Abstract: Solution spun fiber obtained from resin comprising an amide-imide polymer having repeating units of the following general formula: ##STR1## wherein the fiber has tenacity of at least about 1.5 grams per denier, and elongation of at least about 10%.

Abstract: Storage stable, liquid prepolymers of diphenylmethane diisocyanate containing urea and/or biuret groups are prepared by reacting an aminocrotonate with a mixture of isocyanates having a specified diphenylmethane diisocyanate isomer content. These prepolymers have isocyanate group contents of from about 5 to about 30%.

Abstract: Di-amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 0-1000 and m is 0-100; R.sub.1, R.sub.2, R.sub.5, and R.sub.6 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; and R.sub.3 and P.sub.4 are each independently selected from the group consisting of --C.sub.2 H.sub.4 --; and --C.sub.3 H.sub.6 --; and the diasteromeric salts thereof.

Abstract: This invention relates to a polyurea-imide RIM composition, molded articles of a polyurea-imide RIM composition, and a method of forming a polyurea-imide molded article.

Abstract: A coating composition in which the binding agent is a two-component system containing a) a polyisocyanate component and b) an isocyanate-reactive component and contains b1) specific ester group-containing secondary polyamines, b2) specific moisture-activatable blocked polyamines and b3) optionally other known compounds containing isocyanate-reactive groups, and a process for preparing coated substrates from this coating composition.

Abstract: A polyurethaneurea elastomer obtained by reacting a polyisocyanate component obtained by reacting 1,5-naphthalene diisocyanate with a polyol, with an amine component consisting essentially of an amine compound of the formula (1): ##STR1## wherein R is a bivalent polyalkylene polyether or polyalkylene polyester having an average molecular weight of at least 200, which may contain unsaturated bonds in the polyalkylene.

Abstract: A coating composition is described comprising two components that are reactable with each other to cure the coating. The two components are:(a) a carboxyl-functional polyurethane component that is the reaction product of:(i) a polyisocyanate compound, and(ii) a compound comprising at least one acid group and at least one isocyanate-reactive group,(b) a component comprising at least two groups that are reactive with the epoxy groups on the polyurethane compound.

Abstract: The present invention relates to the continuous production of polyurethane and polyurethane urea elastomers by reaction of polyisocyanates with isocyanate-reactive compounds in a mixing nozzle.

Abstract: An insulated wire comprising a conductor and an insulating coating made from a polyamideimide base coating, which polyamideimide is made of an acid component and a diisocyanate component containing 10 to 80 % by mole of an aromatic diisocyanate compound of the formula: ##STR1## or which polyamideimide is made of an diisocyanate component and an imidodicarboxylic acid that is a reaction product of an acid component and a diamine component, in which the diamine component contains an aromatic diamine compound of the formula: ##STR2## and/or the diisocyanate component contains the above aromatic diisocyanate compound in such an amount that a total amount of the aromatic diamine compound and the diisocyanate compound is from 10 to 80 % by mole based on the total amount of the whole diamine component and the whole diisocyanate component.

Abstract: The present invention relates to a process for the preparation of substantially closed-cell rigid foams containing urethane, urea, biuret, and isocyanurate groups comprising reacting, at an index of greater than 110, organic polyisocyanates with relatively high molecular weight polyots consisting of mixtures of (i) polyesters containing at least two hydroxyl groups and having an OH value of greater than 150 and/or polyethers containing at least two hydroxyl groups and having an OH value of greater than 200, and (ii) polyoxyalkylene polyethers containing ethylene oxide residues and least two hydroxyl groups and having an OH value of less than 100, in the presence of isocyanate trimerization catalysts and water as blowing agent. The foams of the invention can optionally be prepared optionally, in the further presence chain-extending and/or crosslinking agents and auxiliaries. and/or additives.

Abstract: The present invention relates to water dilutable, urethane group-containing polyester polyols having an acid number of 6 to 45 mg KOH/g, wherein 25 to 100% of the acid groups are neutralized by bases, a hydroxyl number of 20 to 250 mg KOH/g, a molecular weight (M.sub.w) of 2,000 to 150,000 and a urethane content (--NH--CO--O--) of 2 to 16% by weight, wherein the polyester polyol is the at least partly neutralized reaction product ofa) 35 to 90% by weight of branched polyester polyols having a hydroxyl number of 40 to 600 and prepared froma1) 0 to 60% by weight of monocarboxylic acids,a2) 6 to 65% by weight of di- and/or tricarboxylic acids or their anhydrides,a3) 10 to 70% by weight of alcohols,a4) 0 to 35% by weight of monoalcohols,a5) 0 to 30% by weight of hydroxycarboxylic acids, aminocarboxylic acids, lactones, lactams and aminoalcohols anda6) 0 to 45% by weight of polycarbonate polyols,b) 0.5 to 8.5% by weight of hydroxycarboxylic acidsc) 0 to 15% by weight of compounds containing OH, NH and/or NH.sub.

Abstract: The binder composition of this invention contains a beta-hydroxy urethane functional material and a polycarboxylic acid. Coated glass fibers are prepared by contacting said fibers with the binder composition of the invention and thereafter curing the composition. This invention is also an improved method of treating glass fibers by contacting them with the improved binder composition of the invention.

Abstract: Disclosed is an urethane acrylate oligomer to be obtained by reacting an isocyanate group-having urethane prepolymer and hydroxyl group-having acrylate and/or methacrylate, in which the urethane prepolymer is one having isocyanurate rings and the hydroxyl group-having acrylate and/or methacrylate comprises 4-hydroxybutyl acrylate and/or 4-hydroxybutyl methacrylate. The oligomer has a much lower viscosity of itself and a much higher ultraviolet-hardening speed, than the conventional urethane acrylate oligomers, and may be hardened to give a film having excellent physical properties of flexibility, heat resistance, weather resistance of hot-cold repetition cycles and scratch resistance.

Abstract: Oxidatively crosslinking essentially isocyanate-free urethane resins, obtainable by reactingA) 100 parts by weight of an ester of(a.sub.1) an aliphatic C.sub.3 -C.sub.8 -alcohol having three or more hydroxyl groups and(a.sub.2) an unsaturated C.sub.8 -C.sub.40 -fatty acid and(a.sub.3) if required, an aliphatic or aromatic polycarboxylic acid of 4 to 20 carbon atoms or an anhydride thereof, in amounts of up to 60% by weight, based on the fatty acid a.sub.2),the ester containing sufficient free hydroxyl groups to correspond to an OH number of 50-150 mg of KOH/g, withB)(b.sub.1) 3-120 parts by weight of C.sub.5 -C.sub.15 -polyhydroxycarboxylic acids having two or more hydroxyl groups and(b.sub.2) 10-100 parts by weight of an aliphatic or cycloaliphatic polyisocyanate or a mixture thereof,at 50.degree.-150.degree. C. in the presence of a nonpolar solvent which is inert to isocyanates, are suitable for use as printing ink components.

Abstract: Disclosed is a novel linear urethane-amide-imide copolymer composition obtained from first reacting X mols of diol compound, which had been dissolved in an inert organic solvent, with Y mols of diisocyanate compound at room temperature to produce an intermediate reaction product, followed by reacting the intermediate reaction product with Z mols of trimellitic anhydride at elevated temperatures, wherein Y is greater than X (i.e., the amount of diisocyante groups is in excess) and approximately equals the sum of X plus Z. The polyurethane copolymer composition obtained from this process contains urethane, amide and imide groups on the polymer backbone, exhibits excellent mechanical and electric properties and heat resistance, and does not suffer from the phase separation problems observed from polyurethane-polyamideimide blends.

Abstract: The present invention is directed to an elastic polyurethane obtained by copolymerization of a polymer diol of a polyesterpolycarbonate diol utilizing a long-chain diol having methyl branches or a mixed diol of a polyester diol and a polycarbonate diol, with an organic diisocyanate and a chain extender. Elastic fibers obtained by spinning said polyurethane have low tensile stress at low tensile strain zone and high tensile stress at high tensile strain zone.

Abstract: This invention relates to insulated wires having good heat resistance and solderability. In particular, wires coated with a polyimide resin or an imide-modified polyurethane resin are provided. They can each be produced by coating a conductor with an insulating coating composition which contains a polyamic acid represented by the following formula: ##STR1## wherein R.sup.1 means a particular tetravalent organic group, R.sup.2 denotes a specific divalent organic group, X is an alkylene or alkylenephenylene group, and n stands for a positive integer.

Abstract: Melt processable polyurethaneureas are prepared from a diisocyanate, a polyglycol, a diol chain extender and an amine terminated polyether. Water may be included as a reactant, and the polymer may contain an additive such as a radiopaque material and a coating of an antithrombogenic agent or an antimicrobial agent. The invention includes a one-pot bulk polymerization method for preparation of the polymers.

Abstract: A process for preparing an isocyanate having at least two --N.dbd.C.dbd.O groups is provided which comprises preparing a substituted aromatic amine having at least two --NH.sub.2 groups, recovering the substituted aromatic amine having at least two --NH.sub.2 groups, and preparing an isocyanate from the substituted aromatic amine having at least two --NH.sub.2 groups by (1) contacting the substituted aromatic amine with CO.sub.2 under conditions sufficient to produce the corresponding ammonium carbamate salt, and reacting the ammonium carbamate salt with an electrophilic or oxophilic dehydrating agent under conditions sufficient to produce the corresponding isocyanate, or (2) contacting the substituted aromatic amine with CO.sub.

Abstract: A polyurethane polyanhydride oligomer is disclosed as well as a process for its preparation. The process involves the following steps:(a) reacting a hydroxyl functional 2,4-dienoate ester with a polyisocyanate under conditions sufficient to react essentially all of the isocyanate groups to form a polyurethane polyene; and(b) reacting by Diels Alder addition the unsaturated double bonds of the polyurethane polyene with an unsaturated polycarboxylic acid anhydride containing material. Also disclosed is a curable composition containing hydroxyl functional material and the aforedescribed polyurethane polyanhydride oligomer.

Abstract: A non-yellowing urethane adhesive based on a polyurethane prepolymer which is prepared by reacting a specific combination of polyhydroxy compounds and an isocyanate compound. The polyhydroxy compounds include a polyalkylene ether diol, a polyalkylene ether triol, and a polyester polyol. The combination of these polyhydroxy compounds and an isocyanate compound results in an adhesive composition which has exceptionally good resistance to high temperature, humidity, and sustained UV radiation, particularly when applied to fabric-like materials.

Abstract: A method for extending the pot-life of a curable composition comprising a mixture of at least one active hydrogen-containing material, such as a polyol or polyamine, and a polyisocyanate, which method comprises incorporating within the mixture a pot-life extending amount of a polyanhydride having an average of at least two anhydride groups per molecule.

Abstract: Disclosed is a makeup material for human use containing a shape memory polymer shaped into fine spheres. The shape memory polymer used is a polyurethane that is obtained by polymerizing with the prepolymer method a composition of a bifunctional diisocyanate, a bifunctional polyol, and a bifunctional chain extender with active hydrogen groups in the mole ratio of diisocyanate:polyol:chain extender=2.00-1.10:1.00:1.00-0.10. The polyurethane is preferred to have approximately equal amounts of NCO groups and OH groups at its ends, and a glass transition point above the human body temperature, and a crystallinity value between 3 to 50 wt %.

Abstract: A polycarbonate polyol composition which can be used to prepare polycarbonate(meth)acrylate and urethane(meth)acrylate compositions is obtained by the ester interchange reaction of a polycarbonate diol composition with a triol and/or tetraol. The (meth)acrylate compositions have excellent photo and electron beam curability and the cured layers prepared therefrom have excellent heat resistance under moisture conditions.

Abstract: The present invention provides a hydrophilic polycarbodiimide polymer which has not been provided hitherto, a pulp-like material consisting of said polycarbodiimide polymer, and a process for producing said polycarbodiimide polymer or said pulp-like material.

Abstract: Poly(polyisocyanate-alkali metal silicate) products are produced by mixing and reacting an alkali metal silicate glass powder with a polyisocyanate compound and may be produced in the form of a pre-polymer, a solid or a cellular solid. These products may be used as flame-resistant, sound and thermal insulation, as a coating agent and for filling cracks and cavities.

Abstract: Modified polyurethane products, exhibiting good physical strength and excellent heat resistance, and especially improved heat sag properties, are prepared by blending a polyol component containing at least 1% of at least one polynuclear aromatic polyol or a derivative thereof, or a mononuclear diol or a derivative thereof, at a temperature of 100.degree.-180.degree. C., to form a first liquid component; admixing the first liquid component with a second liquid component containing a diisocyanate or polyisocyanate, one of the two liquid components containing a catalyst; and reacting and molding the admixture in a mold kept at a temperature of from 80.degree.-140.degree. C. by reaction injection molding.

Abstract: The present invention relates to solutions of polyamide-imides which can be spun and shaped, and to a process for their preparation.They contain 5 to 30% of a polyamide-imide in a solvent mixture comprising 40-80% by weight of butyrolactone and 20-60% of an aprotic amide solvent. They are obtained by the reaction, in butyrolactone as polycondensation solvent, of a diisocyanate, an aromatic acid anhydride, optionally an alkali or alkaline-earth metal dicarboxybenzenesulfonate, and optionally another aromatic diacid, the concentration of polyamide-imide being from 15 to 36%, followed by dilution in an amide solvent, at a temperature between 120.degree. and 165.degree. C.The solutions obtained are clear at room temperature, are storable, and possess improved color.

Abstract: Melt processable polyurethaneureas are prepared from a diisocyanate, a macroglycol, a diol chain extender and a diamine chain extender. Water may be included as a reactant, and the polymer may contain an additive such as a radiopaque material. The invention includes a one-pot bulk polymerization method for preparation of the polymers.

Abstract: Disclosed herein are a novel and highly refractive S-alkyl thiocarbamate base resin useful in preparing lenses and a process for producing the resin comprising reacting one or more of polyisocyanate compounds and one or more of mercapto compound having at least one hydroxyl group, a plastic lens made of the resin, and a process for making a plastic lens of high profile regularity from the resin by using internal mold releasing agents in the casting polymerization process.

Abstract: A polyisocyanate composition comprising a reaction product of a stoichiometric excess of an organic polyisocyanate and:(i) a polymeric polyol having an average nominal hydroxyl functionality greater than 2 and an average hydroxyl equivalent weight of from about 500 to about 5000, and(ii) a polymeric polyamine having an average nominal primary and/or secondary amino functionality of from about 2 to about 3 and an average amine equivalent weight of from about 500 to about 5000, the polyol and the polyamine having glass transition temperatures below room temperature. The composition is especially useful in the production of elastomers by the RIM process.

Abstract: Polyurethanes are produced from compositions comprising at least one relatively high equivalent weight component and at least one chain extender selected from the group consisting of heterocyclic diamines, diaromatic disulfides, alkyl ethers of halogen-substituted aromatic diamines, polysubstituted alkyl diamines and alkyl acid esters of halogen-substituted diamino phenols of designated structures. Polyurethanes having high thermal stability, high tear strength and high modulus are produced.

Abstract: The present invention is directed to isocyanate derivatives containing about 2 to 30% by weight of carbodiimide groups, --N.dbd.C.dbd.N--, on a statistical average at least about 0.8 carbodiimide groups per molecule, about 5 to 200 milliequivalents per 100 g of solids of chemically incorporated sulfonate groups and, optionally, 0 to about 25%, based on solids, of chemically incorporated ethylene oxide units, --CH.sub.2 --CH.sub.2 --O--, in polyether chains. The present invention is also directed to a process for the preparation of these isocyanate derivatives and to their use as additives for aqueous dispersions or solutions of plastics containing carboxyl groups or groups convertible into carboxyl groups.

Abstract: A polyisocyanate prepolymer composition comprising the reaction product of(a) an organic polyisocyanate or polyisocyanate mixture(b) a high molecular weight isocyanate-reactive compound or mixture thereof having a molecular weight from about 1,000 to 10,000(c) a low molecular weight isocyanate-reactive compound or mixture thereof having a molecular weight of about 60 to below 1,000wherein the weight ratio of low to high molecular weight compounds is in the range 40-1,000.

Abstract: Polyurethane/polyisocyanurate rigid foams having low thermal conductivity are prepared from isocyanate-terminated quasi-prepolymers prepared from polyester polyols derived from phthalic anhydride or from the transesterification of polyethylene terephthalate scrap.

Abstract: An end portion for a container having a preformed opening therein and an easy-open closure system therefor, the closure system comprising an exterior tape over the opening which is manually removable, the tape being adhered by an adhesive which comprises the reaction mixture of an aryl isocyanate, an aliphatic glycol, and a defined mixture of hydroxy terminated polyesters.

Abstract: The present invention is directed to a process for coating a substrate containing aramid fibers by coating the substrate with a two-component polyurethane-forming composition which cures to form a tough, flexible polyurethane coating which is capable of withstanding at least 3000 temperature cycles between a temperature of -65.degree. F. and a temperature of 160.degree. F. and back without developing microcracks. The present invention is also directed to the coated substrate produced in accordance with this process.

Abstract: This invention relates to improved polyurethane systems prepared by reacting an organic polyisocyanate with a hydroxyl containing compound, the improvement comprising utilizing mono tertiary-alkyltoluenediamine where the tertiary-alkyl group is ortho to an amine group as a chain extender or component thereof. The ortho-tertiary-butyltoluenediamine isomer is particular effective for use in reaction injection molding of polyurethanes and can be formulated with polyol as a chain extender mix.

Abstract: N,N'-dialkyl- and diaylphenylenediamines are effective curing agents in combination with other polyamines and polyols in reaction injection molding for a diverse class of polyisocyanates. The diamines provide a broad spectrum of cure times, as well as giving elastomers an interesting and useful diversity of properties. Such polyamines may be used as a constituent in a blend of polyamines as the isocyanate-reactive component, in which case the elastomer may be viewed as predominantly a polyurea, or as a constituent in a blend with polyols, in which case the elastomer may be viewed as an elastomer with both urethane and urea segments.

Abstract: The invention relates to essentially linear polyurethane elastomers, having improved properties, made from polyester or polyether diols, diisocyanates and chain extenders, the latter having liquid-crystalline properties; and also films and, in particular, fibres which are prepared on the basis of such liquid-crystalline polyurethane components and are shaped thermoplastically (via melting) or from solutions (by solution spinning processes). The invention furthermore relates to an appropriate process for the preparation of the polyurethane elastomers, particularly of PU elastomer fibres (Elasthan and Spandex fibres).

Abstract: The present invention is directed to polyisocyanates which have improved compatibility with polyester coreactants and improved solubility in apolar solvents, the polyisocyanates containing, based on solids,(a) about 15 to 85 wt. % of an isocyanurate group-containing polyisocyanate based on hexamethylene diisocynate and(b) about 15 to 85 wt. % of a biuret group-containing polyisocyanate based on hexamethylene diisocyanate.The present invention is additionally directed to two-component polyurethane coating compositions based on the above polyisocyanates and branched polyester polyols. Finally, the present invention is directed to a process for preparing the polyisocyanate.

Abstract: Binders contain(A) copolymers of(a) from 5 to 70% by weight of monoesters of acrylic acid and/or methacrylic with dihydric to hexahydric C.sub.2 -C.sub.18 -alcohols,(b) from 0.1 to 80% by weight of esters or amides of acrylic acid and/or methacrylic acid with monofunctional C.sub.2 -C.sub.20 -alcohols or -amines which have an open-chain and/or cyclic urea group in the ester or amide radical,(c) from 1 to 60% by weight of esters of acrylic acid and/or methacrylic acid with monofunctional C.sub.1 -C.sub.20 -alcohols and(d) from 0 to 60% by weight of other comonomers, and(B) polyisocyanates, some or all of whose isocyanate groups may be blocked with CH--, NH--- or OH--acidic blocking agents and which have an isocyanate functionality of from 2.5 to 6.These binders are employed for the preparation of polyurethane finishes, which are used to produce coatings.

Abstract: A process for the manufacture of polyester polyalcohols with amino and amide groups by the reaction of polyester polyalcohols with polyamines is characterized in that unsaturated polyester polyalcohols if necessary in admixture with saturated polyester polyalcohols are used as polyester polyalcohols, and low molecular weight, aliphatic polyamines with two primary amino groups are used as polyamines.

Abstract: Heat resistant organic fibers comprising a wholly aromatic polymer having amide group and/or imide group, said fibers having properties satisfying the following formulasTm.gtoreq.350.degree. C.,Tm-Tex.gtoreq.30.degree. C.Xc.gtoreq.10%DE.gtoreq.10%DSR(Tm).ltoreq.15%, and ##EQU1## wherein Tm is a melting point; Tex is an exotherm starting temperature; Xc is a degree or crystallization; DE is an elongation; DSR is a dry shrinkage factor at Tm; and DSR(Tm+55.degree. C.) is a dry shrinkage factor at Tm+55.degree. C. The process for producing the fibers is also disclosed.

Abstract: Polyamide polymers are made by reacting fluorinated xylylene diamine or the corresponding isocyanate derivatives with polycarboxylic moieties such as anhydrides or acid chlorides. The polymers thus formed may be cast into films having superior impermiability to gases and moisture.

Abstract: Carboxy-terminated prepolymers are prepared by the reaction of a diamine, preferably an aromatic diamine, or a mixture thereof with a triamine, with a carboxy anhydride such as trimellitic anhydride and a dianhydride such as bisphenol A dianhydride. The prepolymers, or functional derivatives thereof, are then reacted with a diisocyanate or diamine, or a mixture thereof with a triisocyanate or triamine, preferably an aromatic diisocyanate, to produce copolyamideimides. The products prepared using triamines or triisocyanates are crosslinked. Other products containing alkyl or alicyclic groups attached to aromatic radicals can be oxidatively crosslinked, e.g., by heating in air.

Abstract: In the production of elasthane threads by solution spinning of polyurea polyurethanes by conventional spinning processes, excellent stabilization against light and noxious gases are obtained if at least one component of the system to be spun contains tertiary amino groups and the substances used as antioxidizing agents are phenols of the kind which do not form colored nitro compounds.

Abstract: The compounds of the present invention are obtained by the reaction of carbamoyl lactams (from lactams and polyisocyanates) with polyhydric alcohols or monoamino alcohols in the presence of catalytic quantities of a strong basic catalyst, e.g. an alkali metal alcoholate, at elevated temperatures.The polyols contain urea groups and either ester or amide groups and correspond to formula (I) or (II) ##STR1## The polyols are crystalline, relatively high melting compounds which are used as reactants for the synthesis of polyurethane elastomers, in particular in the form of finely divided components in one-component polyurethane reaction mixtures.

Abstract: A polymeric or plastic coating is provided which protects coated structures by forming an intumescent insulative fire resistant barrier. The coating is formed from the product of mixing an aromatic polyisocyanate, an aromatic polycarboxylic compound and about 1 to about 20% by weight of furfuryl alcohol. The structure to be protected is coated with the product of the mixture and the coating is dried. An intumescent polyimide fire resistant foam is formed when the coating is exposed to a (non-flame) heat source at temperature ranging from about 110.degree. C. to about 140.degree. C.

Abstract: A process is described for increasing the molecular weights of thermoplastic polyamides and polyesteramides by fluxing and homogenizing the subject polymers which have been prepared by the reaction of an organic diisocyanate and a dicarboxylic acid with an effective amount of an organic diisocyanate reagent at a temperature of at least about 150.degree. C.