Abstract: Novel polymeric fluorocarbon siloxane represented by the formula: ##STR1## and corresponding polymeric branched structures wherein R.sub.a is a perfluoroalkyl radical, R.sub.b is an aminoalkyl or substituted aminoalkyl radical and R.sub.c hydrocarbyl, substituted hydrocarbyl phenyl, substituted phenyl or cyanoalkyl radical are shown to form stable aqueous emulsions without the use of volatile organic solvents and by a low energy processing. These emulsion are found to be highly hydrolyzed in solution without leading to precipitation via intermolecular condensation The emulsions when applied to substrates impart both oil and water repellent properties as well as improved lubricity.

Abstract: A hardenable monomer composition useful for flooring composition, grouts, mortars and the like comprises a mixture of crosslinkable acrylic monomer, carbon black and/or polyester- or polyether-methane oligomer having at least two polymerizable double bonds and a paraffin oil.The monomer is preferably of the formula I ##STR1## and there is preferably present other monomers, particularly hydroxypropyl methacrylate.

Abstract: The present invention relates to two-component, aqueous polyurethane coating compositions which may be cured at ambient temperature and which containI) a polyisocyanate mixture having an NCO content of 10 to 47% by weight and containing isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5, wherein the allophanate groups are formed from urethane groups which are based on the reaction product of an organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and a monoalcohol containing at least 1 carbon atom and having a molecular weight of up to 500, andII) a water dispersible or water soluble polyol, wherein components I and II are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to hydroxyl groups of 0.8:1 to 6:1.The present invention is also directed to the coatings prepared from these coating compositions.

Abstract: A process for producing a high-molecular weight polycarbodiimide solution by subjecting isophorone diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, tetramethylxylylene diisocyanate or a mixture thereof to decarboxylation and condensation reaction in the presence of a carbodiimidization catalyst, in which process tetrachloroethylene, trichloroethylene, tetrachloroethane, trichloroethane or a mixture thereof is used as the polymerization solvent, the monomer concentration is 18% by weight or less, and the reaction temperature is 80.degree. C. or above.

Abstract: The present invention deals with low temperature impact resistant, easily flowing, thermoplastic polyurethane elastomer compositions, comprising:A) 5-95 parts by weight of at least one thermoplastic polyurethane elastomer (A) having a Shore A hardness less hah 95; andB) 95-5 parts by weight of at least one thermoplastic polyurethane elastomer (B) having a Shore A hardness greater than 98, whereby the parts by weight of (A) and (B) total 100 parts by weight; andC) 0-60 weight percent based on the weight of (A) and (B) of a reinforcing filler.The products are prepared by melting together polyurethane elastomers (A) and (B) at temperatures of from 140.degree.-250.degree. C., preferably in an extruder, and are most preferred for the preparation of ski boots and injection molded articles for motor vehicles.

Abstract: A composition and method for consolidating proppant or gravel for propping fractures about, or for gravel packs for sand control in, wells in subterranean formations characterized by an improvement in which there is used a combination of reactants, including a capped diisocyanate that will produce polyurethane and coat the catalyst in situ. Also disclosed are specific examples of satisfactory frac fluids, diluents and catalysts for both a specially designed one-pass system and, preferably, a two-pass system of putting and consolidating the proppant in a fracture.

Abstract: A hydrophilic polyurethane prepolymer in a compatible, water-miscible solvent or solvent blend having a solids content of greater than about 10 and less than about 50 percent prepolymer in organic solvent that reacts with water at about a 1:1 ratio by volume to produce an excellent gel for use in sealing water containing structures and soil stabilization. In the cure process, the compositions of the present invention expand less than 50%, and preferably less than 30%.

Abstract: A polyurethane filleting composition which has production of electronic assemblies. The filleting composition is a self-curing polyurethane mixture which has a low dielectric constant, good thermal conductivity, and relatively long working life. The composition is a four part mixture containing:(a) a diisocyanate having the formulaOCN--[CH.sub.2 ]n--NCOwhere n=1 to 6;(b) a polyol having the formula ##STR1## where m=1 to 10; (c) a filler/curing promoter additive; and(d) a viscosity control additive.

Abstract: Novel powders useful in the slush molding process are produced by reacting an emulsion of either an isocyanate or an isocyanate reactive material with either an isocyanate reactive material or an isocyanate, depending upon the nature of the component used to make the emulsion in the presence of an at least partially blocked isocyanate and an organic carrier. The final reaction product is subsequently removed from the carrier.

Abstract: The sealant compound of this invention comprises polyurethane resin or its precursor mixed with vapor grown carbon fiber. In the compound, whisker-shaped carbon fibers with high tensile strength intertwine and form lattices. In addition, carbon fibers are anchored in the polyurethane resin. Consequently, the compound of this invention has more tensile strength than the conventional compound containing black carbon. Thus the seal consisting of the compound of this invention has high adhesion and sealing effects.

Abstract: The present invention relates to spinnable and mouldable polyamide-imide solutions as well as the process for their preparation.They contain 4 to 35% of a polyamide-imide having a polydispersity index.ltoreq.2.1 in a solvent mixture containing 45-100% by weight of DMEU and 0-55% of an aprotic polar solvent. They are obtained by the reaction, in dimethylethyleneurea of pH.ltoreq.7 as polycondensation solvent, of a diisocyanate, an aromatic acid anhydride, optionally an alkali or alkaline earth dicarboxybenzene sulphonate and optionally another aromatic dicarboxylic acid, the polyamide-imide concentration therefore being from 4 to 35%, then by dilution in a polar solvent at a temperature of between 120.degree. and 200.degree. C.The solutions thus obtained are limpid at ambient temperature, capable of being stored and have an improved color.

Abstract: A moisture-curing hot-melt composition comprising at least one isocyanate-terminated polyurethane prepolymer has improved sag-resistance while retaining high extrudability and is characterised in that the composition includes 1-17 wt %, preferably 3-6 wt %, of hydrophobic, siloxane-coated, fumed silica.Especially effective polyurethane hot-melt adhesive compositions are prepared containing 4-5 wt % of the hydrophobic, siloxane-coated fumed silica.

Abstract: A thermal transfer adhesive composition which is applied after electronic components have been installed on a printed wiring board, comprising:(a) 30 to 70 weight percent of an aliphatic diisocyanate or triisocyanate prepolymer;(b) 5 to 15 weight percent of a polyether diol or triol;(c) 20 to 40 weight percent of castor oil;(d) 5 to 20 weight percent of an epoxy resin containing 2 or more hydroxyl group;(e) 0.006 to 0.008 weight percent of a catalyst for the reaction of isocyanate groups with hydroxyl groups. The cured product is hydrolytically stable at 185.degree. F. and 95 percent relative humidity and has a good storage life when frozen. Alternatively, the composition may also include a pigment.

Abstract: A hydrophilic polyurethane prepolymer in a compatible, water-miscible solvent or solvent blend having a solids content of greater than about 10 and less than about 50 percent prepolymer in organic solvent that reacts with water at about a 1:1 ratio by volume to produce an excellent gel for use in sealing water containing structures and soil stabilization. In the cure process, the compositions of the present invention expand less than 50%, and preferably less than 30%.

Abstract: An encapsulating and patching elastomer for concrete repairs including a two component urethane system including a polyol reacted with a diisocyanate or a mixture of diisocyanates and a hindered amine, and an aggregate filler. The elastomer polyester filler has a hardness of over 50 on the Shore A scale. The subject invention further provides a method of making an encapsulating and patching elastomer for concrete repairs, the method including the steps of dissolving the two component urethane system with the hindered amine. The mixture is applied as a film or patch to a concrete surface. The mixture is cured at ambient temperature for 48 to 72 hours to an elastomer having a hardness of over 50 on the Shore A scale.

Abstract: A high pressure method of molding polyurethane articles is described. A polyurethane material is formed from a cross-linkable polymer comprising the reaction product of a polyol and polyisocyanate, said polymer containing a high activation temperature catalyst and a high surface area filler. The material is processed to a gum state suitable for high pressure molding. The material and process are particularly suitable for forming small, intricately shaped articles. Such articles are also described.

Abstract: Thermosetting reactive systems, comprising(a) at least one epoxide resin,(b) at least one isocyanate resin,(c) a reaction accelerator of the formula I ##STR1## in which R.sup.1 is --(CR.sup.4 R.sup.5).sub.n - with n=2-24, phenylene or naphthylene which is unsubstituted or mono- or poly-substituted by halogen, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.1-C.sub.4 alkoxy or C.sub.3 -C.sub.8 dialkylaminoalkyl, or a radical of the formulae ##STR2## R.sup.2 and R.sup.3 independently of one another are C.sub.1-C.sub.12 alkyl, phenyl or naphthyl which are unsubstituted or mono- or poly-substituted by halogen, nitro, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.1 -C.sub.4 alkoxy, or also C.sub.7 -C.sub.13 aralkyl, or in which R.sup.2 and R.sup.3, together with the N atom to which they are linked, form a 5-membered, 6-membered or 7-membered heterocyclic ring, and R.sup.4 and R.sup.5 independently of one another are hydrogen or C.sub.1 -C.sub.

Abstract: A method of manufacturing a single-component PUR baking enamel comprising preparing a binder which is the reaction product of a partially blocked polyisocyanate (A) having a free NCO content>10 wt % and a total NCO content of 21-37 wt. % and a hydroxyl group-containing polyhydroxy compound having more than two hydroxy groups per molecule, and combining the reaction product with baking enamel additives in a solvent employable for baking enamels.

Abstract: A stable, nonaqueous polyurethane microparticle dispersion is characterized in that less than 20 percent of the polymer microparticles have a mean diameter greater than 5 microns, further characterized in that at a total solids content of 60 percent the Brookfield viscosity is less than 1000 centipoise measured at 50 RPM using a number 3 spindle at 25.degree. C., the polyurethane being prepared from reactants which are substantially free of acrylic polymer and the polyurethane being further characterized in that it is substantially free of unreacted polyisocyanate monomer.

Abstract: This invention presents new water-based adhesives suitable for use in thermoforming lamination systems. More particularly, this invention presents water-based adhesive-forming compositions comprising an aromatic polyurethane in water dispersion or emulsion and a compatible cross-linking agent; also includable in the compositions are thickening agents and pigments. These new adhesives, it has been found, exhibit bonding strengths and temperature resistance far superior to the solvent and water-based adhesives currently used in industrial applications, and are useful in thermoforming lamination processes. Also disclosed is a one-step thermoform lamination edge-folding process using the adhesive.

Abstract: An aliphatic, isocyanate-base, polyurethane polymer and a process for preparing the polymer. The process comprises reacting, such as by spraying onto a substrate or an open mold, a caprolactone polyol with an aliphatic isocyanate in the presence of a catalytic amount of a metallo catalyst, and also in the presence of a fast-curing amount of a curing agent comprising an amine, particularly a triethanol amine, to provide a fast-reaction aliphatic urethane polymer which is a clear, easily color-pigmented polymer.

Abstract: An aliphatic, isocyanate-base, polyurethane polymer and a process for preparing the polymer. The process comprises reacting, such as by spraying onto a substrate or an open mold, a caprolactone polyol with an aliphatic polyisocyanate in the presence of a catalytic amount of a metallo catalyst, and also in the presence of a fast-curing amount of a curing agent comprising an amine, particularly an aromatic diamine, such as diethyl toluene diamine, to provide a fast-reaction aliphatic polyurethane polymer.

Abstract: Compositions comprising elastomeric polyurethane prepolymers comprising the reaction product of at least one diisocyanate selected from the group consisting of p-phenylene diisocyanate, m-phenylene diisocyanate, 1,4-cyclohexyl diisocyanate, tetramethylxylyl diisocyanate and dimethylphenyl diisocyanate and at least one polyol or polythiol characterized by the presence of two hydroxyl or thiol groups or one hydroxy and one thiol group; a monomeric diol or dithiol curing agent and vein forcing fiber are especially useful for preparing fiber-reinforced composite structures, especially for dynamic applications.

Abstract: The present invention is directed to a process for the preparation of a diisocyanate by reacting a diisocyanate with 2,2,4-trimethyl-pentanediol-(1,3) or reaction products of this diol which contain either ether or ester groups and optionally other diols or triols. The present invention is additionally directed to the diisocyanates produced by this process and to their use in one-component and two-component coating compositions.

Abstract: A polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound is prepared by a process which comprises reacting a polyisocyanate, at least a portion of which is a diisocyanate, with a polyfunctional amine containing primary and/or secondary amino groups in the presence of:(a) a polyol, at least a portion of which is a polymeric polyol containing ethylenic unsaturation and having a carbon to oxygen ratio of at least 4/1;(b) a diluent which is an ethylenically unsaturated compound free of active hydrogens; and(c) an active hydrogen containing polymerizable ethylenically unsaturated compound; under conditions sufficient to form a polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound.The aforedescribed urea urethane polymer dispersions are particularly useful in formulating curable compositions suitable for use as adhesives and sealants.

Abstract: Liquid coating compositions adapted to be cured by exposure to ionizing radiation are disclosed in which a liquid vehicle of coating viscosity having an ethylenically unsaturated portion comprising one or more polyethylenically unsaturated materials adapted to cure on radiation exposure, pigment dispersed in the vehicle, and an acrylate-functional radiation-curable dispersant having free carboxyl group for wetting the pigment and assisting in the stable dispersion of the pigment in the vehicle. This dispersant is an acrylate-functional carboxylic acid amide carrying free carboxyl groups, especially an adduct of a polyacrylate and a stoichiometric deficiency of a primary amine to provide a secondary amine having acrylate functionality, the secondary amine functionality being reacted with a polycarboxylic acid anhydride to form amide groups therewith.

Abstract: A polyurethane resin composition which comprises (1) a polyurethane prepolymer in the form of liquid or solution, (2) colloidal silica and (3) a siloxane compound having a polyoxyethylene chain in the molecule maintains an excellent thixotropy even after solvents and additives are added and kneaded as the case may be.

Abstract: Removable water-borne urethane resin coating composition comprising polyurethane resin containing carboxyl groups and/or carboxylate groups and polyvalent metal complex as a cross-linking agent and method for removing the coating formed by using the removable water-borne urethane resin coating composition which comprises treating said coating with a ligand containing alkaline solution and removing the coating.The coating formed by using the composition is superior in water resistance, recoatability, detergent resistance, black heel mark resistance, abrasion resistance and service life.

Abstract: The present invention is directed to a process for the production of water- and solvent-resistant coated substrates by coating heat-resistant substrates with a solution or dispersion of an anionic group-containing polyisocyanate addition product in an aqueous solvent or dispersant and subsequently thermally treating the coating at a temperature of about 60.degree. to 200.degree. C., with evaporation or vaporization of the solvent or dispersant and simultaneous crosslinking of the polyisocyanate addition product which has been applied to the substrate, characterized in that incorporated anionic structural units corresponding to the formula ##STR1## are used in a quantity of about 5 to 1000 milliequivalents per 100 g of solids and the solids are based on reaction products of organic polyisocyanates with salts of cyanamide and bases selected from ammonia, primary and secondary amines having a minimum pKb value of 3.1, tertiary amines and mixtures thereof.

Abstract: A cyclic olefin extended polyurethane system comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a cyclic olefin extender and, optionally, a liquid ester or other type of extender. Said polyurethane systems are cured, crosslinked, non-spewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used for repairing, encapsulation or reclaiming electrical or telephone cables as well as hard volume encapsulants for general elastomer use. The extended polyurethane is comprised of a defined polyurethane, novel extender combinations, and optionally, a coupling agent.

Abstract: The use of isocyanate-functional prepolymers containing from recurring poly(ethylene oxide) units and colloidal silica in two-pack polyurethane compositions not only increases the flexibility of high build coatings prepared from such compositions but is also effective in controlling the mixed viscosity.

Abstract: Liquid coating compositions adapted to be cured by exposure to penetrating radiation are disclosed in which a liquid vehicle of coating viscosity having an ethylenically unsaturated portion comprising one or more polyethylenically unsaturated materials adapted to cure on radiation exposure, pigment dispersed in the vehicle, and an ethylenically unsaturated radiation-curable dispersant containing a carboxyl group for wetting the pigment and assisting in the stable dipsersion of the pigment in the vehicle. This dispersant is a half amide or half ester of an ethylenically unsaturated polycarboxylic acid anhydride, such as maleic anhydride, with an organic compound having a molecular weight of from 100 to 4000 and which contains a single hydroxy group or a single amino group as the sole reactive group thereof.

Abstract: Novel polyamide-imide resin compositions, useful for electrically insulating conductors, are prepared by polycondensing a tribasic acid anhydride compound and a diisocyanate in an inert organic solvent in the presence of a catalytic amount of an oxyanion or amine compound at a high solids content, and controlling the reaction to prevent a great increase in viscosity.

Abstract: A heat-resistant composition containing an organic or elemento-organic binder and a filler. As a binder the composition contains at least one compound of the formula: ##STR1## wherein R is an organic radical with a number of carbon atoms of from 2 to 1,000; a radical with a number of carbon atoms of from 2 to 1,000 containing 1 to 1,000 atoms of silicon and/or1 to 1,000 atoms of fluorine, and/or1 to 1,000 atoms of chlorine, and/or1 to 1,000 atoms of bromine, and/or1 to 1,000 atoms of nitrogen, and/or1 to 1,000 atoms of sulphur, and/or1 to 1,000 atoms of phosphorus, and/or1 to 1,000 atoms of boron, and/or1 to 1,000 atoms of oxygen,X and Y are each --NH.sub.2, --OH, --SH, --NCO, --NSO, --NCS, said X and Y may be the same or different; Z is --C.tbd.N, --C.tbd.CH and is located in the same or different positions selected from alpha-, beta-, ortho- and peri- positions relative to X and Y; n.gtoreq.1, m.gtoreq.1, p.gtoreq.

Abstract: Polyurethane moldings having an inhomogeneously colored surface with color contrasts in fiber-like distribution are made by incorporating colored fibers of a specified type in a polyurethane forming reactionmixture. The colored fibers must have a staple length of from 0.1 to 6 mm, a denier of from 0.1 to 25 dtex, and a coloring agent that does not migrate or dissolve in the polyurethane-forming materials. These fibers are generally used in a quantity such that they represent from 0.1 to 10 wt. % of the polyurethane-forming reaction mixture. Shoe soles, shoe heels, multiple layer soles and padded components are examples of moldings which may be produced in accordance with the present invention.

Abstract: A press roll comprises an inorganic powder and a polyurethane obtainable by reacting an organic isocyanate and an organic compound having a functional group which reacts therewith. This roll is preferably used as a top press roll for manufacturing paper.

Abstract: The invention is concerned with the preparation of polyurethane compositions in which the deleterious effect of gaseous by-products formed in the reaction is minimized. This is achieved by the use of coupling reagents which incorporate a steric hindrance function. The latter does not interfere with the normal coupling reactions between the coupling agent and polymer matrix and filler material but it does prevent such reaction between the coupling agent and filler material as would cause release of low molecular weight compounds occluded by the filler. Since the release of low molecular weight compounds is avoided, the formation or evolution of gases which give rise to unwanted cellularity of the cured composition is at least minimized.

Abstract: A radiation-hardenable binder comprising a reaction product ester containing hydroxyl groups and hydroxyalkyl acrylates, which comprises:(A) 1 NCO gram equivalent of a polyisocyanate containing from 2 to 3 isocyanate groups per molecule; (B) from 0.4 to 1.2 OH gram equivalents of an ethylenically-unsaturated partial ester having an OH number of from 80 to 150 of an alkoxylated trimethylol propane having a degree of alkoxylation of 3 to 4.5 and acrylic acid or methacrylic acid or a mixture thereof; and (C) from 0 to 0.6 OH gram equivalents of a hydroxy alkyl acrylate or hydroxy alkyl methacrylate or a mixture thereof containing from 2 to 6 carbon atoms in the alkyl group, wherein the sum total of the OH-gram equivalents of B and C is between 1 and 1.2.Aqueous dispersions containing the binder are used for impregnating, coating, reinforcing or priming textile materials, wood, plastics, non-wovens or leather.

Abstract: A flame retardant liquid rubber composition comprises a hydrogenated polyhydroxybutadiene polymer and castor oil, which are modified with an isocyanate having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 respectively represent a lower alkyl group or hydrogen atom and n is an integer of 1 to 4, and alumina hydrate and magnesium hydroxide. The castor oil can be incorporated before adding said isocyanate or can be converted into an isocyanate prepolymer by reacting with said isocyanate before the addition.

Abstract: Disclosed is a coating composition rapidly curable at room temperature in the presence of a vaporous tertiary amine catalyst which comprises catechol or a catechol derivative, a multi-isocyanate curing agent, and preferably a fugitive organic solvent.

Abstract: A photopolymerizable polyurethane composition comprising (1) a polyurethane based on an aliphatic diisocyanate, poly(hexamethylene isophthalate glycol) and, optionally, 1,4-butanediol; (2) a polyfunctional acrylic ester; (3) a photoinitiator; and (4) an anti-oxidant, can be formulated so that it provides a hard, abrasion-resistant, and stain-resistant finish for floor tiles or so that it can be used as a scratch-resistant and stain-resistant outer coating for bilayer automotive safety glass assemblies.

Abstract: Rheology modifiers useful in water-based and organic solvent-based compositions are derived from the reaction of polyalkylene oxide, polyfunctional material, diisocyanate and little or no water. The modifiers are characterized by having a branched structure and containing substantially no terminal hydrophobic groups.

Abstract: Novel polymer/polyisocyanate compositions made by polymerizing at least one ethylenically unsaturated monomer in situ in a blend of a first organic polyisocyanate and a stabilizer. The stabilizer comprises a polyoxyalkylene polyol having a number average molecular weight of at least 4000; an isocyanato terminated prepolymer formed by reacting the polyoxyalkylene polyol and a second organic polyisocyanate with the proviso that the isocyanato terminated prepolymer and the first organic polyisocyanate provide greater than 25 equivalents of isocyanato groups per equivalent of hydroxyl groups; a polymer/polyol formed using the polyoxyalkylene polyol; a polymer/prepolymer formed using the polyoxyalkylene polyol with the proviso indicated for the prepolymer above; or a modified polyol containing an ester group formed using the polyoxyalkylene polyol.

Abstract: Polyurethane formulations that are resistant to fouling by marine organisms when exposed to sea water are prepared by mixing tetrachloroisophthalonitrile with a polyurethane. Any of the known polyurethanes may be used and liquid castable compositions are particularly useful.