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: The polyesters of trans-4,4'-stilbenedicarboxylic acid, 95-60 mol % 1,6-hexanediol, and 5-40 mol % ethylene glycol 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: The polyesters of 100 mol % trans-4,4'-stilbenedicarboxylic acid, 55 to 5 mol % 1,4-cyclohexanedimethanol, and 45 to 95 mol % 1,6-hexanediol 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: 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: The polyesters of trans-4,4'-stilbenedicarboxylic acid, 95 to 60 mol % 1,4-butanediol, and 5 to 40 mol % ethylene glycol can be injection-molded to give shaped objects having exceptionally high 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: This invention provides novel polymers which are characterized by a recurring structural unit that contains a pendant quinoid structure and that exhibits nonlinear optical response.The following structure is illustrative of an invention polymer: ##STR1## where m is an integer of at least 3.

Abstract: An unsaturated polyester resin syrup containing styrene monomer in which styrene volatilization is suppressed using a substituted succinic acid or substituted succinic anhydride.

Abstract: The invention relates to unsaturated homo- and/or copolymerizable polyesters which have been prepared from an alcohol component comprising a multivalent alcohol, a carboxylic acid component comprising a multivalent carboxylic acid and optionally, hydroxycarboxylic acids or their derivatives capable of forming esters, and an acid component selected from the group consisting of maleic acid, fumaric acid, itaconic acid, mesaconic acid, aconitic acid, their derivatives capable of forming esters and mixtures thereof. As part of the alcohol coponent, hydroxylated polybutadiene with an average molecular weight of 2400 to 3000 and a hydroxy-functionality of 2.2 to 2.4 is condensed into the polyester. The polyesters exhibit useful flow anomalies which are due to their molecular structure.

Abstract: The instant invention relates to an improved process for the preparation of low molecular weight polyalcohols by the catalytic hydrogenation of a mixture of different low molecular weight hydroxy aldehydes, hydroxy ketones and optionally also polyhydric alcohols such as is formed from the autocondensation of formaldehyde (such a mixture will hereinafter be referred to as "formose"). The invention also relates to the use of these polyalcohols for the production of polyurethane resins.

Abstract: Polyester resins are disclosed as the impregnant in the core sheets of heat and pressure consolidated laminates, especially decorative laminates having a core of a color complementing that of the decor sheet, and more especially those decorative laminates of unusual thickness.

Abstract: An unsaturated polyester, preferably having a stellate molecular structure, with a polyol center and monohydric alcohol connected to the polyol hydroxy moieties through a di- or tri- carboxylic acid link, as well as a process for its synthesis, and use of the compounds in air-drying lacquer binders.

Abstract: Polymeric dyes having pendent chromophore groups which are selected from azo, tricyanovinyl, anthraquinone, methine, and indoaniline groups fall into two classes, [A] condensation polymers, and [B] polymers derived from copolymerized ethylenically-unsaturated monomers, the dyes being capable of undergoing thermoplastic deformation by a focused laser beam when in a layer of thickness in the range of 0.1 to 100 micrometers and having an absorptivity in the range of 10 to 250 Lg.sup.-1 cm.sup.-1. They are film-forming, thermally- and light-stable, and solvent-coatable. These compounds are useful as coloring and light-absorbing agents, particularly as the light-absorbing agents in thin optical recording layers.

Abstract: The properties of a thermosetting furan based polymer are improved by incorporating therein at least one metal selected from the group consisting of niobium and/or tantalum.

Abstract: Norbornyl modified unsaturated polyester and polyesteramide resins are further modified by inclusion of 9-thiabicyclononane groups. Upon curing, these resins provide shorter gel and cure times plus substantial reductions in the maximum exotherm temperature.

Abstract: A process for producing a halogen-containing unsaturated polyester which comprises halogenating a dicyclopentadiene-terminated unsaturated polyester by feeding the unsaturated polyester into a reaction system which contains halogen. The unsaturated polyester or a resin composition containing the same shows a by far improved color tone, as compared with conventional ones, and also exhibits an increased halogen content and an elevated deflection temperature. They can be advantageously used as raw materials in every industrial fields, such as electrical appliances, construction materials, automobiles, railroad wagons and airplanes.

Abstract: A new class of ethynyl-terminated oligomers and the process for preparing same are disclosed. Upon the application of heat, with or without a catalyst, the ethynyl groups react to provide crosslinking and chain extension to increase the polymer use temperature and improve the polymer solvent resistance. These improved polyesters are potentially useful in packaging, magnetic tapes, capacitors, industrial belting, protective coatings, structural adhesives and composite matrices.

Abstract: An unsaturated polyester exhibiting low styrene emissions comprises conventional phthalic and maleic anhydrides together with specific amounts of diethylene glycol, styrene, and a particular type of paraffin wax.

Abstract: New unsaturated polyester resin alkyds are disclosed which have an acid number in the 30 to 60 range, viscous behavior at room temperature, a viscosity not exceeding 300,000 cps at 45.degree. C. and a viscosity not exceeding 500 cps at 25.degree. C. when diluted with styrene up to a content of 31% by weight referred to the total of alkyd plus styrene. The alkyds are obtained by reacting together compounds selected from classes including: (A) acids and unsaturated anhydrides in amounts ranging from 0.4 to 1.0 moles; (B) other dicarboxylic acids; (C) one or more polymeric glycols comprising molecules which contain more than 90% by weight of 1,2-propyleneoxide units at a rate of at least 50%, preferably 60%, moles out of the total of (C)+(D) glycols; and (D) other glycols at a rate of no more than 50% moles out of the total of C+D glycols, there being at all times present at least one component selected from class (A) and at least one component selected from class (C).

Abstract: Disclosed are linear, high molecular weight unsaturated polyesters prepared by reacting essentially equimolar amounts of an acid selected from maleic acid, maleic anhydride or fumaric acid and cyclohexanedimethanol at temperatures of less than about 200.degree. C. until an I.V. of about 0.5 is reacted.

Abstract: Improved flexibility properties are provided in an unsaturated polyester resin comprising the esterification product of about 85 moles of maleic anhydride and a molar equivalent of water, about 10 to about 20 moles of a fatty acid dimer or trimer, about 65 to 125 moles of dicyclopentadiene, and about 50 to about 65 mole percent, based on the total of the maleic, dimer and trimer acids, of a glycol having 2-6 carbon atoms.

Abstract: Semi-esters of polyisobutylenesuccinic acid having the formula ##STR1## in which R.sup.1 is a polyisobutylene radical with a molecular weight of 100 to 20,000,R.sup.2 andR.sup.3 are different from one another and one of these two radicals is a hydrogen radical and the other one of the groups ##STR2## in which R.sup.4, R.sup.5 is a hydrogen or methyl radical, andR.sup.6 is a methyl or ethyl radical.The invention furthermore relates to processes for synthesizing these compounds as well as to preparations which can be converted by radiation into adhesives.

Abstract: This invention relates to low viscosity curable polyester resin compositions and a process for the preparation thereof, which compositions contain a mixture of (i) an unsaturated ester terminally modified with a reactive olefin such as dicyclopentadiene or other Diels-Alder adducts of cyclopentadiene with an olefinic or acetylenic hydrocarbon or alkylated derivative thereof and (ii) a polymerizable ethylenically unsaturated monomer which serves to crosslink the unsaturated ester to a thermoset product. Fiber reinforced thermoset articles can be produced from these low viscosity curable polyester resin compositions.

Abstract: This invention relates to a process for producing low viscosity curable polyester resin compositions, which compositions contain a mixture of (i) an unsaturated ester terminally modified with a reactive olefin such as dicyclopentadiene or other Diels-Alder adducts of cyclopentadiene with an olefinic or acetylenic hydrocarbon or alkylated derivative thereof and (ii) a polymerizable ethylenically unsaturated monomer which serves to crosslink the unsaturated ester to a thermoset product. Fiber reinforced thermoset articles can be produced from these curable polyester resin compositions.

Abstract: This invention relates to low viscosity polyester compositions which are terminally modified with a reactive olefin such as dicyclopentadiene or other Diels-Alder adducts of cyclopentadiene with an olefinic or acetylenic hydrocarbon or alkylated derivative thereof, and a process for the preparation thereof. These low viscosity polyester compositions have utility in resin systems for moldings, coatings, sealants and adhesives, and as reactive diluents.

Abstract: This invention relates to a process for producing polyester compositions which are terminally modified with a reactive olefin such as dicyclopentadiene or other Diels-Alder adducts of cyclopentadiene with an olefinic or acetylenic hydrocarbon or alkylated derivative thereof. These polyester compositions have utility in resin systems for moldings, coatings, sealants and adhesives, and also as reactive diluents.

Abstract: Bioresorbable polyesters composed of, in one aspect, the Krebs Cycle dicarboxylic acid or isomer or anhydride thereof, chosen for the group consisting of succinic acid, fumaric acid, oxaloacetic acid, L-malic acid, and D-malic acid, a diol having 2, 4, 6, or 8 carbon atoms, and an alpha-hydroxy carboxylic acid chosen from the group consisting of glycolic acid L-lactic acid and D-lactic acid.

Abstract: Unsaturated polyesters based on isophthalic acid are used as additive binders in coating agents. With the use of these polyesters, the resultant coatings have an adhesiveness to metallic substrates to be protected which is improved in relation to the comparable state of the art coatings. Furthermore, coatings are obtained by which the conditions for the protection of metals from corrosion (good adhesion of the coatings on metallic, in particular, critical metallic substrates, and good resistance of the coatings to environmental influences, in particular, good resistance to hydrolysis) are improved. Hence, improved protection from corrosion is achieved.

Abstract: A hot-melt adhesive comprising a self-curing unsaturated polyester resin having an air-drying functional group and an average polymerization degree of 8 or more has been found to have an excellent heat resistance and a high bonding strength when it is bonding-cured under heat and pressure. If an additive selected from a polymerization initiator, a polymerization promotor and a photosensitizer is incorporated into the present air-drying, self-curing polyester resin, the curing speed is extremely increased to such an extent as cannot be expected from the conventional curing type adhesives. The incorporation of such an additive into the self-curing unsaturated polyester resin is advantageously realized in the form of composite structures of various forms, e.g., a laminate form, a core-in-sheath form and an islands-in-sea form. Such a composite hot-melt adhesive structure is useful for improving a pot life.

Abstract: The invention is related to unsaturated homo- and/or copolymerizable linear polyesters which are prepared from diols and at least one unsaturated dicarboxylic acid or its derivatives capable of forming esters. The polyesters contain as component (A) a diol with end-position hydroxyl groups and an average molecular weight of 700 to 1200; as component (B) one or more unsaturated dicarboxylic acids; and as component (C) a linear diol with 2 to 6 carbon atoms. The equivalent ratio of A:B is from about 0.8:1 to 1.2:1 and the equivalent ratio of C:(A+B) is from about 0.5:1 to 1:1.

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: The polyesters of trans-4,4'-stilbenedicarboxylic acid and 1,4-butanediol modified with 20 to 80 mol % terephthalic acid and/or 20 to 80 mol % of 2,6-naphthalenedicarboxylic acid can be injection-molded to give plastics, extruded into films or spun into fibers to give shaped objects with high strength.

Abstract: Described herein is a curable physical mixture comprising (a) an active hydrogen containing compound selected from a polyol, a polyamine, an amino alcohol, or mixtures thereof, (b) an unsaturated carboxylic anhydride, and (c) an ethylenically unsaturated monomer. These mixtures are cured to give a thermoset crosslinked composition.

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.

Abstract: Copolyesters of poly(ethylene 2,6-naphthalenedicarboxylate) modified with about 15 to 45 mol % trans-4,4'-stilbenedicarboxylic acid can be injection molded to give polymers with tensile strengths up to 32,000 psi and moduli up to 1,250,000 psi. As-spun or drawn fibers and films of poly(ethylene 2,6-naphthalenedicarboxylate) modified with as little as 10 mol % trans-4,4'-stilbenedicarboxylic acid have improved modulus compared with unmodified poly(ethylene 2,6-naphthalenedicarboxylate). The copolyesters have properties superior to those of poly(ethylene terephthalate).

Abstract: Ordered ester/carbonate copolymers having improved properties at higher solids are provided by (1) contacting a dihydric organic compound such as bisphenol-A with a diacid halide such as terephthaloyl chloride and a carbonate precursor such as phosgene under conditions sufficient to form an ester/carbonate oligomer and (2) contacting the oligomer with additional carbonate precursor to produce the desired ordered ester/carbonate copolymer.

Abstract: Unsaturated esters can be prepared from dicarboxylic acids and dibromoneopentyl glycol with improved resin color in a shorter reaction time with minimal corrosion of metallic reaction vessels and with a net energy saving by the process using an aryl sulfonic acid as the esterification catalyst and following completion of the reaction neutralizing the acid catalyst.

Abstract: By mixing and reacting an alkali metal silicate, a substituted monohydroxy organic compound and a polycarboxylic acid and/or polycarboxylic acid anhydride, polyester silicate resinous products are produced which may be utilized as molding powder, coating agent, etc.

Abstract: A method for the manufacture of a polybutadiene-modified unsaturated polyester, comprising the steps of: (I) reacting (A) an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride with (B) at least one compound selected from the group consisting of (i) air-drying allyl compounds, (ii) animal and vegetable oils or derivatives thereof and (iii) dicyclopentadiene or derivatives thereof at a (B)/(A) molar ratio within the range of from 0.8 to 1.2, and (II) reacting the resultant reaction product with (C) at least one compound selected from the group consisting of .alpha.,.omega.-polybutadiene glycol and .alpha.,.omega.-hydrogenated polybutadiene glycol. A polybutadiene-modified unsaturated polyester comprising said polybutadiene-modified unsaturated polyester and a polymerizable monomer possessing at least one double bond.

Abstract: The present invention provides an accelerator for hardening unsaturated resins, comprising a mixture of at least one ketimine and at least one inorganic or organic cupric or ferric compound.The present invention also provides a process for hardening unsaturated resins, wherein an accelerator is used comprising at least one ketimine and at least one inorganic or organic cupric or ferric compound, together with a conventional hardener.

Abstract: Polyester resins are prepared by reacting unsaturated dicarboxylic acid anhydrides with water, a diene oligomer, and a polyol or and an alkylene oxide. The polyester resins can be blended with unsaturated monomers and various fiber to give cured laminates. The advantage of this invention is that the substitution of the diene oligomers gives lower cost resins with about the same properties.

Abstract: By mixing and reacting an alkali metal silicate, a substituted monohydroxy organic compound and a polycarboxylic acid and/or polycarboxylic acid anhydride, polyester silicate resinous products are produced which may be utilized as molding powder, coating agent, etc.

Abstract: Cured polyester compositions and their production are described. These are produced by curing a composition containing polyester resin and aliphatic polyol having a molecular weight of at least about 2000. The polyol acts to reduce normal polyester shrinkage incident to curing so as to produce improved articles.

Abstract: Disclosed are compositions comprising a polyester derived from 100 mole % of an acid component and 100 mole % of a glycol component, the acid component comprising about 30-90 mole % of at least one .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid and about 70-10 mole % of a compound containing a cinnamic acid moiety, and the glycol component comprising at least one saturated aliphatic glycol containing from 2 to 10 carbon atoms. These compositions have improved resistance to attack by organic solvents.

Abstract: Polyester resins are produced from unsaturated dicarboxylic anhydrides which are modified with a C.sub.10 hydrocarbon concentrate. They are superior to the known resins made by the hydrolysis method containing the hydrocarbon concentrate in that the dicarboxylic anhydrides used in the preparation of the resins are hydrolyzed with an amount of water always less than the amount of maleic anhydride and/or hydrocarbon on a molar basis. After the hydrocarbon addition reaction of the in situ generated acid, the reaction is heated to 140.degree. C. to 185.degree. C. in order to generate cyclopentadiene or similar C.sub.5 hydrocarbons and form endomethylene tetrahydrophthalic anhydride (carbic anhydride) or other similar Diels-Alder products from the remaining unreacted maleic anhydride and hydrocarbon, generally prior to the addition of other resin forming chemical intermediates e.g. polyols.

Abstract: Alkali metal unsaturated polyester silicate resinous products are produced by mixing a polyhydroxy organic compound, an alkali metal silicate and an unsaturated polycarboxylic acid, then heating the mixture to a temperature between the melting point of the polycarboxylic acid and the boiling temperature of the polyol while agitating until the reaction is complete. The products may be used in laminates and as coating agents.

Abstract: This invention relates to an improvement in a photopolymerizable mixture which contains, as the essential constituents, (a) a polymeric binder, (b) a photoinitiator, and (c) a polyester of an .alpha.,.alpha.'-bis-methylene-dicarboxylic acid and a dihydroxy compound.

Abstract: This invention involves a curable liquid mixture comprising (a) a polyester of the following formula: ##STR1## wherein n has an average value between about 1.

Abstract: Novel thermosetting compositions, including a polyimide/N-vinylpyrrolidone prepolymer, optionally comprising an unsaturated polyester, and an epoxy resin, are well adapted for the molding of a variety of useful shaped articles.

Abstract: A process for the preparation of an unsaturated polyester from a glycol and tetrahydrophthalic anhydride, maleic anhydride and/or fumaric acid, suitable for the production of an unsaturated polyester resin rapidly loosing its surface tackiness after cross-linking, and furnishing very flexible materials which are resistant to creasing, is described. The glycol employed has at least two ether bridges regularly alternated with --CH.sub.2 --CH.sub.2 -- groups. The reaction is carried out in such a way as to obtain an alkyd essentially exempt from free tetrahydrophthalic anhydride. The resins thus prepared are adapted to the production of putties free from surface tackiness and having good finishing properties for application by spraying and/or by putty knife.

Abstract: Flyback transformers having good adhesiveness, crack resistance, arc resistance, without producing corona discharge can be produced by insulation treating flyback transformers with a low-shrinkage resin composition comprising (a) an unsaturated polyester produced by reacting partially esterified dicyclopentadiene carboxylic acid, which has been obtained by reacting dicyclopentadiene or hydroxylated dicyclopentadiene, and maleic acid or anhydride, with one or more polyhydric alcohols, (b) a monomer having a vinyl group and (c) a low-shrinkage agent.