Abstract: Aromatic sulfonates and fiber and film forming polymers containing these sulfonates, the sulfonates being represented by the general formula: ##STR1## WHEREIN R.sub.1 represents either hydrogen or an alkyl radical containing from 1 to about 6 carbon atoms; n, n.sub.1, n.sub.2 and n.sub.3 each independently represent an integer from 0 to about 6, and n.sub.1 + n.sub.2 + n.sub.3 is equal to or greater than 2 if Y and Z both are hydroxy; Y and Z are selected independently from the class consisting of hydroxy, carboxy, and alkoxycarbonyl, the alkoxy portion of which contains from 1 to about 6 carbon atoms; Ar represents a divalent aromatic radical which may be substituted or unsubstituted; m is an integer equal to the valency of the metal; and R represents a divalent radical, with the proviso that where n is O and Ar is phenylene, the metal is lithium.

Abstract: Normally flammable synthetic polymers selected from the group consisting of polyester resins, polyamide resins, cellulosic resins, polyolefins and their substituted derivatives, vinyl aryl compounds, polycarbonate resins, polyurethane resins and mixtures of the foregoing are rendered flame retardant by incorporating therein a flame retardant amount of polyphosphazene having the general formula: ##STR1## WHERE N IS AT LEAST 10, R and R' may be the same or different and represent aryl groups, y and y' may be the same or different and represent halogen and halogen substituted and unsubstituted lower alkyl (e.g., 1 to 10 carbon atoms), aryl, alkoxy, and aryloxy groups, and m = 0 to 10.

Abstract: This invention relates to high molecular weight polyamide resin compositions which are uniquely stable under hydrolytic conditions. The polyamide resin compositions are produced by the condensation of a diamine with a sterically-hindered neo-acid derivative such as .alpha.,.alpha.,.alpha.',.alpha.'-tetramethyl-p-phenylenediacetic acid.

Abstract: The present invention provides a process for preparing phosphorus and halogen containing polymers useful as flame retardant additives in cellulose acetate or cellulose triacetate fibers or films. The phosphorus and halogen containing polymers may be prepared by reacting a halogenated derivative of bis-hydroxyethyl terephthalate with a halogen containing phosphorus monomer having the formula ##STR1## wherein R represents a radical selected from the group consisting of (a) alkyl, (b) bromoalkyl, (c) chloroalkyl, (d) alkylamido and (e) dialkylamido radicals, wherein the alkyl substituents of the foregoing may contain from 1 to 10 carbon atoms, (f) cyclohexyl, (g) phenyl, (h) benzyl, (i) tolyl, and (j) xylyl, and X represents a halogen atom (preferably chlorine or bromine).

Abstract: This invention relates to high molecular weight polyester resin compositions which are uniquely stable under hydrolytic conditions. The polyester resin compositions are produced by the condensation of a dihydric polyol with a sterically-hindered neo-acid derivative such as .alpha.,.alpha.,.alpha.',.alpha.'-tetramethyl-p-phenylenediacetic acid.

Abstract: An improved flame retardant molding composition of polypropylene terephthalate or polybutylene terephthalate is provided. The composition includes in intimate admixture with the non-halogenated polypropylene terephthalate or polybutylene terephthalate an oxide of antimony, a reinforcing agent (e.g. a glass fiber reinforcing agent), and a polyalkylene-2,5-dibromoterephthalate. Unlike the flame retardant molding compositions of the prior art, the components of the same tend to be non-exuding during utilization of the resulting three-dimensional shaped article at elevated temperatures (e.g. after 66 hours at 175.degree. C.) and thereby render the same suitable for attractive utilization in an even wider range of applications.

Abstract: Novel organopolysiloxane polyesters are provided by the interaction of bis(2-hydroxyethyl) terephthalate and organohalosilanes.

Abstract: Curable compositions are provided by the interaction of bis(2-hydroxyethyl) terephthalate with unsaturated epoxy derivatives such as allyl glycidyl ether to form unsaturated poly(ester-ethers).

Abstract: An improved acid interchange polymerization process for the formation of an aromatic polyester is provided. Ester and carboxylic acid functional groups are reacted in the presence of a catalytically effective amount of a catalyst consisting of a mixture of a transition metal salt of a strong inorganic acid and a transition metal salt of an aliphatic carboxylic acid containing up to about 4 carbon atoms. In a preferred embodiment of the process the reactants are at least one aromatic diester and at least one aromatic dicarboxylic acid. Alternatively, the ester and carboxylic acid functional groups required for the acid interchange reaction may be provided upon the same molecule. Halogen or other substituent groups which do not interfere with the acid interchange reaction optionally may be present upon the aromatic rings.

Abstract: An improved flame retardant molding composition of polypropylene terephthalate or polybutylene terephthalate is provided. The composition includes in intimate admixture an oxide of antimony and a specific brominated aromatic polyphosphate copolymer which has been found to be highly compatible with the other components. In a preferred embodiment the molding composition additionally includes a reinforcing agent (e.g. a glass fiber reinforcing agent). Unlike the flame retardant molding compositions of the prior art, the components of the same tend to be non-exuding during utilization of a resulting three-dimensional shaped article at elevated temperatures (e.g. after 66 hours at 175.degree.C.) and thereby render the same suitable for attractive utilization in an even wider range of applications.