Abstract: A modified polyester is produced by co-condensation-polymerizing a starting linear polyester which may have a branched group, having a number-average molecular weight of 300 to 1,400 and containing from 10 to less than 25 mole percent, basd on the total constituent monomer units of the starting polyester, of a dihydric alcohol having the following formula: HO--(CH2)n--OH, in which n is an integer of 2 to 6, with a tri- or more-valent monomer(s) selected from a tri- or higher valent carboxylic acid, a derivative thereof and a tri- or higher-valent alcohol. The modified polyester is useful as binder resin in an electrophotographic developer composition and toner.

Abstract: A shrinkable polyester film having a sufficient shrinkage, a sufficient resistance to solvent for printing ink, a shrinking property not to cause wrinkles, a warm water resistance sufficient for preventing wrinkles, slack and whitening is disclosed herein.The shrinkable polyester film of the present invention may be used as labels for various vessels such as glass bottle, heat-resistant PET bottle and non heat-resistant PET bottle.

Abstract: Disclosed herein is a polyester shrinkable film. The film according to the present invention can provide extremely excellent durability and long-time storability of contents of a container in labelling and shrink packaging use.

Abstract: A linear copolyester, useful as a flame retardant agent, contains in its macromolecule units derived from:(a) terephthalic acid;(b) (C.sub.2 -C.sub.6)-alkylene glycol;(c) phenyl-hydroxymethylene phosphinic acid, in a mutual ratio comprised within the range of from 1:1:0.2 to 1:1:1, and is obtained by placing a linear polyester derived from terephthalic acid and a (C.sub.2 -C.sub.6)-alkylene glycol into contact with a poly(phenylhydroxymethylene phosphinate) (I): ##STR1## wherein: Ph is the phenyl radical;R is a hydrogen atom or a linear or branched alkyl radical containing from 1 to 8 carbon atoms; andD is from 2.5 to 100,under melting conditions, and for a contact time not longer than about 30 minutes.

Abstract: There is disclosed a copolyester which comprises at least four compositions of: (A) terephthalic acid, and/or its ester forming derivative (terephthalic acid component) and isophthalic acid and/or its ester forming derivative (isophthalic acid component) with a molar ratio of 30/70 to 70/30; (b) 5 to 15 mole % of a dicarboxylic acid having sulfonate group and/or its ester forming derivative based on the all dicarboxylic acid components; (C) an alicyclic dicarboxylic acid and/or its ester forming derivative; and (D) 50 mole % of ethylene glycol based on the all glycol components; and a polyester film which comprises a subbing layer containing the copolyester provided on at least one side of a polyester film base.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,6-hexanediol and ethylene glycol.Injection-molded bars of the coplyesters exhibit unusually high stiffness and tensile strength compared to polyesters described in the art.

Abstract: The sizing agent according to the present invention contains as the essential component a high molecular compound having an weight-average molecular weight of not less than 20,000 prepared by reacting(A) a polyhydroxy compound having an weight-average molecular weight of not less than 1,000, which is prepared by an addition polymerization of ethylene oxide or alkylene oxides comprising ethylene oxide to an organic compound having two active hydrogens, with(B) a polycarboxylic acid, a polycarboxylic acid anhydride or a lower ester of a polycarboxylic acid.

Abstract: An aqueous printing ink or its semi-aqueous or non-aqueous concentrate exemplified as comprising a substantially homogeneous system of the components:(1) from about 4 to about 80 weight % of one or more polyester materials having an acid component of from about 75 to about 84 mole % isophthalic acid and conversely from about 25 to about 16 mole % 5-sodiosulfoisophthalic acid, and having a glycol component of from about 45 to about 60 mole % diethylene glycol and conversely from about 55 to about 40 mole % 1,4-cyclohexanedimethanol or ethylene glycol or mixtures thereof;(2) from about 0 to about 60 weight % of pigment material;(3) from substantially none to about 90 weight % of water; and(4) from about 0.25 to about 5 weight % of a diacyl-glycerophospholipid.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and 1,6-hexanediol. The copolyesters exhibit unusually high tensile strengths.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and 1,4-butanediol. The copolyesters exhibit unusually high tensile strengths.

Abstract: A method of preparing water-dispersed polymer blends, comprising the steps of:(i) preparing an aqueous polymerization mixture by adding to water, a sulfonate group-containing polyester or polyesteramide, one or more .alpha.,.beta.-unsaturated monomers and a polymerization initiator; and(ii) polymerizing said polymerization mixture to provide said water-dispersed polymer blend.Also disclosed is an aqueous dispersion of a polymer blend, comprising an aqueous dispersion having a solids content of about 30% to 65% of a polyester or polyesteramide blend comprising a sulfonate group-containing polyester or polyesteramide and a polymer comprising repeat units from one or more .alpha.,.beta.-unsaturated monomers.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,6-hexanediol and 1,4-butanediol. The copolyesters exhibit unusually high tensile strengths.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and ethylene glycol. The copolyesters exhibit unusually high tensile strength.

Abstract: Quick-crystallizing polyester compositions comprising a mixture consisting or consisting essentially of a polyester thermoplastic resin and of 0.1-10% by weight of a nucleant selected from polymeric-base salts, or mixtures of salts, of alkali metals or alkaline-earth metals of the formula:M--(OOC--C.sub.6 H.sub.4 --COO--CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2).sub.m (OOC--Z--COOY).sub.n (ABRX) (1)whereinM is an alkali or alkaline-earth metal;Y is a group --CH.sub.2 CH.sub.2 --,--(CH.sub.2).sub.4 -- or --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --;Z is a group --C.sub.6 H.sub.4 --, or a group --(CH.sub.2).sub.q --, q being an integer from 7 to 10;A is an anion selected from the group consisting of carboxylate, sulphonate, sulphinate, phosphonate, phosphinate;B may be a single bond or a group selected from the group consisting of --CH.dbd.CH--, --CH.sub.2 --, --CH.sub.2 CH.sub.2 --;R is an arylene radical containing from 1 to 3 aromatic rings or a heterocyclic ring;X is a hydrogen atom or a group --COOM or --COO(CH.

Abstract: A process for producing aromatic polyester which comprises mixing5 to 70 mol % (as calculated by converting the repeating unit mentioned below into one molecule) of polyester (A) with the repeating unit represented by general formula (I), ##STR1## and 95 to 30 mol % of an acyloxyl aromatic carboxylic acid (B), with 0.1 to 20 mol % based on the total amount of (A) and (B), of a diacyloxy aromatic compound (C) represented by general formula (II), ##STR2## and reacting the resulting mixture. The aromatic polyester is excellent in elasticity and mechanical strength, as well as toughness.

Abstract: A thermotropic liquid crystal polyester consisting essentially of ethylene glycol residue, terephthalic acid residue and parahydroxybenzoic acid residue wherein the mol ratio of ethylene glycol residue to terephthalic acid residue is substantially about 1:1 and the mol ratio of terephthalic acid residue to parahydroxybenzoic acid residue is in the range of about 5:95 to about 25:75, the polyester having an intrinsic viscosity of at least about 0.5 dl/g measured in a 50:50 by weight solvent mixture of phenol and 1,1,2,2-tetrachlorethane at 20.degree. C., and a transmittance of at least about 80% to 530 nm light at a light path length of 10 mm measured using a 0.4 wt. % solution of the polyester in said solvent mixture. A method for forming the thermotropic liquid crystal polyester is also disclosed. The liquid crystal polyester of the present invention is useful for injection molding applications and various extrusion molding purposes, such as the manufacture of films, sheets, fibers, pipes, etc.

Abstract: A crystalline polyester film or sheet coated with a priming composition consisting essentially of a carboxyl group-containing copolyester, wherein the carboxyl groups are introduced either by treatment of the terminal hydroxyl groups of the copolyester with a dicarboxylic acid anhydride or by pyrolysis of the copolyester. Such primer compositions form continuous wet films and dry coatings and provide surfaces receptive to a variety of surface finishes such as further polymer coatings and inks. Further, the primer-coated polyester can be recycled and can be used in applications where the coating is in contact with food articles.

Abstract: The invention relates to mixtures of cationic benzene carboxylate polymers, a method for their preparation and use, which polymers are defined by the formula ##STR1## wherein R and R' are selected from the group consisting of alkyl or alkenyl having from 1 to 20 carbon atoms, aryl, ##STR2## with the proviso that at least one of R and R' is quaternized; Q is hydrogen, SO.sub.3 -alkali metal, SO.sub.3 H, COOH or COO-alkali metal, between about 55% and about 90% of Q in said mixture being hydrogen and between about 10% and about 45% of Q in said mixture being other than hydrogen;a and b each have a value of from 1 to 200, except that the sum of a+b is at least 25;X is hydrogen, lower alkyl or mixtures thereof in random or block distribution when a and/or b is greater than 3;c has a value of from 2 to 10,000;R.sub.1, R.sub.2 and R.sub.3 each contain from 1 to 22 carbon atoms and are alkyl, hydroxy alkyl or alkylamido lower alkyl;R.sub.5 is ##STR3## --OH, --OCOR.sub.1 or --OR.sub.1 ; R.sub.6 is hydrogen or --COR.

Abstract: Melt processable, aromatic copolyesters containing 15 to 40 mole % of 4-oxybenzoyl moieties from 0.25 to less than 2.5 mole % of randomizing moieties, which are preferably 2-6 oxy naphthoyl moieties, the balance of moieties being equimolar proportions of moieties derived from hydroquinone and isophthalic acid. The preferred polymers are made by a dispersion polymerization process using as a dispersion aid a finely divided particulate material having at least 95% by weight of particles with at least one dimension less than 1 micron.

Abstract: Wholly aromatic thermotropic polyesters are based on(A) 30 to 60 mol % of 4-hydroxybenzoic acid,(B) 20 to 35 mol % of terephthalic acid and(C) 20 to 35 mol % of a mixture of(C.sub.1) trimethylhydroquinone and(C.sub.2) resorcinolthe molar ratio of C.sub.1 :C.sub.2 being within the range from 0.4:1 to 0.7:1 and the molar ratio of B:C within the range from 0.9:1 to 1.1:1.

Abstract: A wholly aromatic polyester consisting essentially of:(a) from 2 to 50 equivalent % of a 3,3'-biphenyldicarboxylic acid residue;(b) from 10 to 40 equivalent % of a dicarboxylic acid residue excluding the residue of 3,3'-bisphenyldicarboxylic acid;(c) from 10 to 52 equivalent % of a dioxy compound residue of the formula: ##STR1## wherein R.sup.2 is a group of the formula ##STR2## wherein R.sup.6 is a C.sub.1 -C.sub.4 alkyl group or a phenyl group and n is 0 or an integer up to 4, ##STR3## wherein X is as defined above, ##STR4## wherein X is as defined above, and/or ##STR5## and (d) from 0 to 80 equivalent % of an oxycarboxylic acid residue of the formula: ##STR6## wherein R.sup.3 is a bivalent aromatic hydrocarbon group or R.sup.4 --X--R.sup.5, wherein R.sup.4, R.sup.5 and X are as defined above, said polyester having a melt viscosity of at least 50 poise as measured at 275.degree. C. at 100 sec.sup.-1.

Abstract: A high use temperature wholly aromatic polyester resin, comprising, (i) a diacid component comprising 2,6-naphthalenedicarboxylic acid (N) and terephthalic acid (T) monomer units, wherein the ratio N:T is from about 0.25 to about 4.0, (ii) an aromatic diol component, comprising 4,4'-dihydroxybiphenyl monomer units, and (iii) 10-80 mole percent p-hydroxybenzoic acid monomer units, based on the total monomer units.

Abstract: Solution or lacquer adhesives are utilized in a wide variety of applications. Such adhesives are particularly useful because they can be easily applied to a substrate. This invention relates to a copolyester which is particularly useful as an adhesive which is comprised of repeat units which are derived from (a) diacid component which is comprised of (1) from 0 to 60 mole percent terephthalic acid and (2) from 40 to 100 mole percent of at least one aliphatic dicarboxylic acid containing from 4 to 12 carbon atoms; (b) a diol component which is comprised of (1) from 0 to 75 mole percent neopentyl glycol and (2) from 25 to 100 mole percent ethylene glycol; and (c) hydroxymethyl benzoic acid.

Abstract: Disclosed are polyesters containing repeating units from trans-4,4'-stilbenedicarboxylic acid and 1,6-hexanediol, the polyesters having an I.V. of at least 1.20, a tensile strength of at least 20,000 psi in 1/16-in. thick injection-molded bars, and a melt viscosity of 3000 poise or less at 265.degree. C. and a shear rate of about 107 sec.sup.-1.

Abstract: A shrinkable film for packaging excellent in the heat-sealing property and the shrinking property is disclosed. This shrinkable film is obtained by stretching a film of a mixture comprising 100 to 30 weight parts of a crystalline polyester (A), which comprises mainly terephthalic acid and 1,4-cyclohexane dimethanol and has a heat of crystalline melting of not less than 3 cal/g and a melting point in the range of 200.degree. to 310.degree. C., and 0 to 70 weight parts of a polyester (B) comprising terephthalic acid and/or 2,6-naphthalene dicarboxylic acid as the dicarboxylic acid constitutional unit and ethylene glycol and/or 1,4-butylene glycol as the glycol constitutional unit. The mixture of the polyester (A) and polyester (B) has a good handling property in drying. The shrinkable film for packaging of the present invention can be produced without any difficulty in drying and shows the ratio of shrinkage of 40 to 90% after 5-minute heat treatment at 100.degree. C.

Abstract: There are described vinyl ether terminated ester and urethane oligomers which cure or polymerize particularly rapidly, especially by cationic polymerization which is radiation induced in the presence of an onium salt. The oligomeric units arise most often from the reaction of a dicarboxylic acid or diisocyanate with a diol. The carboxyl-terminated oligomeric esters are esterified with vinyl ether terminated alcohols which can be thought of as the adducts of alkynes and diols which are bis(hydroxyalkyl)cycloalkanes where the cycloalkane is of ring size 5 through 8.

Abstract: A thermoplastic polyester composition for a powdered paint which comprises:(a) a copolyester derived from a dicarboxylic acid component comprising 40 to less than 60 molar % of terephthalic acid and a diol component comprising at least 70 molar % of 1,4-butanediol and having a melting point determined by differential thermal analysis of 100.degree. to 150.degree. C.,(b) a nucleating agent, and(c) a leveling agent.This composition can be applied with a lowered pre-heat temperature and a lowered heat setting temperature and can form a coating film having an excellent adhesion, a good appearance and a high impact resistance.

Abstract: Polyester polymers consisting essentially of repeating units having the formula ##STR1## repeating units having the formula--O--Ar.sup.1 --CO-- [II],repeating units having the formula--O--Ar.sup.2 --O-- [III],and repeating units having the formula ##STR2## wherein Ar.sup.1 is selected from ##STR3## Ar.sup.2 is selected from ##STR4## halogen substituted radicals of these radicals, and ##STR5## wherein X is selected from --O--, --S--, --SO.sub.2 --, --CO--, --O(CH.sub.2).sub.n O--.--CH.sub.2).sub.n, and ##STR6## wherein each n independently represents a member having a value of from 1 to 10, and each R.sup.4 is independently selected from alkyl radicals of 1 to 5 carbon atoms, andR.sup.2 and R.sup.3 are independently selected from hydrogen atom, halogen radicals, alkyl radicals of 1 to 5 carbon atoms, and phenyl radical, and R.sup.2 and R.sup.3 may be identical or different from each other, andR.sup.

Abstract: This invention relates to a hot melt adhesive which is particularly useful for securing textile substrates together. The hot melt adhesives of this invention are crystallizable copolyesters which are comprised of repeat units which are derived from terephthalic acid, isophthalic acid, ethylene glycol, and hexamethylene glycol. They normally have melting points within the range of about 95.degree. C. to about 125.degree. C. and glass transition temperatures within the range of about 0.degree. C. to about 10.degree. C. This invention is also related to a process for securing substrates to one another by utilizing such hot melt adhesives.

Abstract: The polyesters of trans-4,4'-stilbenedicarboxylic acid, 95 to 50 mol % 1,4-butanediol, and 5 to 50 mol % 1,4-cyclohexanedimethanol can be injection-molded to give shaped objects having exceptionally high tensile strength and heat resistance. Many of the polyesters also have excellent hydrolytic stability and chemical resistance. The polyesters of this invention can be molded, extruded into film, or spun into fibers having these properties.

Abstract: An adhesive resin composition is described, comprising: (A) a thermoplastic copolyester resin prepared from (1) a dicarboxylic acid component comprising from 40 to 100 mol % of terephthalic acid and from 0 to 60 mol % of other aromatic dicarboxylic acid and (2) a low molecular weight glycol component comprising from 40 to 100 mol % of 1,4-butanediol and from 0 to 60 mol % of diethylene glycol or 1,6-hexanediol and further from 0 to 10 mol %, based on the total carboxylic acid, of polytetramethylene glycol having a molecular weight of from 600 to 6,000, which has a melting point of from 90.degree. to 160.degree. C. and a reduced viscosity of at least 0.5; and (B) an ethylene copolymer having at least one functional group selected from an epoxy group, a carboxylic acid group, and a dicarboxylic anhydride gruop; and if desired, (C) a thermoplastic resin other than the resin (A), and if further desired, (D) a polyfunctional epoxy compound.

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: Polymer compositions containing repeating units from 0 to 95 mol percent of aromatic dicarboxylic acids containing 8 to 16 carbon atoms and having at least three carbon atoms between carboxyl groups or esters thereof, repeating units from 0 to 95 mol % 1,4-cyclohexanedimethanol, repeating units from 5 to 100 mol % trimellitic acid or anhydride, and repeating units from 5 to 100 mol % 4-(aminomethyl)cyclohexanemethanol, and wherein the mol % of the repeating units from the trimellitic acid or anhydride does not exceed the mol % of repeating units from the 4-(aminomethyl)cyclohexanemethanol.

Abstract: The present invention relates to polyester polyols having a hydroxyl number of about 80 to 250, containing reaction products of(a) 54 to 58 mol % of a polyol component and(b) 46 to 42 mol % of a dicarboxylic acid component, characterized in that(a) the polyol component contains (i) about 70 to 90 mol % of hexane-1,6-diol and (ii) about 10 to 30 mol % of at least one higher valent alcohol selected from trimethylolpropane, glycerol, pentaerythritol and mixtures of these polyols, and(b) the dicarboxylic acid component contains (iii) about 50 to 80 mol % of isophthalic acid, (iv) about 20 to 30 mol % of at least one dicarboxylic acid of the formula HOOC--(CH.sub.2).sub.n --COOH (n=an integer from 2-8) and (v) 0 to about 20 mol % of at least one dicarboxylic acid or at least one dicarboxylic acid anhydride selected from terephthalic acid, phthalic acid, phthalic acid anhydride, tetrahydrophthalic acid, tetrahydrophthalic acid anhydride, hexahydrophthalic acid and hexahydrophthalic acid anhydride.

Abstract: A polyester polyol mixture is prepared by reacting a polycarboxylic acid component-containing polyol with a terephthalic acid residue, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring positions, the ring unit content of the polycarboxylic acid component being sufficient for viscosity reduction of the polyester polyol mixture. The polyester polyol mixture is useful in the preparation of cellular foam materials, particularly polyisocyanurate and polyurethane foams, and laminates thereof.

Abstract: Phthalate polyester polyols comprising reaction products of a phthalic acid compound, a low molecular weight diol compound and a hydrophobic compound and a nonionic surfactant compound are provided which are compatible with fluorocarbon blowing agents and which possess a variety of other desirable characteristics. The polyols are producible by a simple heating process and are blendable with various conventional polyols and other additives to make resin prepolymer blends which can be catalytically reacted with organic isocyanates to produce cellular polyurethanes and polyurethane/polyisocyanurates.

Abstract: Phthalate polyester polyols comprising reaction products of a phthalic acid compound, a low molecular weight diol compound and a hydrophobic compound are provided which are compatibilized with fluorocarbon blowing agents and which possess a variety of other desirable characteristics. The polyols are producible by a simple heating process and are blendable with various conventional polyols and other additives to make resin prepolymer blends which can be catalytically reacted with organic isocyanates to produce cellular polyurethanes and polyurethane/polyisocyanurates.

Abstract: Curable compositions comprising epoxide prepolymers and polyaminobenzoates, alone, or combined with reinforcements, e.g., graphite fibers, and, optionally modified with second resins. The cured resin fiber matrix compositions exhibit high toughness combined with excellent hot/wet strength.

Abstract: Novel low-molecular weight polyesters consisting essentially of chain members of the formula ##STR1## wherein X is at least one member selected from the group consisting of ##STR2## and R is a bifunctional aliphatic hydrocarbon or a bifunctional hydrocarbon containing at least one aromatic or cycloaliphatic ring having an inherent viscosity of 0.08 to 0.35 dl/g measured at 30.degree. C. on a 100 ml solution of 0.5 g of polyester in a solvent of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane useful for further polymerization with amines, amides, imides and a novel method of preparing the same.

Abstract: Disclosed are polyesters derived from one or more aromatic dicarboxylic acids and a diol which includes at least 50 mol percent of 2,3-butanediol. The polyesters, prepared by the use of a tin catalyst, are high molecular weight polymers having an inherent viscosity of at least 0.4.

Abstract: Polyester compositions which are dispersible or soluble in water based systems can be very valuable as adhesives, coatings, paints, and the like. The use of water based solvent systems eliminates recovery and toxicity problems normally related with many organic solvents. The polyester compositions of this invention have an increased affinity for water based systems by the incorporation therein salts of organic sulfonic acid monomers and by carboxyl terminating these polyesters to a very substantial degree. The water based systems in which these modified polyesters are useful contain an alcohol in addition to water.

Abstract: A high molecular weight polyester suitable for use in forming shaped articles, the polyester having an inherent viscosity of greater than 0.4 and containing repeating units from a glycol component consisting essentially of 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol or mixtures thereof, and an acid component comprising at least 50 mole % of an alicyclic or aromatic dicarboxylic anhydride or corresponding acid having 6 to 30 carbon atoms.

Abstract: Disclosed is a process for the preparation of high molecular weight polyesters comprising reacting substantially equimolar amounts of an acid component comprising at least one alicyclic or aromatic dicarboxylic anhydride or corresponding dicarboxylic acid with 1,3- or 1,4-cyclohexanedimethanol, at a temperature between about 110.degree. C. and about 180.degree. C. in a solvent, azeotropically removing water from the reaction mixture while condensing solvent vapor and returning it to the reaction mixture, and recovering the polyester after an inherent viscosity of at least 0.4 has been attained.

Abstract: The polyesters of 95 to 40 mol % terephthalic acid, 5 to 60 mol % trans-4,4'-stilbenedicarboxylic acid, and at least 60 mol % 1,4-cyclohexanedimethanol can be injection molded to give shaped objects having exceptionally high impact strength and good chemical resistance. In addition, the polyesters of this invention can be extruded into films, spun into fibers, or blown into bottles having these properties.

Abstract: The improved composition comprises: about 43-31 mole % of neopentyl glycol; about 10-21 mole % of 1,4-cyclohexanedimethanol; about 10-21 mole % of aliphatic dicarboxylic acid selected from the group consisting of adipic acid, sebacic acid, azelaic acid, 1,12-dodecanedioic acid and mixtures thereof; about 22-16 mole % of aromatic acid selected from the group consisting of orthophthalic acid, isophthalic acid and mixture thereof; about 15-11 mole % of terephthalic acid; and, sufficient condensation catalyst to effect substantial esterification and polymerization of said composition at elevated temperature. The catalyst may be, for example, dibutyl tin oxide. The mole ratio of alcohol to acid is about 1.08-1, 13:1. The polyester resin is provided by reacting the components of the composition at a temperature of, for example, 470.degree. F. for a time sufficient to complete the reaction, the resin having an average molecular weight of at least about 5000 and preferably about 5000-7000.

Abstract: Disclosed is a hot-melt adhesive which comprises a copolyester of a dibasic acid component comprising 70 to 97 mole % of terephthalic acid and other dibasic acid with a polyhydric alcohol component comprising 70 to 97 mole % of 1,4-butane-diol, 3 to 30 mole % of diethylene glycol and up to 20 mole % of other polyhydric alcohol having 2 to 5 carbon atoms, said copolyester having a reduced viscosity of at least 0.6 dl/g as measured at a temperature of 30.degree. C. in a phenol/tetrachloroethane mixed solvent having a phenol/tetrachloroethane weight ratio of 60/40 at a polymer concentration of 0.25 g/100 ml, a glass transition temperature of at least 31.degree. C. and a crystallinity of 15 to 40 %.This hot-melt adhesive is excellent in the operation adaptability, and in the form of a film, the adhesive has an appropriate rigidity and a good dimension stability.

Abstract: Hydrolyzable polyester resin for an antifouling paint use having at least one metal-ester bondings, the metal being at least one member selected from the Groups Ib, IVa and VIII of the Periodic Table and the metal content being 0.3.about.10 wt %. The polyester resin is useful as resinous vehicle in self-polishing marine paint.

Abstract: Preparation of hydrolyzable polyester resin comprising reacting polycarboxylic acid and polyhydric alcohol components, which is characterized by using, as at least part of said polyhydric alcohol component, a metallic salt of hydroxy carboxylic acid of the formula defined and effecting the polycondensation at a temperature which is no more than the decomposition temperature of said metallic salt. The polyester resins are useful as resinous vehicle of varnishes and antifouling paints.

Abstract: This invention relates to polyesters of high molecular weight useful as films, fibers and molding plastics. It is particularly concerned with copolyesters comprising repeating units from trans-4,4'-stilbenedicarboxylic acid, optionally 0-40 mol % of terephthalic acid or 2,6-naphthalenedicarboxylic acid, and 1,2-propanediol, the polyesters having an inherent viscosity of about 0.3 or more and a flexural modulus of at least 900,000 psi.This invention is also concerned with copolyesters comprising repeating units of trans-4,4'-stilbenedicarboxylic acid, at least 10 mol % of one or more components selected from the group consisting of an aromatic dicarboxylic acid, aliphatic dicarboxylic acid or aliphatic glycol, and 1,3-propanediol. The polyesters have unobviously low gas permeability properties.

Abstract: Polyesters having recurring units derived from diols and diacids and recurring units derived from p-hydroxybenzoic acid is disclosed. Electrographic developer compositions comprising toner particles containing the polyesters are also disclosed.