Abstract: Crystalline polyimides having low glass transition temperatures and high solvent resistance are obtained by reacting diamino-oligo-phenylene sulfides with aromatic tetracarboxylic acids or their anhydride derivatives. The diamino-oligo-phenylene sulfides can be of varying length and can be reacted with the dianhydride by conventional processes.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Polyetherimide ester compositions exhibiting improved hydrolytic stability are provided. These polymers are comprised of the reaction products of:(i) at least one diol;(ii) at least one dicarboxylic acid or an ester forming reactive derivative thereof; and(iii) a set of reactants selected from either(a) (i) an amount at least effective to improve the hydrolytic stability of said composition of at least one high molecular weight bisaminoalkyl polytetrahydrofuran, and (ii) at least one tricarboxylic acid or derivative thereof, or(b) an amount at least effective to improve the hydrolytic stability of said composition of at least one polyoxytetramethylene dialkylenediimide diacid, said polyoxytetramethylene dialkylenediimide diacid being the reaction product of (iii)(a)(i) and (iii)(a)(ii).The polymers of the instant invention are useful for production of extruded and molded parts requiring improved hydrolytic stability.

Abstract: A polyetherimide ester composition comprising the reaction products of:(i) a mixture of at least one high molecular weight diol and at least one low molecular weight diol; and(ii) a set of reactants selected from(a) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.Also a polyetherimide ester composition comprising the reaction products of:(i) at least one high molecular weight diol; and(ii) a set of reactants selected from(a) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.

Abstract: Polyetherimide ester elastomers exhibiting improved thermal properties prepared from (i) a diol mixture containing at least in excess of 50 mole percent of cyclohexane dimethanol, (ii) at least one dicarboxylic acid, and (iii) either a combination of at least one tricarboxylic acid and at least one poly(oxyalkylene)diamine, or at least one poly(oxyalkylene)diimide diacid.These elastomers are suitable for use in extrusion and molding applications requiring elastomers exhibiting good thermal properties, particularly high melt temperatures.

Abstract: Glycoside-containing polyester products having improved color characteristics are provided by a polyester preparation process in which a polyol reactant containing at least a minor proportion of a glycoside reactant is reacted with a lower alkyl ester of a polybasic acid. The color characteristics of such products are notably improved relative to that which is obtained when said reaction is instead conducted using the corresponding polybasic acid or anhydride in place of the indicated lower alkyl ester thereof.The color improvement benefits of the present invention are particularly pronounced and dramatic when the polybasic acid component of the desired polyester product comprises an aromatic polybasic acid and when a lower alkyl ester of said aromatic polybasic acid is employed in the reaction in place of the aromatic acid itself.

Abstract: The invention relates to compounds with structures of the formulae I to IV ##STR1## in which formulae Tr is a radical of formula V or VI ##STR2## A is --O-- or --NR.sup.1 --, R.sup.1 is hydrogen or a monovalent organic radical,X is a di- or trifunctional radical of a hydroxycarboxylic or amino-carboxylic acid after removal of the functional groups,R.sup.2, if m is 1, has one of the meanings of R.sup.1, or R.sup.

Abstract: A process for producing an aromatic polyester by polycondensation of either(1)(a) aromatic hydroxycarboxylic acids containing at least 50 mole % of p-hydroxybenzoic acid, and/or ester-forming derivatives of these acids,(b) an aromatic dicarboxylic acid and/or an ester-forming derivative of aromatic dicarboxylic acid, and(c) an aromatic dihydroxy compound and/or an ester-forming derivative of aromatic dihydroxy compound,wherein the (a):(b) molar ratio and the (a):(c) molar ratio are each from 1:0 to 1:4, or(2)(d) aromatic dicarboxylic acids containing at least 50 mole % of terephthalic acid, and/or ester-forming derivatives of these acids and(e) aromatic dihydroxy compounds containing at least 50 mole % of at least one of hydroquinone, substituted hydroquinone, 4,4'-dihydroxydiphenyl, and substituted 4,4'-dihydroxydiphenyl, and/or ester-forming derivatives of these dihydroxy compounds,characterized in that the polycondensation is carried out by using a liquid compound which has a higher boiling point at normal

Abstract: A paint formulation for highway pavement marking is disclosed which comprises (I) a heat stable thermoplastic phenolic resin is prepared by (A) reacting (1) the reaction product of (a) at least one epoxy resin having an average of more than one vicinal epoxy group per molecule such as a diglycidyl ether of bisphenol A with (b) one or more polyhydric phenols such as bisphenol A; and optionally (2) one or more polyhydric phenols such as bisphenol A; with (B) a material having only one vicinal epoxy group per molecule such as the glycidyl ether of t-butyl phenol or mixture of such materials; in the presence of an effective quantity of a suitable catalyst such as ethyltriphenylphosphonium acetate acetic acid complex; and (II) at least one of (A) one or more pigments, (B) one or more dyes; (C) one or more fillers; or (D) any combination thereof.

Abstract: Water soluble polyacetals having molecular weights from about 5,000-30,000 are formed by condensing three monomers, e.g. a divinyl ether, a water soluble glycol and a diol. The invention is used for the bioerodible controlled release of therapeutic agents from the polyacetal hydrogel.

Abstract: Polyetherimide ester compositions comprising the reaction products of:(i) a mixture of at least one low molecular weight diol and at least one high molecular weight hydroxy terminated polylactone; and(ii) a set of reactants selected from(a) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.Also polyetherimide ester compositions comprising the reaction products of:(i) at least one high molecular weight hydroxy terminated polylactone; and(ii) a set of reactants selected from(a) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.

Abstract: Polyetherimide esters exhibiting improved tensile elongation comprised of the reaction products of (i) a diol mixture consisting essentially of butanediol and less than 70 mole percent of butenediol; (ii) at least one dicarboxylic acid or an ester forming reactive derivative thereof, and (iii) either at least one poly(oxy alkylene)diamine and at least one tricarboxylic acid or its derivative, or at least one polyoxyalkylene diimide diacid.The instant polymers are suitable for extrusion and molding applications.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Translucent polyetherimide ester polymers are provided comprised of the reaction products of (i) at least one cyclohexane dimethanol, (ii) at least one cyclohexane dicarboxylic acid or an ester forming reactive derivative thereof, and (iii) either a combination of at least one tricarboxylic acid and at least one poly(oxy alkylene) diamine, or at least one poly(oxy alkylene) diimide diacid.

Abstract: Described herein is a process for stabilizing a poly(aryl ether ketone) produced by a Friedel-Crafts polymerization process which comprises adding a nucleophilic and/or an electrophilic capping agent during the polymerization.

Abstract: A polyester, being capable of the anisotropic property in the molten state and a thermotropic liquid crystals, or a composition comprising a low molecular weight polyester and a thermotropic crosslinked, while having the structure of liquid crystals, by a crosslinking reaction with a compound having at least three reactive groups. The reactive group preferably includes hydroxy, carboxyl, amino, amide, carbodiimide, isocyanate, carbamate, epoxy and ester.

Abstract: High molecular weight thermotropic aromatic polyesters having flow temperatures ranging from 200.degree. to 350.degree. C., and well adopted for molding into mechanically improved shaped articles, e.g., fibers and films, are comprised of recurring structural units of the formulae (I), (II), (III) and (IV), wherein (I) is the structural unit: ##STR1## in which R.sub.1 is methyl, ethyl, chlorine or bromine, said structural units (I) either being identical or different; (II) is the structural unit: ##STR2## (III) is the structural unit: ##STR3## (IV) is the structural unit: ##STR4## and further wherein the molar ratio of the structural units (I) relative to the total amount of the structural units (II)+(III) ranges from 0.95 to 1.

Abstract: A process for producing an aromatic polyketone which comprises polymerizing an appropriate monomer or monomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst. A controlling agent such as a Lewis base may be added to the reaction medium and/or the reaction is conducted under specified conditions to control the reaction. The reaction medium comprises, for example, aluminum trichloride as the Lewis acid, an organic Lewis base such as N,N-dimethylformamide or an inorganic Lewis base such as sodium or lithium chloride, and a diluent such as methylene chloride or dichloroethane. The amount of Lewis acid, the amount of Lewis base, the temperature of the reaction and the monomer to diluent molar ratio are varied depending on the monomer system to obtain melt-processable, high molecular weight, substantially linear polymers, for example poly(carbonyl-p-phenylene-oxy-p-phenylene), poly(carbonyl-p-phenylene-oxy-p-phenylene-oxy-p-phenylene), and the like.

Abstract: Polyester compositions useful in formed articles such as beverage bottles and having condensation reacted therein at least one UV-absorbing compound of the formula ##STR1## wherein X is hydroxyl, carboxy, carbalkoxy, substituted carbalkoxy, or acyloxy; Y is cyano, carbamyl, substituted carbamyl, aryl, acyl, alkylsulfonyl, substituted alkylsulfonyl, phenylsulfonyl, or substituted phenylsulfonyl; R is selected from -alkylene-O-alkylene-, -alkylene-S-alkylene-, -alkylene-N(-SO.sub.2 alkyl)-alkylene-, straight or branched chain alkylene or such alkylene substituted with an X substituent; and R.sub.1 is hydrogen or 1-3 groups selected from alkyl, alkoxy and halogen.