polymeric matrix and functional groups of formula I wherein the radicals have the meaning stated in claim 1. The resin is prepared by reacting a corresponding resin having functional groups of formula II with HC(O)R 2 and (R 3 ) 2 SO 3 or (R 3 ) 2 S 2 O 5 . The resin is useful for reducing the concentration of alkaline earth or transition metal ions in a solution.

Electrically conductive polymer compositions, processes and polymers useful for preparing the polymer compositions

ABSTRACT Electrically conductive polymer compositions are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer. The polymer comprises a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer which has a non-metallic anionic complex such as S2O82- is novel.

ION EXCHANGE RESINS AND METHOD FOR THE PRODUCTION THEREOF.

Low foaming paper surface sizing composition

The present invention refers to a paper surface sizing composition comprising a copolymer having: a) structural units derived from ethylenically unsaturated hydrocarbons; structural units derived from monomers selected from esters of ethylenically unsaturated mono-carboxylic acids, half-esters of ethylenically unsaturated dicarboxylic acids, allylethers and vinylethers and mixtures thereof; optionally c) structural units derived from ethylenically unsaturated monomers selected from monocarboxylic acids as well as salts and amides thereof, dicarboxylic acids as well as salts, amides and half-amides thereof, and cyclic anhydrides and imides of dicarboxylic acids and mixtures thereof; and optionally d) structural units derived from alkyl or amino-substituted alkyl acrylates or methacrylates with the proviso, that if no structural units c) are present, the structural units b) are derived from monomers selected from half esters of ethylenically unsaturated dicarboxylic acids.

Conjugated polymers

ABSTRACT CONJUGATED POLYMERS A cross-linked conjugated polymer contains carbon-nitrogen linkages wherein nitrogen atoms are covalently bound to a cross-linking group and on the average one cross-linking group is bound to more than one nitrogen atom. C-39,911

Ion exchange resin beads and processes for preparing them

The ion exchange resin beads have functional groups of formula I wherein R1, R2, R3, R4, m, r and q have the meanings stated in Claim 1 and which have a matrix of a cross-linked polymer wherein the level of cross-linkages is decreased in the shell area as compared to the core area. These ion exchange resin beads are prepared by reacting resin beads which have primary or secondary amino groups and the mentioned matrix of a cross-linked polymer with a1) a hypophosphite salt in the presence of an acid, or a2) a hypophosphorous acid and b) formaldehyde or a formaldehyde releasing compound.

Polycarbonates

Process for preparing an aminomethylphosphonic chelating resin

Aminomethylphosphonic chelating resins are prepared by amination, hydrolysis and methylphosphonation of haloalkylated polymer beads. The amination of the haloalkylated polymer beads is carried out with hexamethylenetetramine. The produced haloaminated beads are hydrolysed and methylphosphonated in one step without addition of a substantial amount of formaldehyde or a formaldehyde-releasing compound.

Electrically conductive polymer compositions, processes and polymers useful for preparing the polymer compositions

Electrically conductive polymer compositions are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer. The polymer comprises a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer which has a non-metallic anionic complex such as S2O8<2><-> is novel.

ION EXCHANGE RESINS AND METHOD FOR THE PRODUCTION THEREOF.

Process for preparing an aminomethylphosphonic chelating resin

Aminomethylphosphonic chelating resins are prepared by amination, hydrolysis and methylphosphonation of haloalkylated polymer beads. The amination of the haloalkylated polymer beads is carried out with hexamethylenetetramine. The produced haloaminated beads are hydrolysed and methylphosphonated in one step without addition of a substantial amount of formaldehyde or a formaldehyde-releasing compound.

Electrically conductive polymer compositions, processes and polymers useful for preparing the polymer compositions

Electrically conductive polymer compositions are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer. The polymer comprises a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer which has a non-metallic anionic complex such as S2O8<2><-> is novel.

Procedimiento para escindir compuestos de eteres alifaticos.

SE DISOCIAN COMPUESTOS DE ETERES ALIFATICOS HACIENDOLOS REACCIONAR CON HALOGENUROS DE ACIDO EN PRESENCIA DE UN CATALIZADOR ACIDO LEWIS. LOS ESTERES ALIFATICOS TIENEN AL MENOS UN ATOMO DE HALOGENO EN UNA POSICION BETA RESPECTO AL ATOMO DE OXIGENO. SE OBTIENEN LOS CORRESPONDIENTES ESTERES Y HALOGENUROS QUE TIENEN LOS ATOMOS DE HALOGENO -BETA SIN REACCIONAR.

Processo para clivagem de um composto de eter alifatico e processo para produzir um diester de um glicol alifatico vicinal

Fremgangsmaate for fremstilling av elektrisk ledende polymerer og polymermaterialer.

Elektrisk ledende polyjnermaterialer fremstilles ved oksydativ polymerisering av en eller flere aromatiske forbindel- ser i nærvær av en polymer b). Polymer b) har ammonium- fosfonium- eller sulfonium-grupper i polymerkjeden(e) og omfatter et polydentat anionisk kompleks som har et redoks- potensiale som er tilstrekkelig til å muliggjøre oksydativ polymerisering av de aromatiske forbindelser. Polymer b) er i form av fine partikler som har en gjennomsnittlig størrelse på 5 nm til l mm. Polymer b) kan fremstilles in situ. Det oppnås et polymermateriale som inneholder den elektrisk ledende aromatiske polymer og den reduserte form av en polymer b). Det elektrisk ledende polymermateriale har en partikkel- sterrelse på 5 nm til l mm. Nevnte polymer b), som har et ikke-metallisk anionisk kompleks, f.eks. S2O82~, er ny.

Foerfarande foer framstaellning av elledande polymerer och kompositioner innehaollande dessa polymerer.