The present invention provides a membrane comprising a polyamine polymer. In another embodiment, the present invention provides an electrochemical cell comprising a membrane of the present invention; a positive electrode; and a negative electrode. In another embodiment, the present invention provides a composition comprising a polyamine polymer of Formula J, I or II.

A thermosetting resin composition containing: (A) an addition reaction product of a maleimide compound having at least two N-substituted maleimide groups in one molecule (a1) and an amine compound having at least two primary amino groups in one molecule (a2), (B) a thermoplastic elastomer, and (C) a copolymer resin having a structural unit derived from an aromatic vinyl compound and a structural unit derived from a carboxylic acid anhydride.

Compositions include a compound preparable by reaction of components comprising an optionally crosslinked polyethylenimine and at least one an amine-reactive hydrolyzable organosilane represented by the formula RZSiY.sub.3. R represents an amine-reactive group containing 1 to 18 carbon atoms; Z represents a divalent organic group containing 1 to 8 carbon atoms; and each Y independently represents a hydrolyzable group. Methods of using the compositions to make articles, and articles produces thereby are also disclosed. A composition comprising an intimate mixture of a crosslinked polyethylenimine and a polymeric binder material, and a method of making it is also disclosed.

Polymers bearing the following structural elements per molecule: (A) an average of at least two alkoxylated (poly)alkylenimine units, said alkylene being selected from C.sub.2-C.sub.10-alkylene and said alkoxylation being selected from ethoxylation, propoxylation, butoxylation and combinations of at least two of the foregoing, (B) at least one polysiloxane unit, and (C) at least one linkage connecting at least two different alkoxylated (poly)alkylenimine units (A) bearing at least one polysiloxane unit (B), each link-age (C) being selected from organic spacers bearing in the range of from 4 to 30 carbon atoms.

New polyamide-based, polyurea-based and polyphosphoramide-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have excellent electrochemical stability as anolytes in lithium battery cells.

An electroluminescent device with an improved luminous efficiency. The device includes a light emitting layer with an arylamine polymer including a structural unit (A) represented by Chemical Formula (1).

##STR00001##

A silicone-modified polybenzoxazole resin comprising repeating units of formulae (1a) and (1b) is prepared by addition polymerization. R.sup.1 to R.sup.4 are a C.sub.1-C.sub.8 monovalent hydrocarbon group, m and n are integers of 0-300, R.sup.5 is C.sub.1-C.sub.8 alkylene or phenylene, a and b are positive numbers of less than 1, a+b=1, and X.sup.1 is a divalent linker of formula (2). The resin is flexible, soluble in organic solvents, and easy to use. ##STR00001##

A polymer having a high refractive index and providing a molded product that has excellent solvent resistance; a triazine compound; a method for producing the triazine compound; a method for producing the polymer using the triazine compound; a non-photosensitive liquid composition including the polymer; a method for producing a molded product using the composition; a molded product of the composition; a film formed from the molded product; a microlens formed from the molded product; and an optical element including the microlens. A polymer including a unit having a specific structure in which an aromatic group having a hydroxy group protected with a tert-butoxycarbonyloxy group, a tert-butoxycarbonylamino group, or an acetal protecting group is linked to a triazine ring through a specific linking group.

This disclosure relates to antimicrobial compositions, and more particularly to treatment of surfaces (e.g., face masks) for the reduction or prevention of transmission of microbes (e.g., bacteria, fungus, and/or viruses). In some embodiments, the compositions comprise a cationic polymer selected from the group consisting of: a polydiallyldimethylammonium salt, a polyethyleneimine salt, a polydiallyldimethylammonium with different counter ions, a chemically modified polyethyleneimine salt, or a combination thereof.

A method of obtaining modified phthalonitriles comprising organophosphorus fragments, binding agents based thereon, and products produced with the use thereof, can be used in a variety of fieldsfrom aircraft and automobile manufacturing to producing polymer composite materials. The method makes it possible to produce phthalonitrile monomers comprising organophosphorus fragments from simpler and cheaper reagents and to obtain them as individual substances, simplifying the process of synthesis, reducing the glass transition temperature of monomers and increasing the thermal oxidation stability of hardened polymers. The phthalonitrile monomer modified with organophosphorus fragments is characterized by the following general formula:

##STR00001##

wherein R is a radical selected from the group comprising aryl, alkyl, aryloxy or alkyloxy substituents; and X is a divalent aryl substituent selected from a group comprising phenylenes and naphthylenes. Also disclosed is a method of obtaining the modified phthalonitrile monomer, a binder, and a prepreg based on the same.