Abstract: A method of producing dihydroxy-terminated poly(2,2,3,3,4,4-hexafluoropene-1,5-diol formal) of a desired number average molecular weight by controlling the relative amounts of 1,3-dioxa-5,5,6,6,7,7-hexafluorocyclooctane monomer, 2,2,3,3,4,4-hexafluoropentane-1,5-diol, and the catalyst trifluoromethane sulfonic acid (having a determined activity) used to produce the polymer.

Abstract: The present invention provides a process for the preparation of carboxyl group-terminated polyesters, which comprises reacting in one step at elevated temperatures, terephthalic acid and at least one dihydric aliphatic compound and optionally an aromatic polycarboxylic acid having three or more carboxyl groups and/or a polyhydric organic compound having three or more hydroxyl groups and/or a linear aliphatic or cycloaliphatic dicarboxylic acid, the proportions by weight of the respective reactants being such as to produce a polyester having an acid number of from 10 to 25 mg KOH/g and a hydroxyl number of at most 5 mg KOH/g.

Abstract: A thermoplastic polyetherimide ester polymer comprising the reaction products of:(i) a diol component comprised of at least one low molecular weight diol and at least one high molecular weight hydroxy terminated polylactone;(ii) at least one dicarboxylic acid or an ester forming reactive derivative thereof; and(a) (1) at least one high molecular weight poly(oxy alkylene)diamine, and (2) at least one tricarboxylic acid or its derivative, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.These polymers exhibit improved flexibility, i.e., a low flexural modulus. The diol component contains an amount of high molecular weight hydroxy terminated polylactone at least effective to improve the flexibility of the polymer.

Abstract: A polyetherimide ester composition comprising 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(A) (1) a diamine mixture of at least one high molecular weight poly(oxy alkylene) diamine and at least one low molecular weight hydrocarbylene diamine, and (2) at least one tricarboxylic acid or its derivative, or(B) a mixture of at least one high molecular weight polyoxyalkylene diimide diacid and at least one low molecular weight hydrocarbylene diimide diacid.These compositions are useful for the production of molded and extruded articles.

Abstract: Condensation polymers including linear polyester, unsaturated polyester, and polycarbonate types, wherein certain 3H-dibenzo-[f,ij] isoquinoline-2,7-dione colorants are copolymerized (condensed) into the polymer to impart a wide range of colors from yellow to blue thereto. These colorants are fast to ultraviolet and visible light, are thermally stable and nonsublimable at the polymer processing (includes preparation) temperatures, and are nonextractable therefrom, rendering the polymers particularly suitable for use as beverage bottles and food, pharmaceutical and cosmetic containers, as well as in producer colored fibers.The colorants have the formula ##STR1## wherein: X is --O--, --S-- or --NH--; --X--R.sub.1 --Z in combination is hydrogen or halogen; R.sub.1 is selected from alkyl, aryl, cycloalkyl or the like, and when X is --O-- or --NH--, --R.sub.1 --Z also can be hydrogen; each of R.sub.1, Rhd 2, R.sub.3 and R.sub.

Abstract: Compositions comprising an oligomer which (a) comprises the repeating unit (AR - CHR), and where Ar is an aromatic group and R is hydrogen or a hydrocarbyl group of hydrogen, (b) has pendant and/or terminal groups which include inter alia acyloxymethyl, hydroxymethyl and carboxyl, and (c) has a functionality between 0.5 and 10, and processes for the preparation thereof are described. These compositions may be used in dental, electrical and electronic applications.

Abstract: Disclosed in an alicyclic end-capping agent for a heterocyclic compound, which is represented by the formula [I]: ##STR1## wherein X is CO, O, S, CH.sub.2 or substituted CH.sub.2, Y.sub.1 -Y.sub.6 are halo, H, NO.sub.2, aryl, alkaryl, arylalkyl or alkyl ether, and Z is ##STR2## (Q.sub.1 is --NH.sub.2, --SH, --OH or ##STR3## (Q.sub.2 is H, or monovalent aliphatic or amomatic group). Also disclosed is an addition-curable quinoxaline resin oligomer having the above-mentioned alicylic end-capping agents at both terminals of oligomer. This oligomer is useful especially for an intermediate material for a fiber-reinforced composite.

Abstract: The polyesters of trans-4,4'-stilbenedicarboxylic acid, 5-95 mol % 1,4-butanediol, and 95-5 mol % 1,6-hexanediol can be injection-molded to give shaped objects having exceptionally high tensile strength and stiffness. Many of the copolyesters of this invention have excellent chemical resistance and good hydrolytic stability. The copolyesters can be injection-molded, spun into fiber, or extruded into film having these properties.

Abstract: An improved process for the preparation of a diaryl ester containing only small amounts of the corresponding monoesters comprises reacting a mixture of an aryl diacid, a monohydroxy aromatic compound and a catalyst, cooling, adding a controlled amount of water, and cooling further. Typically, diaryl esters, such as diphenyl isophthalate (DPI), containing only about 1-5% of the monoester, such as monophenyl isophthalate are obtained upon addition to the reaction mixture of approximately 5-15% by weight of water at 60.degree.-80.degree. C., followed by cooling to about 15.degree.-35.degree. C.

Abstract: Polycoester of the formula IE--CO--R--CO--O--R.sup.1 --O--CO--R--CO).sub.n E.sup.1 (I)in whichR is 60 to 85 mol % 1,3-phenylene radicals, 5 to 20 mol % tetramethylene radicals and 10 to 20 mol % for example radicals of the formula IIa ##STR1## R.sup.1 is 60 to 95 mol % ethylene radicals (--CH.sub.2 CH.sub.2 --), 0 to 28 mol % 2,2-dimethyl-1,3-propylene radicals and 5 to 12 mol % polyoxyethylene radicals having an average molecular weight up to 600 andR.sup.2 denotes for example SO.sub.3 H andE, E.sup.1 denote for example --OH andn is a sufficiently large number that the polycoester has an average molecular weight between 15,000 and 40,000, are used in the form of their aqueous solutions as sizing agents.

Abstract: Homopolymers or copolymers of organometallic, end-capped polyphthalaldehydes containing the repeating unit of formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently of the other hydrogen, halogen, cyano, nitro, carboxyl, hydroxyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio or C.sub.1 -C.sub.4 alkoxycarbonyl, and at least one of the substituents R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are a group --Q(R.sup.5).sub.3 or --Q(R.sup.6).sub.3, where Q is Si, Sn, Ge, CH.sub.2 --Si or O--Si, R.sup.5 is C.sub.1 -C.sub.12 alkyl and R.sup.6 is C.sub.6 -C.sub.10 aryl, are suitable for producing dry-developed, plasma-resistant photoresists required for the production of structured images, especially for microelectronics.

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: Thermoplastic elastomeric polyetherimide ester block copolymers comprising at least one polyetherimide ester recurring structural unit represented by the formula ##STR1## and at least one ester recurring structural unit represented by the formula ##STR2## wherein: G is the divalent radical remaining after the removal of the amino groups of a high molecular weight poly(oxy alkylene)diamine;R.sup.1 is the divalent radical remaining after the removal of the carboxylic groups of a dicarboxylic acid;R.sup.2 is the divalent radical remaining after the removal of the hydroxyl groups of a diol;y is a number having an average value of from 2 to about 200; andx is a number having an average value of from 2 to about 40.

Abstract: A method for preparing high molecular weight polyetherimide ester polymers comprising:(A) preparing a polyetherimide ester oligomer by coreacting(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(a) (1) at least one high molecular weight poly(oxy alkylene)diamine, and (2) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid,at elevated temperature and for a period of time effective to form said oligomer; and then(B) further polymerizing said oligomer by a solid phase polycondensation procedure comprising heating said oligomer at a temperature effective to further polymerize said oligomer to a high molecular weight polyetherimide ester polymer but below the melting point of said oligomer.The instant process is useful for forming high molecular weight polyetherimide ester polymers suitable for production of extruded and molded articles.

Abstract: Completely aromatic polyesters which form a liquid-crystalline filament-forming melt at below 300.degree. C. and essentially consist of(a) from 3 to 15 mol % of units derived from hydroquinone,(b) from 5 to 35 mol % of units derived from 2,7-dihydroxynaphthalene,(c) molar amounts, equivalent to the sum of (a) and (b), of units derived from terephthalic acid, and(d) from 10 to 70 mol % of units derived from p-hydroxybenzoic acid,and their preparation.

Abstract: A resinous composition for a top coat comprising a polyester resin modified with a lactone, said polyester resin being characterized in that 10 to 80 mole % of acid component is an alicyclic polycarboxylic acid or anhydride thereof, and 10 to 100 mole % of the carboxyl groups capable of developing a resinous acid value is derived from a polycarboxylic acid which will show a potentiometric midpoint potential in a non-aqueous potentiometric titration, in the state being incorporated into the resin, of -350 mV or more.The coating composition based on said resinous composition is specifically useful as a top coat for automobile bodies in two-tone-color coating.

Abstract: Elastomers are prepared from high molecular weight relatively rigid difunctional compounds and low molecular weight aliphatic compounds selected from diacids, diols, diamines, hydroxyacids and aminoacids.

Abstract: Polymers with conjugated double bonds having heterocyclic and/or carbocyclic rings or ring systems in which said rings or ring systems are linked with one another in pairs via a carbon atom as a bridge member. Polymers of the invention have, at least five of said ring or ring-systems. The polymers may be prepared by reacting at least one compound of the formula ##STR1## with at least one compound of the formulaH--R" --H (II)in whichX represents fluorine, chlorine, bromine, iodine, hydroxyl, sulfate radicals or radicals of the formula --OR, --SO.sub.3 F, --SO.sub.3 R or --NR.sub.2 ;X.sub.2 represents two radicals X, or an oxygen atom of a carbonyl group;R represents the same or different alkyl radicals having from 1 to 8 carbon atoms, phenyl and a hydrogen atom; andR" represents the same or different monocyclic or polycyclic (hetero) arylene radicals optionally substituted by hydrocarbon radicals having 1 to 8 carbon atoms.

Abstract: Coating compositions which are capable of curing at room temperature comprise (i) a condensation polymer in which the polymer backbone contains at least one grouping of the formula --CO--C(R).dbd.C(R)--CO--, where R is hydrogen, a halogen or an alkyl or aryl group, and (ii) a compound carrying at least three primary amine or thiol groups. The compositions are of particular interest as undercoats in the automobile refinish trade.

Abstract: Wholly aromatic mesomorphic polyester imides which form a liquid-crystalline fiber-forming melt below 320.degree. C. and are composed of(a) from 5 to 35 mole % of repeat units of the formulae I and/or II ##STR1## where the Xs and n's can be identical or different, each X being --O--, --S--, --SO.sub.2 --, --CO--, --CH.sub.2 -- or .dbd.C(CH.sub.3).sub.2 and n being 0 or 1,(b) from 0 to 30 mole % of repeat units of the formulae III and/or IV ##STR2## (c) a molar amount corresponding to the total amount of components a and b of one or more of the repeat units of the formulae V, VI, VII or VIII ##STR3## (d) not less than 10 mole % of repeat units of the formula IX ##STR4## (e) if desired from 5 to 25 mole % of repeat units of the formula X ##STR5## the molar proportions of components a, b, c, d, and e adding up to 100 mole % in each case,and the preparation thereof.