Abstract: The invention relates to the use of radiation-curable resins based on ketone-aldehyde and urea-aldehyde resins.

Abstract: A composition of matter for a recording medium in atomic force data storage devices. The composition includes one or more poly(aryl ether ketone) copolymers, each of the one or more poly(aryl ether ketone) copolymers including (a) a first monomer including an aryl ether ketone and (b) a second monomer including an aryl ether ketone and a hydrogen bonding cross-linking moiety, the moiety capable of forming two or more hydrogen bonds at room temperature, each of the one or more poly(aryl ether ketone) copolymers having two terminal ends, each terminal end having a phenylethynyl moiety. The covalent and hydrogen bonding cross-linking of the poly(aryl ether ketone) oligomers may be tuned to match thermal and force parameters required in read-write-erase cycles.

Abstract: Radiation-curable resins containing a carbonyl-hydrogenated ketone-aldehyde and/or a ring-hydrogenated phenyl-aldehyde resins, and a process for preparing them.

Abstract: A resin composition comprises a resin component containing 40 to 99% by mass of a poly(aryl ketone) and 1 to 60% by mass of a poly(arylene sulfide), and 0.1 to 5 parts by mass, per 100 parts by mass of the resin component, of at least one thermosetting imide resin selected from the group consisting of a polyfunctional unsaturated imide compound and its thermoset product. The resin composition is improved in terms of compatibility, moldability or formability, melt flowability, mechanical properties, etc. while maintaining high levels of various properties such as heat resistance, flame retardancy, chemical resistance and dimensional stability.

Abstract: A thermoplastic resin composition comprising a blend obtainable by blending 0.1 to 99% by weight of (a) a fluorine-containing polymer having a number-average molecular weight of 2000 to 1000000 and having hydroxy group or epoxy group at least at one of end portions of a main chain and side chain of the polymer, and 1 to 99.9% by weight of (b) a heat resisting thermoplastic resin having a crystalline melting point or glass transition temperature of not less than 150° C. The present invention can provide a composition comprising various heat resisting thermoplastic resins and a fluorine-containing polymer having a functional group which is capable of developing an affinity with said resins and forming a uniform dispersion.

Abstract: The present invention refers to a polymeric optical film the polymer of the polymeric optical film consisting essentially of one or more polyarylates having repeating units represented by the general structure: wherein A represents one or more different bisphenolfluorene radicals having the general formula (I): wherein R1 and R2 independently represent an alkyl group, a halogen atom, an alkoxy group, an acyl group, a phenyl group or a nitrile group, with the proviso that R1 and R2 are not both an alkyl group; R3, R4, R5 and R6 represent a hydrogen atom, an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group, a nitro group, or a nitrile group, with the proviso that when R1 and R2 are both bromide atoms, at least one of R3, R4, R5 and R6 is different from hydrogen atom; B represents one or more different dicarboxy radicals having the formula: wherein X is a divalent aromatic hydrocarbon group having from 6 to 20 carbon atoms, and n is the number of the repeating units which build

Abstract: The invention provides chain extenders made from epoxy-functional (meth)acrylic monomers and styrenic and/or (meth)acrylic monomers. The invention further provides polymeric compositions made from the chain extenders and plastic articles made from the compositions. Finally, the invention provides methods of using the chain extenders to improve the properties of virgin, recycled, and reprocessed condensation polymers.

Abstract: The invention generally relates to thermoplastic blends having improved properties. Optionally, these blends may be dynamically vulcanized. More specifically, this invention is directed to a composition comprising a blend of chloromethylated(styrene-isobutylene) polymer and a thermoplastic resin selected from the group consisting of polyamides, polyesters, polycarbonates, polysulfones, polyacetals, polyacetones, acrylonitrile-butadiene styrene resins, polyphenylene oxide, polyphenylene sulfide, styrene-acrylonitrile resins, styrene-maleic anhydride resins, polyamides, aromatic polyketones, ethylene vinyl alcohol polymer and mixtures thereof. Tires and tire components such as air permeation prevention films comprising these compositions are also provided.

Abstract: The invention generally relates to thermoplastic blends having improved properties. Optionally, these blends may be dynamically vulcanized. More specifically, this invention is directed to a composition comprising a blend of chloromethylated(styrene-isobutylene) polymer and a thermoplastic resin selected from the group consisting of polyamides, polyesters, polycarbonates, polysulfones, polyacetals, polyacetones, acrylonitrile-butadiene styrene resins, polyphenylene oxide, polyphenylene sulfide, styrene-acrylonitrile resins, styrene-maleic anhydride resins, polyamides, aromatic polyketones, ethylene vinyl alcohol polymer and mixtures thereof. Tires and tire components such as air permeation prevention films comprising these compositions are also provided.

Abstract: A melt processable polymer composition that comprises a thermoplastic non-aliphatic host polymer and a minor but effective amount of a fluoropolymer processing aid, and a method of improving the melt processability of the host polymer are provided.

Abstract: The invention relates to a mixture, containing A) a polymer, which consists to an extent of at least 40 wt % of C1-C18 alkyl (meth)acrylates (referred to herein as polyacrylates) and B) a homopolymer or copolymer of vinyl alkyl ether (referred to herein as polyvinyl alkyl ether), which consists, to an extent of at least 70 wt %, of structural units of the following formula, in which X stands for a single bond or a C1-C3 alkyl group and R for a C1-C6 alkyl group.

Abstract: In the resin-molded articles comprising polyolefin resins (a) and thermoplastic resins other than the polyolefin resins (b), when thickness is defined as one along a direction vertical to the surface of the article, as morphology observed under an electron microscope in the article, a portion where the polyolefin resin (a) forms a continuous phase (A), a portion where the resin other than the polyolefin resin (b) forms the continuous phase and the polyolefin resin (a) forms a discontinuous phase (B), and a portion where the polyolefin resin (a) forms the continuous phase (A) are successively observed in order from the surface toward the inside along the thickness direction, such molded articles having nature such as toughness and fabrication quality inherent to the polyolefin resins and improved appreciably in resistance to permeation of liquid chemicals and gases.

Abstract: The invention pertains to an aqueous cross-linkable polymer composition comprising: W a) a water-soluble first polymer comprising acid groups, which is at least partially neutralized with a volatile base; b) a dispersion of a substantially water-insoluble second polymer, which comprises carbonyl-functional groups, which may be produced by emulsion polymerization in the presence of an aqueous solution of the first polymer; c) a cross-linking agent which can react by condensation with the carbonyl-functional groups of the second polymer; and d) a water-soluble, amine-functional third polymer.

Abstract: Self-crosslinking aqueous coating compositions are disclosed comprising a water-dispersible alkyd having both sulfonate and acetoacetate functionality, a suitable bi- or poly-functional primary amine, and a monofunctional primary or cycloaliphatic secondary amine. The crosslinking of the composition includes oxidative curing via the fatty acid segments of the alkyd, and crosslinking via reaction between the acetoacetate groups of the alkyd and the primary amine groups of the polyfunctional amine. The aqueous alkyd systems disclosed do not require the presence of amines for the purpose of dispersing the alkyds, while exhibiting superior tack-free and through-dry times when used in coating compositions. Performance levels are achieved that heretofore had required increases in molecular weight and Tg, with a concomitant increase in VOC levels. Also disclosed are methods of making the inventive compositions.

Abstract: This invention provides method of producing a polymer which comprises substitution of carboxylic acid group for a terminal halogen group of a polymer obtainable by atom transfer radical polymerization. The carboxylic acid group may be a carboxylic acid salt group, more preferably a carboxylic acid potassium salt group. In carrying out the atom transfer radical polymerization in the practice of the invention, a transition metal complex can be used as a polymerization catalyst. The transition metal complex may be a transition metal complex with an element of the group 7, 8, 9, 10 or 11 of the periodic table as the central atom, more preferably a copper, nickel, ruthenium or iron complex and, in particular, a copper complex is used. The polymer obtainable by atom transfer radical polymerization is obtained by polymerization of a (meth)acrylic monomer, particularly the polymer obtained by polymerization of an acrylic acid ester monomer.

Abstract: The present invention refers to an optical film comprising one or more polyarylates having at least some units represented by the general structure: wherein A represents one or more different bisphenolfluorene radicals having the general formula (I):  wherein R1 and R2 independently represent an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group or a nitrile group, with the proviso that R1 and R2 are not both an alkyl group; R3, R4, R5 and R6 represent a hydrogen atom, an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group, a nitro group, or a nitrile group; B represents one or more different dicarboxy radicals having the formula:  wherein X is a divalent hydrocarbon group having from 1 to 20 carbon atoms, and n is the number of the repeating units which build up the polymer and is a positive integer higher than 20.

Abstract: There is provided a radiation-curable coating composition containing oligomers that each have two end groups X1 and X2, wherein the end groups X1 and X2, which may be the same or different, are a photoinitiator group or an adhesion promoter group. The coating composition may exclude the presence of non-reactive photoinitiator groups and non-reactive adhesion promoter groups, each of which would fail to covalently bond itself to an oligomer backbone.

Abstract: Melt fabricable compositions of at least 50 wt % polytetrafluoroethylene are provided, wherein the composition contains polyaryletherketone and optionally part of the polytetrafluoroethylene is PTFE micropowder.

Abstract: A thermoplastic resin composition comprising a blend obtainable by blending 0.1 to 99% by weight of (a) a fluorine-containing polymer having a number-average molecular weight of 2000 to 1000000 and having hydroxy group or epoxy group at least at one of end portions of a main chain and side chain of the polymer, and 1 to 99.9% by weight of (b) a heat resisting thermoplastic resin having a crystalline melting point or glass transition temperature of not less than 150° C.

Abstract: The present invention refers to an optical film comprising one or more polyarylates having at least some units represented by the general structure: 1

Abstract: The invention generally relates to thermoplastic blends having improved properties. Optionally, these blends may be dynamically vulcanized. More specifically, this invention is directed to a composition comprising a blend of chloromethylated(styrene-isobutylene)copolymer and a thermoplastic resin selected from the group consisting of polyamides, polyesters, polycarbonates, polysulfones, polyacetals, polyacetones, acrylonitrile-butadiene styrene resins, polyphenylene oxide, polyphenylene sulfide, styrene-acrylonitrile resins, styrene-maleic anhydride resins, polyamides, aromatic polyketones, ethylene vinyl alcohol copolymer and mixtures thereof. Tires and tire components such as air permeation prevention films comprising these compositions are also provided.

Abstract: A thermoplastic composition which may be unvulcanized or vulcanized is provided which comprises a polymer blend of an elastomeric thermoplastic engineering resin and a halogen-containing copolymer of a C4 to C7 isomonoolefin and a para-alkylstyrene. A process for preparing a dynamically vulcanized composition is also provided.

Abstract: A multi-component curable composition which is reactive upon admixing of the components and which comprises: (i) an acrylic polymer having acetoacetoxy functionality; and (ii) an acetoacetoxy functional derivative of a low molecular weight polyol; and (iii) a crosslinking component comprising at least one imine functional compound having an average of at least two imine groups per molecule which are reactive with acetoacetoxy functionality.

Abstract: Melt fabricable compositions of at least 50 wt % polytetrafluoroethylene are provided, wherein the composition contains polyaryletherketone and optionally part of the polytetrafluoroethylene is PTFE micropowder.

Abstract: A composition for anti-reflective coating material is disclosed, comprising a polymer compound having repeating units having specific structure, and optionally a melamine, guanamine, urea, phenol, naphthol or hydroxyanthracene compound substituted by at least one group selected from the group consisting of a methylol group and an alkoxymethyl group at two or more positions. The composition for anti-reflective coating material of the present invention is effective for the reduction of adverse effects of reflection by the substrate in a lithographic process using various radiations. A resist pattern formation process which comprises the use of the composition for anti-reflective coating material is also disclosed.

Abstract: Compositions of melt-flowable fluoroplastic and poly(ether ketone ketone) are provided, wherein the either the fluoroplastic or the poly(ether ketone ketone) is the matrix polymer and the other polymer is the dispersed phase, to provide improved properties to the matrix polymer.

Abstract: A solid support template for solid phase synthesis of amino group containing compounds is provided that comprises amino-ketone core compounds of the general formula:A-L-NH(CR.sub.1 R.sub.2).sub.n COR.sub.3linked to appropriate insoluble substrates to create solid support templates having the general formula:Polymer-X-L-NH(CR.sub.1 R.sub.2).sub.n COR.sub.3where L is a multifunctional monomer carrying a first functional group that forms a covalent bond with X and a second functional group comprising an amine and L, R.sub.1, R.sub.2 and R.sub.3 are selected from the group consisting of alkyl, alkyl-aryl, alkenyl, alkenyl-aryl groups having up to 6 carbon atoms and substituted forms thereof. The amino-ketone templates are useful for the solid phase synthesis of compounds such as the imidazoles, benzodiazepines, pyrazines, and steroid mimics.

Abstract: Resins AB which are dilutable in water following neutralization and have an acid number of from 25 to 160 mg/g, obtainable by reacting mass fractions, based in each case on the sum of the masses of the solids in the reaction mixture, of A from 30 to 90% of at least one acid-functional polymer selected from polyesters, dimerized and oligomerized unsaturated aliphatic carboxylic acids and polymers of olefinically unsaturated monomers, each having an acid number of from 30 to 240 mg/g, and B from 10 to 70% of at least one water-insoluble aldehyde resin or ketone resin obtainable by condensing ketones, ketones together with aldehydes, ketones with urea or aldehydes with urea, having a hydroxyl number from 20 to 300 mg/g, a softening point of from 60 to 140.degree. C. and a number-average molar mass of from 500 to 3000 g/mol.

Abstract: A copolymer comprising:(a) from 10 to 70% by moles of ethylene,(b) from 30 to 90% by moles of a fluorinated monomer selected from tetrafluoroethylene, chlorotrifluoroethylene, or their mixtures,(c) from 0.1 to 30% by moles, with respect to the total amount of monomers (a) and (b), of a hydrogenated monomer having the formula:CH.sub.2 =CH--(CH.sub.2).sub.n --R.sub.1 (I)where R.sub.1 =--OR.sub.2, --(O).sub.t CO(O).sub.p R.sub.2 with t and p as integers: t=0 or 1 and p=0 or 1 and R.sub.2 is a hydrogenated radical from 1 to 20 carbon atoms C.sub.1 -C.sub.20, branched and/or linear alkyl and cyclo-alkyl radical or R.sub.2 is H. The R.sub.2 radical may optionally contain: heteroatoms preferably Cl, O, N; one or more functional groups, preferably chosen among OH, COOH, epoxide, ester and ether; and double bonds. The n subscript is an integer number between 0 and 10.

Abstract: Desirable thermoplastic vulcanizates can be prepared from a polar engineering thermoplastic; a halogenated copolymer of p-alkylstyrene and an isomonoolefin having from 4 to 7 carbon atoms; and either an ethylene rubbery polymer or a diene based rubbery polymer or combinations thereof. The ethylene rubbery polymer desirably has at least one pendant carboxylic acid group, amine group, epoxy group, hydroxyl group or an anhydride of two carboxylic acid groups or combinations thereof. Desirable diene based rubbery polymers include epoxidized natural rubber and epoxidized homopolymers and copolymers of dienes.

Abstract: This invention provides the composition, preparation, and end-use of waterborne crosslinking technology based compositions prepared from water-based latexes. The invention provides a water-based latex comprising dispersed, waterborne amino-functional polymer particles; dispersed, waterborne pendant-functional polymer particles; and water. The waterborne pendant-functional polymer comprises at least one pendant amine reactive functional moiety selected from the group consisting of carbonate, epoxide, isocyanate, isopropenyl, carboxylic acid, and allyl groups. In a preferred embodiment, a latex of the invention comprises dispersed, waterborne polymeric (polyamino)enamine (PPAE) particles; dispersed, waterborne pendant-functional polymer particles; and water. The PPAE is the reaction product of a surfactant-stabilized acetoacetoxy-functional polymer (SAAP) and a poly(alkylenimine).

Abstract: A thermoplastic composition which may be unvulcanized or vulcanized is provided which comprises a polymer blend of an elastomeric thermoplastic engineering resin and a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene. A process for preparing a dynamically vulcanized composition is also provided.

Abstract: Low melt viscosity polytetrafluorethylene (PTFE), i.e. having a melt viscosity of 50 to 1.times.10.sup.5 Pa.multidot.s at 372.degree. C., is combined with non-fluorinated thermally stable polymer such as polyarleneetherketone to provide melt-fabricability application for the low MV PTFE and provide improved properties for the thermally stable polymer.

Abstract: A water-in-oil dispersed ink comprising:(A) a water-insoluble dispersion medium comprising 20% by weight--50% by weight of a water-insoluble polar solvent of an aromatic alcohol and/or an aliphatic glycol phenyl ether, 0.5% by weight--5.0% by weight of a water-insoluble organic amine, and 3% by weight--30% by weight of an oil-soluble dye, all percentages being based on the total weight of the ink; and(B) a particulate dispersion phase including a dispersion stabilizing phase comprising a polyhydric alcohol that is formed on the surface of dispersed particles, the particulate dispersion phase comprising 20% by weight--50% by weight of the polyhydric alcohol, and a water-based dispersoid comprising 3% by weight--20% by weight of water, 0.3% by weight--2.0% by weight of a cross-linking acrylic acid polymer, and 0.5% by weight--4.0% by weight of triethanol amine, all percentages being based on the total weight of the ink, and wherein the dispersed particles are uniformly dispersed in the dispersion medium.

Abstract: A curable resin composition comprises a compound containing a primary hydroxyl group and a compound containing a ketone group, in which the compound containing the ketone group is a compound in which at least one of the carbon atoms adjacent to the carbonyl carbon bonds to a hydrogen atom, and the curable resin composition can give a cured product having a high crosslink density by means of a dehydrating reaction between the primary hydroxyl group and the ketone group and the subsequent crosslinking of a vinyl bond formed by the dehydrating reaction.

Abstract: A method for producing a hydroxyl-terminated (meth) acrylic polymer which comprises converting a halogen atom in a terminal structure of the general formula (1)--CH.sub.2 --C(R.sup.1)(CO.sub.2 R.sup.2)(X) (1)wherein R.sup.1 is hydrogen or methyl, R.sup.2 is alkyl containing 1 to 20 carbon atoms, aryl containing 6 to 20 carbon atoms or aralkyl containing 7 to 20 carbon atoms, and X is chlorine, bromine or iodine, of a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer using an organic halide or a halogenated sulfonyl compound as an initiator and, as a catalyst, a metal complex with a central metal selected from the elements belonging to the groups 8, 9, 10 and 11 in the periodic table, into a hydroxyl-containing substituent.The present invention can provide, in an easy and simple manner, a (meth)acrylic polymer which is hydroxyl-terminated at both ends in a high proportion and which has been difficult to produce in the prior art. It can give a cured product with good curing characteristics.

Abstract: Provided are allyl-functional polymers having pendant enamine moieties and preferably also possessing pendant methacrylate groups. The presence of such groups in the polymer allows for a free-radical crosslinking reaction to take place during film formation and provides coatings having superior solvent resistance. Amino-containing waterborne particles can be prepared by reacting propylene imine with carboxylic acid-containing latexes. The amino-functionalized latexes are subsequently reacted at room temperature with for example acetoacetoxyethyl methacrylate. During ambient and thermal cure studies, clear films exhibited significant increases in solvent resistance, gel fraction, and crosslink density.

Abstract: An air-curing composition is disclosed which contains an acetoacetate functional polymer and an end-blocked polyformaldehyde chain. The composition is stable to reaction until the formaldehyde is released from the polyformaldehyde chain.

Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.

Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.

Abstract: Catalytic solids based on titanium trichloride complex, usable for the stereospecific polymerisation of alpha-olefins, obtained by heat treatment, in the presence of a halogenated activating agent, of the liquid material resulting from bringing TiCl.sub.4, pretreated with an electron-donor compound, into contact with a composition (C) corresponding to the general formulaAlR.sub.p (Y).sub.q X.sub.3-(p+q)in whichR represents a hydrocarbon radical or a hydrogen atom;Y represents a group chosen from --OR', --SR' and --NR'R", in which R' and R" each represent a hydrocarbon radical or a hydrogen atom;X represents a halogen;p is an arbitrary number such that 0<p<3; andq is an arbitrary number such that 0<q<3;the sum (p+q) being such that 0<(p+q).ltoreq.3.These catalytic solids of controllable porosity permit the production of a wide range of propylene polymers, in particular the propylene and ethylene copolymers known as "block" copolymers.

Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.

Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.

Abstract: A porous composite sheet is prepared from a mixture of polytetrafluoroethylene particulates and liquid crystal polymer particulates. The liquid crystal polymer in the porous composite sheet can be in the form of particulates contained within a polytetrafluoroethylene microstructure, or formed into a network of liquid crystal polymer fibers contained within and attached to the polytetrafluoroethylene microstructure. The porous composite sheet can be used as a self-reinforced porous sheet, for example, as a filter media. The pores of the composite sheet can be at least partially filled with polymeric resins and the composite sheet laminated to form useful electronic assemblies such as printed circuit boards and the like.

Abstract: The present invention provides a resin composition which is lowly water-absorbent and is excellent in properties such as mechanical strength, flexibility and heat resistance while improving the compatibility of the conventional resin composition comprising a polyamide resin and a thermoplastic polyester resin, and which comprises 100 parts by weight of a mixture composed of:(A) 10 to 90% by weight of a polyamide resin having a molar ratio of the terminal carboxyl group to the terminal amino group of 1.5 or more, and(B) 90 to 10% by weight of a thermoplastic polyester resin, and incorporated therein, and(C) 0.1 to 10 parts by weight of a vinylic copolymer comprising 40 to 99% by weight of a specified vinyl monomer and 60 to 1% by weight of a specified vinyl monomer having a glycidyl ester group.

Abstract: This invention provides the use and preparation of certain 2,2'-diacetyl-bisacetoacetates and bis(beta-ketoesters). These compounds are useful in coating formulations as crosslinkers in conjunction with polyester, acrylic and/or other hydroxylated resins to provide coatings that cure at about 100.degree. and 175.degree. C. Certain combinations of these crosslinkers and resins cure at unusually low temperatures and provide films with good combinations of flexibility, hardness and adhesion.

Abstract: An epoxy resin composition used for sealing of semiconductor devices, comprising as essential components:(A) an epoxy resin containing 50-100% by weight, based on total epoxy resin amount, of an epoxy compound represented by formula (I) ##STR1## wherein R.sub.1 to R.sub.8, which may be the same or different, are each an atom or group selected from the group consisting of hydrogen atom, halogen atoms and alkyl groups,(B) a phenolic resin curing agent containing 30-100% by weight, based on total phenolic resin curing agent amount, of a phenolic resin curing agent represented by formula (II) ##STR2## wherein R is paraxylylene group or a residual group which is obtained by removing two hydrogen atoms from dicylopentadiene, a terpene, cyclopentane or cyclohexane, and n is an integer of 0 to 4,(C) an inorganic filler, and(D) a curing accelerator.

Abstract: The thermoplastic resin composition containing a fluorine-containing elastomer, which is produced by incorporating a base-treated fluorine-containing elastomer into a thermoplastic resin and has a base-treated fluorine-containing elastomer content of 0.1 to 50% by weight, the composition being excellent in impact resistance and heat resistance and useful for producing various products in the fields of aviation, machinery, office machines, electricity and electronics.

Abstract: Polymer alloys which comprise (A) at least one cycloolefin polymer and (B) at least one polyaryl ether ketone, the amounts of (A) being 1 to 99% by weight and those of (B) being 99 to 1% by weight and relatively making up 100% by weight, with respect to the total alloy, are described. Such polymer alloys can be used as a matrix material for composite materials or for the production of shaped articles.

Abstract: Process for making a polymer with desired groups Y comprising reacting a precursor polymer having carbon- or nitrogen-bound --NH.sub.2 and/or --NH-- groups with at least one compound having a single enolic carbonyl group and at least one group Y. Also the polymer itself and a composition containing it.