Abstract: Disclosed is pigmented dispersion containing a non-amine wetting and dispersing agent and a water-dissipatable or dispersible polyester containing sulfonate groups that has improved stability having a substantial number of capped carboxyl groups attached to the sulfomonomer moieties. This polyester can be prepared by capping the carboxyl end groups of the polyester with oxirane compounds or by polymerizing the reactants wherein one reactant is a diol that is a diester adduct of a glycol and a dicarboxylic acid sulfomonomer.

Abstract: Pigment preparations consisting essentially of (a) at least one pigment based on perylene-3,4,9,10-tetracarboxylic dianhydride or on corresponding monoimides or diimides of tetracarboxylic acid monoanhydride, or a halogenation product thereof, (b) at least one pigment dispergent based on perylene-3,4,9,10-monoimide substituted on one or both imide nitrogen atoms by alkylene or arylene sulphonic or carboxylic acid groups or on corresponding diimides of tetracarboxylic acid monoanhydride, or a halogenation product thereof. The dispergents used appreciably enhance the key properties of perylene pigments, such as dispersibility, coloring power, stability to flocculation, transparency, rheological behavior and surface properties of the application medium. These new preparations are suitable for the pigmentation of high-quality lacquers and synthetic resins.

Abstract: The present invention relates to aqueous polyurethane dispersions based onA) a relatively high molecular weight polyhydroxyl component containing carboxylic acid groups,B) optionally another relatively high molecular weight polyhydroxyl component which is substantially free of carboxylic acid groups,C) optionally low molecular weight polyhydroxyl compounds as chain lengthening agents,D) organic polyisocyanates andE) a neutralizing agent capable of converting the carboxylic acid groups into carboxylate groups,the dispersions are characterized in that the carboxyl group-containing relatively high molecular weight polyhydroxyl component A) is the esterification product of a polyether polyol a1) in the molecular weight range of from 400 to 5000, with a polycarboxylic acid a2); the dispersions are useful as laminating adhesives.

Abstract: The present invention provides an NMR diagnosis assisting sheet characterized in that the sheet comprises a molded body of a water-absorbing resin, the water-absorbing resin forming a uniform matrix phase wherein the molecules of the resin are interlocked with one another, and water absorbed by the resin is uniformly dispersed as chemically and/or physically bonded to the resin.

Abstract: A polymeric emulsion comprising a (i) polymer, (ii) water, and (iii) a surfactant is useful for producing a water-resistant film. The polymer comprises about 25 to about 90 weight percent of a soft monomer whose homopolymer has a T.sub.g of less than about -20.degree. C., about 10 to about 75 weight percent of a hard monomer whose homopolymer has a T.sub.g of greater than about 30.degree. C., about 1 to about 5 weight percent of an olefinic carboxylic acid, and about 0.5 to about 5 weight percent of a cross-linking agent. Typically, the polymer comprises less than about 1 weight percent surfactant and has a T.sub.g of about -50.degree. to about 50.degree. C. and an average particle size of less than about 250 nm. The emulsion generally comprises at least about 40 weight percent solids and has a surface tension of at least about 45 dynes/cm.

Abstract: A process for producing a copolyester by copolymerizing the monomers from the ester interchange of at least two lower dialkyl esters of dicarboxylic acid and glycol using a novel catalyst system. The novel catalyst composition includes from about 20 ppm to about 150 ppm manganese; from about 50 ppm to about 350 ppm lithium; preferably from about 10 ppm to about 70 ppm cobalt; and from about 200 ppm to about 400 ppm antimony, all amounts being based upon the expected yield of the copolyester. The novel process to make copolyester includes the step of employing an effective catalytic amount of manganese and lithium in an ester interchange reaction where the lower dialkyl esters and glycol produce a monomer mixture; and using an effective catalytic amount antimony in a copolycondensation reaction of the monomers.

Abstract: A fluorescent pigment includes a fluorescent dye and a resin carrier which is the polyamide reaction product of a diamine and a diacid. The fluorescent pigments are especially useful to color plastics and have improved resistance to plateout during molding. The pigments may be melt-blended with plastic to provide a color concentrate. The polyamide resins have a molecular weight in the range of 3,000 to 50,000 and may be readily ground to micron sized particles.

Abstract: A process for preparing polymer non-aqueous dispersions to be formulated together with a binder component in coating compositions, which comprises the steps of: (1) emulsion polymerizing a hydroxy group containing .alpha.,.beta.-ethylenically unsaturated monomer, a polyfunctional .alpha.,.beta.-ethylenically unsaturated monomer and an .alpha.,.beta.-ethylenically unsaturated monomer different therefrom by using a water-soluble polymerization initiator, preferably a persulphate, in a soap free system or in the presence of an ester group containing anionic or cationic surfactant; adding an organic solvent, preferably comprising an amphipathic organic solvent, to a resultant polymer aqueous dispersion; and then adding a basic compound catalyst when the anionic surfactant is used or an acidic compound catalyst when the cationic surfactant is used, to thereby hydrolyze completely said surfactant and water-soluble polymerization initiator at a temperature not exceeding 95.degree. C.

Abstract: Electrophoretic media based on polymers with novel structures are disclosed. In one preferred embodiment, the polymers are formed by cross-linking polymerization of N,N-dimethylacrylamide with ethyleneglycol methacrylate. In another preferred embodiment, the polymers are formed by cross-linking polymerization of N,N-dimethylacrylamide and hydroxyethylmethacrylate with N,N-dimethylbisacrylamide.

Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.

Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.

Abstract: A process for producing a copolyester by copolymerizing the monomers from the ester interchange of a lower dialkyl ester of terephthalic acid and glycol and the direct esterification of a dicarboxylic acid and glycol using a novel catalyst system. The novel catalyst composition includes from about 20 ppm to about 150 ppm manganese; from about 50 ppm to about 350 ppm lithium; preferably from about 10 ppm to about 70 ppm cobalt; and from about 200 ppm to about 400 ppm antimony, all amounts being based upon the expected yield of the copolyester.

Abstract: A process for preparing polymer non-aqueous dispersions to be formulated together with a binder component in coating compositions, which comprises the steps of: (1) emulsion polymerizing a hydroxy group containing .alpha.,.beta.-ethylenically unsaturated monomer, a polyfunctional .alpha.,.beta.-ethylenically unsaturated monomer and an .alpha.,.beta.-ethylenically unsaturated monomer different therefrom by using a water-soluble polymerization initiator, preferably a persulphate, in a soap free system or in the presence of an ester group containing anionic or cationic surfactant; adding an organic solvent, preferably comprising an amphipathic organic solvent, to a resultant polymer aqueous dispersion; and then adding a basic compound catalyst when anionic surfactant is used or an acidic compound catalyst when the cationic surfactant is used, to thereby hydrolyze completely said surfactant and water-soluble polymerization initiator at a temperature not exceeding 95.degree. C.

Abstract: Polyarylates formed by reacting the diester of a dihydric phenol such as bisphenol-A and at least one aromatic dicarboxylic acid in the presence of an esterification catalyst is provided with improved color by the addition of cobalt during polymerization. The amount of cobalt can be reduced and an additional amount of an ultramarine blue pigment can be added to the reaction mixture to maintain the color improvement.

Abstract: Water-soluble crosslinkable compounds which are obtainable by reaction of reaction products, containing halogenohydrin groups, of ammonia or mono- or polyamines and an epihalogenohydrin or 1,3-dihalogeno-2-hydroxypropane with inorganic bases and subsequent reaction of the resulting compounds, which contain epoxy groups, with halogen-free acids or derivatives thereof to give compounds containing 1-acyloxy-2-hydroxypropyl groups are used for providing paper with a wet-strength finish, for aftertreatment of cellulose dyed with reactive and direct dyestuffs and for finishing wool.

Abstract: A water-soluble, thermosetting resin comprising units derived from tris(2-aminoethyl)amine, and preferably units derived from dicyandiamide and/or epichlorohydrin, is useful as an accelerator in paper sizing, e.g. using an alkyl ketene dimer.

Abstract: Polyamide solutions for imparting wet strength to paper are stabilized by acidifying uncrosslinked polyamide solutions prior to storage or prior to crosslinking with epichlorohydrin to form polyamide resins. The acidification of the uncrosslinked solutions allows for storage without refrigeration. The acidification prior to crosslinking results in wet strength resins that are stable at solids concentrations of at least 30% and that exhibit high strength when the resins are post cooked to a viscosity of between about 325 and 425 cps.

Abstract: Polyimide film prepared from a precursor solutions of polyamic acid in a solvent can be dried during or following the thermal or chemical conversion step, which produces a polyimide, by adding to the solution a small amount of an alkyl ester of phthalic, terephthalic, or isophthalic acid, casting the solution on a flat surface and heating the solution on the flat surface at about 100.degree.-200.degree. C.; then, removing the resulting partially converted film from the flat surface and heating it, under restraint, to about 200.degree.-375.degree. C., to bring about complete conversion and remove virtually all of the solvent. Polyimide films are useful in various applications where high temperature resistance is required, including composites for aerospace applications and for circuit boards for electronic equipment.

Abstract: Disclosed are novel wet strength resins for paper, said resins being derived by reacting an epihalohydrin, such as epichlorohydrin, with a polyamino-copolyamide derived by reacting methylbisaminopropylamine with (a) a diester of oxalic acid and (b) a diester of a saturated dicarboxylic acid containing at least 4 carbon atoms, the mole ratio of (a) to (b) being from about 0.25:1 to about 10:1.

Abstract: Polyesters containing significant amounts of dicyclopentadiene are produced and used in emulsion form. Superior physical properties, including low linear shrinkage, are obtained.

Abstract: Disclosed is a novel process for producing water-soluble, cationic resins containing halohydrin functionality from basic polyaminopolyamides containing secondary amine functionality without the use of epihalohydrin. The process of this invention comprises reacting the basic polyaminopolyamide in aqueous medium with an allyl halide to form allyl substituents on tertiary nitrogen atoms, converting the allyl substituents to halohydrin moieties by reaction with hypohalous acid and then maintaining the resulting solution at a pH of at least 7.0 until the Gardner-Holdt viscosity of the solution at 24% solids and 25.degree. C. reaches at least B.

Abstract: The present invention relates to macromolecular compositions crosslinked by a novel bridge having the formula --NR.sup.x --CH.dbd.N--CO--. This novel bridge is obtained by reacting a macro-molecule, preferably a polymer, having at least two amidocarbonyl groups with a compound having at least two formylamido groups in an aqueous medium under highly acidic conditions. The crosslinking bridge formed by the reaction of this invention is produced in accord with the following formula: ##STR1## Compositions containing macromolecules having at least two amidocarbonyl groups and a compound having at least two formylamido groups can act as viscosifying or gelling agents for aqueous acids where when added to aqueous acids, crosslinking occurs. Acids gelled in this manner have important use in the recovery of oil and natural gas from subterranean formations.

Abstract: Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with an aminopolyamide-polyureylene intermediate derived by reacting methylbisaminopropylamine with oxalic acid or a diester of oxalic acid and with urea.

Abstract: Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with a polyaminopolyamide derived by reacting methylbisaminopropylamine with oxalic acid or mixture containing oxalic acid and one or more different saturated dicarboxylic acids or their esters.

Abstract: Polyesters containing significant amounts of dicyclopentadiene are produced and used in emulsion form. Superior physical properties, including low linear shrinkage, are obtained.

Abstract: A process is described for making highly concentrated solutions of nylon salt in which the diamine is added in two portions, one before and one after a step in which water is evaporated from a solution of maximum solubility.

Abstract: A water-soluble pressure-sensitive adhesive composition is described containing a polymerization product obtained by the solution polymerization of a water-soluble ethylenically unsaturated monomer in the presence of an alcoholic plasticizer having a molecular weight of less than about 3,000 and which is a liquid at room temperature, selected from the group consisting of polyether polyols and polyhydric alcohols, wherein the polymerization product contains as a polymer component at least an addition copolymer of the water-soluble ethylenically unsaturated monomer and the alcoholic plasticizer.

Abstract: Production of spinnable polyhexamethylene adipamide of high molecular weight from adiponitrile, hexamethylene diamine, water and additives, preferably continuously in a reaction cascade and in a finisher as the final stage, catalytically accelerated by catalysts as disclosed.It has now been discovered that polyamides can be produced from dinitriles, diamines and excess water in the presence of catalysts selected from the group consisting of: (1) oxygen-containing phosphorous compounds; (2) oxygen-containing boron compounds; (3) acidic oxygen-containing sulfur compounds; and (4) hydrogen halide and ammonium or ammonium alkyl salt thereof.

Abstract: The invention relates to a composite polymeric material suitable for biological and medical applications and to the method for preparation thereof. The composite material consists of 1-99 wt. % of hydrophilic polymer or copolymer based on methacrylic or acrylic esters, 1-99 wt. % of fibrillar collagen, and up to 2.5 wt. % of a crosslinking agent, based on both polymeric components. The composite material may further comprise biologically active compounds and other auxiliary materials, as fillers and/or plasticizers. The composite material is prepared by dispersing the fibrillar collagen in a solution or a highly swollen dispersion of the synthetic hydrophilic polymer or copolymer in a lyotropic agent and the subsequent removal of the lyotropic agent, thus forming a matrix of the synthetic polymer or copolymer penetrated by fibrillar collagen or vice versa. The composite material may be applied on a solid support or reinforced with glass, plastics, cellulose, or metallic materials.

Abstract: This invention relates to novel terpolymers of 3-methylcyclopentene, 2-cyclopentene-1-acetic acid and sulfur dioxide. Positive electron beam resist media prepared from the subject terpolymers possesses excellent sensitivity and development latitude and unexpectedly are developable with conventional aqueous alkaline developers.

Abstract: The present invention relates to an amphoteric resin obtained by condensation of polyethylenepolyamine and butane-1,2,3,4-tetra-carboxylic acid. The present invention can provide several forms of amphoteric resins such as linear structure, somewhat cross-linked water insoluble and water swellable structure and water insoluble and cross-linked structure, since the resin contains in its repeating units an imino group, a carboxylic radical and an amido group. The resin can form a chelate with several kinds of metal ions. Furthermore, the resin can also be modified by introducing several kinds of functional groups to bestow upon the resin particular chelating ability. Therefore the invention can provide novel resins, which have a strong chelating faculty and are suitably used for removing and recovering agents of heavy metals and noble metals.

Abstract: Disclosed are novel wet-strength resins for paper, said resins being derived by reacting an epihalohydrin, such as epichlorohydrin, with a polyaminopolyamide derived by reaction of a diester of oxalic acid, such as diethyl oxalate, and methylbisaminopropylamine.

Abstract: Concentrates of from 20 to 50% by weight of titanium dioxide in polycaprolactam are produced by a process in which a 5-15% strength by weight aqueous suspension of titanium dioxide is metered into a solution of caprolactam in water at from 100.degree. to 150.degree. C. at the same rate at which water is distilled off, and after the water has been distilled off the resulting mixture is polymerized at from 240.degree. to 280.degree. C.

Abstract: Thermosetting polycondensates containing amide and imide groups which are obtained by reacting 1,2,3,4-butanetetracarboxylic acid or its anhydride with one or more aliphatic, cycloaliphatic or aromatic diamines and one or more oxadicarboxylic acids or oxadicarboxylic acid esters of the general formulaROOC--CH.sub.2 --O--(CH.sub.2).sub.2 --O--.sub.n CH.sub.2 --COORwhere R is hydrogen or alkyl of 1 to 6 carbon atoms and n is 0 or an integer from 1 to 10, in a water-soluble organic solvent and/or water, at from 80.degree. to 200.degree. C. These polycondensates are useful as wire enamels, impregnating agents and adhesives.

Abstract: Wire coating formulations are provided by heating a mixture of aromatic dianhydride, water and a monoalkyl glycol ether, followed by the addition of organic diamine. The resulting mixture is a stable wire coating enamel capable of forming flexible wire enamels upon cure.

Abstract: This invention discloses silicone-alkyd resins and a method for their preparation which overcomes prior art problems in the manufacture of such resins. The method consists of reacting all of the components of the silicone-alkyd resin together essentially simultaneously.

Abstract: Modified thermoplastic polyester compositions are provided which comprise (a) a poly(1,4-butylene terephthalate) resin or polyester copolymer and, optionally, a poly(ethylene terephthalate) resin and (b) a modifier therefor comprising a combination of a polyacrylate resin or a vinyl aromatic-diene block copolymer resin and a poly(1,3-butylene terephthalate), and, optionally (c) filler and/or reinforcing agent and/or (d) a flame retardant or combination of flame retardants. Modifier (b) provides enhanced resistance to impact fracture in articles molded from the compositions.

Abstract: Disclosed is a coating solution including an oligomeric polyetherimide component, an oligomeric diamine component, a solvent system and optionally water which may be coated on a substrate and polymerized to form high quality polyetherimide coatings and a process for preparing the solution.

Abstract: The present invention relates to aqueous dispersions or solutions of oligomers or polymers, polycondensates or polyaddition products containing from about 2 to 200 milliequivalents per 100 g of solids, of incorporated ammonium groups obtained by neutralizing incorporated tertiary nitrogen atoms with organic acids, characterized in that the organic acids on which the ammonium groups are based are acids which lose their acid character at temperatures in the range from about 20.degree. to 200.degree. C. in the absence of water without releasing corrosive decomposition products. The present invention further relates to a process for the production of these novel aqueous dispersions or solutions and to their use.