Abstract: This invention relates to new phosphorus-containing duromers of oligophosphites and epoxides or bisacrylates or unsaturated polyesters.

Abstract: Polyphosphazene derivatives containing carbonyl groups and variously alkylated tertiary aminic groups, suited to undergo rapid and efficient photo-crosslinking processes and having general formula: ##STR1## wherein: X represents substituents linked to the polyphosphazene chain by means of hydroxylic or aminic functions and containing carbonyl groups;X' represents additional substituents linked to the polyphosphazene chain by means of hydroxylic or aminic functions and containing one or more variously alkylated tertiary aminic groups;(w+y+z) is an integer ranging from 20 to 15,000;w and z are integers having a value higher than or equal to zero and at any rate lower than 15,000;y is an integer having a value of from 20 to 15,000.

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

Abstract: The invention relates to poly(phosphoesters), compositions comprising the poly(phosphoesters), and methods of use.

Abstract: Process for the preparation of polyaromatic compounds in which an aromatic dichloro compound, optionally in the presence of an anhydrous aprotic solvent, is reacted with metallic zinc, manganese or magnesium in the presence of a catalyst system of(1) from 0.1 to 25 mol-% (based on the dihalogen compound) of a nickel salt, nickel complex salt or nickel complex,(2) from 2 to 100 mol per mol of nickel in (1) of a triarylphosphine and optionally(3) from 0.1 to 10 mol per mol of nickel (1) of a halide, sulphate or phosphate of an alkali metal, alkaline earth metal, zinc, magnesium or manganese.

Abstract: Phosphazene polymers having the units ##STR1## wherein the total number of units ranges from about 3 to about 50,000, R.sub.1 and R.sub.2 are different and are C.sub.1 to C.sub.12 linear or branched alkyl, C.sub.2 to C.sub.15 linear or branched fluoroalkyl or mixtures thereof, and R.sub.3 is phenyl substituted with C.sub.1 to C.sub.12 linear or branched alkyl. The polymers can be cured with peroxides to yield cross-linked materials having enhanced elongation.

Abstract: A polyether-ester block copolymer, and filaments formed therefrom, having an enhanced thermal stability of the elastic property thereof and a satisfactory dyeing property, comprises a polymerization product of (A) an acid component comprising as a major ingredient, terephthalic acid, (B) a phosphonium sulfate component comprising a compound of the formula (I): ##STR1## wherein Z.sub.1 =tri- or more valent aromatic or aliphatic group, A.sub.1 =ester-forming group, A.sub.2 =H or ester-forming group, R.sup.1, R.sup.2, R.sup.3, R.sup.4 =alkyl or aryl radical and n=a positive integer, (C) a polymeric glycol component comprising a polyoxyalkylene glycol having an MW of 400 to 6000 and (D) a monomeric glycol component comprising, as a major ingredient, 1,4-butane diol, in which the copolymer component (B) is in an amount of from 0.

Abstract: Polyphosphazene derivatives containing carbonyl groups which are apt to undergo rapid photoreticulation processes having the general formula ##STR1## in which: X represents substituents bound to the polyphosphazene chains by means of hydroxy or amino functions, and containing carbonyl groups;X' represents additional substituents bound to the polyphosphazene chain through hydroxy or amino functions and containing one or more easily extractable hydrogen atoms;(w+y+z) is an integer between 20 and 15,000;w and z are integers greater than or equal to 0 and always lower than 15.000;y is an integer between 20 and 15,000.

Abstract: Various kinds of organophosphazene polymers are produced by reacting dichlorophosphezene polymer with hydroxy compounds using a tertiary amine such as triethyl amine as an acid acceptor in the presence of pyridine derivative such as 4-dimethylaminopyridine as a catalyst under mild reaction conditions to substitute substantially all the chlorine atoms with organic groups.

Abstract: The present invention relates to hardenable mixtures containing:(i) a polyglycidyl ether or ester based on an aliphatic, cycloaliphatic or aromatic alcohol or a corresponding carboxylic acid and(ii) a hardener obtainable by reaction of:(A) a mixture of 2-4 mol of a monohydric, aliphatic alcohol and 1 mol of phosphorus pentoxide in an inert organic solvent, or of 2 mol of a dialkyl phosphate or of 2 mol of phosphoric acid, if appropriate in combination with 1-2 mol of a monohydric, aliphatic alcohol, with(B) 0.5-1.5 mol of a diglycidyl ether based on a cycloaliphatic or aromatic diol,with the proviso that the said diglycidyl ether used for the preparation of the hardener has an average molecular weight (number-average) of not more than 2,500 and the said hardener is essentially free from 1,2-epoxide groups.The hardenably mixtures are suitable in particular for the production of coatings.

Abstract: A non-water dispersible, oxirane-defunctionalized, etherified, phosphoric acid ester of an epoxy resin is useful in enhancing the adhesion of aqueous thermosetting coating compositions useful as a varnish or white coating for drawn and ironed aluminum containers. The epoxy resin ester is prepared by reacting(a) an epoxy resin having an epoxy equivalent weight of at least about 190;(b) orthophosphoric acid in an amount of 0.2 to 0.45 equivalents per equivalent of epoxy resin;(c) at least about 0.65 equivalents, per equivalent of epoxy resin, of a reactive hydroxyl-functional compound having at least one hydroxyl group reactive with an oxirane group of said epoxy resin, said hydroxyl-functional compound being a solvent for said epoxy resin and for the non water-dispersible, defunctionalized, etherified, phsophoric acid epoxy resin ester reaction product; and(d) water in an amount of 0-20% of the weight of the orthophosphoric acid.

Abstract: A biocompatible polyester comprising repeating units derived from glycerophosphorylcholine or glycerophosphorylethanolamine and at least one di- or poly-functional acid or reactive derivative thereof is haemocompatible and may be used in components for handling body fluids and in prostheses.

Abstract: Composition comprising an epoxy resin, an adduct of a tetra-substituted titanate and a di-substituted hydrogen phosphite, a neutral ester of a phosphorous acid, and a curing agent for the epoxy resin.The composition is particularly useful as an adhesive for bonding structures made of sheet molding compound to like structures, to steel, and to other substrates commonly used in the automotive area.

Abstract: This invention claims flame retardant polycarbonate resin compositions comprising an aromatic carbonate polymer and, as a novel flame retardant additive therefor, a phosphorus-containing polycarbonate composition produced by carrying out a polycarbonate condensation in which at least part of the diol compound is a bishydroxyalkylphosphine oxide. Also described are the novel flame retardants per se.

Abstract: This invention relates to new polyphosphates, and to the production and use thereof.

Abstract: A thermistor using an organophosphazene polymer having aryloxyl and/or alkoxyl group pendants as a thermo-responsive material. The organophosphazene polymer has an excellent responsiveness to temperature change, and can be molded into desired forms. The thermistor having good reliability and good heat and flame resistances can be prepared with good processability and in good yield.

Abstract: A process for preparing polyphosphazene polymers containing fluoroalkoxy and/or aryloxy substituents is provided. The process involves the reaction of a fluoroaliphatic alcohol or a substituted or unsubstituted aromatic alcohol or mixture of such alcohols with sodium hydroxide in an organic solvent or mixture of organic solvents which under appropriate conditions will form an azeotrope with water produced by the reaction. Water produced by the reaction is removed from the reaction mixture by azeotropic distillation thereby producing substantially dry sodium salts of said alcohols. The substantially dry sodium salts of the alcohols are then reacted with a linear polydichlorophosphazene polymer to produce polyphosphazene polymers containing fluoroalkoxy and/or aryloxy substituents.

Abstract: The present invention provides new linear phosphorus- and halogen-containing flame retardant polyester additives for normally flammable polymers and coatings for normally flammable natural and synthetic films and fibers, for instance, polyester and cellulose ester films and fibers. The phosphorus- and halogen-containing polymers of the invention are water dispersible or can be rendered water-soluble. They can be prepared by reacting a phosphorus acid reactant such as phosphoric acid with at least one halogenated difunctional monomer. The water-soluble polyesters can be cross-linked to render them insoluble in water by heating together with a methylol compound.Said halogenated monomer is preferably an oxyalkylated diacid or diol and said halogen is attached either on one or more aromatic rings or on a cycloaliphatic ring.

Abstract: The present invention provides new linear phosphorus- and halogen-containing flame retardant polyester additives for normally flammable polymers and coatings for normally flammable natural and synthetic films and fibers, for instance, polyester and cellulose ester films and fibers. The phosphorus- and halogen-containing polymers of the invention are water dispersible or can be rendered water-soluble. They can be prepared by reacting a phosphorus acid reactant such as phosphoric acid with at least one halogenated difunctional monomer. The water-soluble polyesters can be cross-linked to render them insoluble in water by heating together with a methylol compound.Said halogenated monomer is preferably an oxyalkylated diacid or diol and said halogen is attached either on one or more aromatic rings or on a cycloaliphatic ring.

Abstract: The present invention provides new linear phosphorus- and halogen-containing flame retardant polyester additives for normally flammable polymers and coatings for normally flammable natural and synthetic films and fibers, for instance, polyester and cellulose ester films and fibers. The phosphorus- and halogen-containing polymers of the invention are water dispersible or can be rendered water-soluble. They can be prepared by reacting a phosphorus acid reactant such as phosphoric acid with at least one halogenated difunctional monomer. The water-soluble polyesters can be cross-linked to render them insoluble in water by heating together with a methylol compound.Said halogenated monomer is preferably an oxyalkylated diacid or diol and said halogen is attached either on one or more aromatic rings or on a cycloaliphatic ring.

Abstract: The production of phosphazene polymers represented by the general formula ##STR1## WHEREIN R and R' are organic radicals hereinafter defined, and wherein n is an integer from 20 to upwards of 50,000 wherein one or more kinds of OR or OR' groups is attached to the phosphorus atoms in a substantially linear chain of alternating P and N atoms, the groups when more than one group is present being randomly distributed along the PN backbone, as described in copending United States Patent Application Ser. No. 824,004 filed Aug. 12, 1977, is enhanced by an improved procedure for the separation of the sodium chloride by-product from the derivatized phosphazene polymer. By treating the reaction mixture with carbon dioxide, in the presence of water and preferably with an additional alkali metal salt, agglomeration of the sodium chloride is accomplished, and a clean separation of the NaCl from the polyphosphazene ester is more readily achieved.