Abstract: Aqueous polyurethane dispersion are disclosed where the dispersions contain from 5 to 70 weight percent polyurethane solids wherein the solids are obtained from at least one isocyanate terminated prepolymer prepared by reacting (a) a polyol or polyol blend having a mean average equivalent weight of 200 to 2,000; and (b) at least one polyisocyanate where the prepolymer is dispersed in water; optionally in the presence of (c) one or more stabilizers; or (d) one or more amine chain extenders or both; wherein the prepolymers have an isocyanate (NCO) content of from 2 to 40 weight percent and the polyol or polyol blend (a) contains at least 15 weight percent of a polyester based on a polycarboxylic acid or lactone component and a glycol component, wherein the glycol component contains isomers of 1,3- and 1,4-cyclohexanedimethanol (1,3-/1,4-CHDM) where the ratio of the 1,3-/1,4-isomers is from 35:65 to 65:35.

Abstract: The instant invention is an aqueous non-ionic hydrophilic polyurethane dispersion, and a continuous process for making the same. The aqueous non-ionic hydrophilic polyurethane dispersion according to instant invention includes the reaction product of a non-ionic hydrophilic prepolymer, water, optionally an external surfactant, and optionally a chain-extending reagent. The non-ionic hydrophilic prepolymer includes the reaction product of a first component and a second component. The first component is selected from the group consisting of an aromatic polyisocyanate, an aliphatic polyisocyanate, and combinations thereof. The second component is a hydrophilic alkylene oxide polyol, a non-ionic hydrophilic alkylene oxide monol, or combinations thereof.

Abstract: The instant invention is a sealant composition comprising an ultra-high solid polyurethane dispersion comprising. The ultra-high solid polyurethane dispersion comprises (1) a first component comprising a first polyurethane prepolymer or a first polyurethane prepolymer emulsion, (2) a second component comprising a media phase selected from the group consisting of a second polyurethane prepolymer emulsion, a low solid content polyurethane dispersion, a seed latex, and combinations thereof; and (3) a chain extender. The ultra-high solid polyurethane dispersion has at least a solid content of at least 65 percent by weight of solid content, based on the total weight of the ultra-high solid polyurethane dispersion, and a viscosity of less than 5000 cps at 20 rpm at 21° C. using spindle #4 with Brookfield viscometer.

Abstract: The present invention is to emulsifiable polyisocyanate compositions comprising the reaction product of (i) an aliphatic polyisocyanate and (ii) an emulsifier wherein the polyisocyanate comprises a mixture of two or more isomers of cis-1,3-bis(isocyanatomethyl)cyclohexane, trans-1,3-bis(isocyanatomethyl)cyclohexane, cis-1,4-bis(isocyanatomethyl)cyclohexane or trans-1,4-bis(isocyanatomethyl)cyclohexane, with the proviso said isomeric mixture comprises at least about 5 weight percent of said trans-1,4-bis(isocyanatomethyl)cyclohexane. The emulsifiable polyisocyanates are particularly in formulations for producing paints and varnishes, coatings, adhesives, impregnating materials and sealants.

Abstract: Polymer dispersions are prepared by reaction of a polyisocyanate and a hydroxylmethyl containing polyester polyol derived from a fatty acid to form a prepolymer, dispersing the prepolymer in an aqueous phase and then curing the prepolymer to form solid particle particles. The prepolymers can be prepared having isocyanate, hydroxyl, or a variety of other reactive functional groups. The dispersions are useful in a variety of coating, sealant, adhesive and elastomer applications.

Abstract: Prepolymers are prepared by a reaction of a polyisocyanate and a hydroxylmethyl containing polyester polyol derived from a fatty acid. The prepolymers can be prepared having isocyanate, hydroxyl, or a variety of other reactive functional groups. The prepolymers are useful in making polyurethanes and other polymers, or a crosslinking agents.

Abstract: The present invention is to thermally dissociative blocked polyisocyanate composition containing isocyanurate moieties wherein the isocyanurate is the reactions product of bis(isocyanotomethyl)cyclohexane wherein the 5 bis(isocyanotomethyl)cyclohexane is a mixture comprising two or more of cis-1,3-bis(isocyanotomethyl)cyclohexane, trans-1,3-bis(isocyanotomethyl)cyclohexane, cis-1,4bis(isocyanotomethyl)cyclohexane and trans-1,4-bis(isocyanotomethyl)cyclohexane with the proviso the composition comprises at least 5 weight percent of the 1,4-isomer. When blended with a polyhydroxyl compound, such blocked isocyanurate poyisocyantes are 10 particularly useful in powder and solvent-based coatings.

Abstract: A synthetic leather is made by a impregnating a non-woven or woven textile with an aqueous polyurethane dispersion comprised of a nonionizable polyurethane and an external stabilizing surfactant. The impregnated textile is then exposed to water containing a coagulant for a coagulation time sufficient to coagulate the dispersion. The method may be used to form a synthetic leather having excellent wet ply adhesion and may contain an insoluble multivalent cation organic acid.

Abstract: The present invention is to a polyurethane dispersion and products produced therefrom wherein the dispersion contains a polyurethane prepolymer produced from the a reaction of an excess of a polyisocyante with an isocyanate reactive molecule wherein the polyisocyante is a bis(isocyanatomethyl)cyclohexane. Preferably the isocyanate comprises (i) trans-1,4-bis(isocyanatomethyl)cyclohexane or (ii) an isomeric mixture of two or more of cis-1,3-bis(isocyanatomethyl)cyclohexane, trans-1,3-bis(isocyanatomethyl)cyclohexane, cis-1,4-bis(isocyanatomethyl)cyclohexane and trans-1,4-bis(isocyanatomethyl)cyclohexane, with the proviso said isomeric mixture comprises at least about 5 weight percent of said trans-1,4-bis(isocyanatomethyl)cyclohexane.

Abstract: The invention relates to polyurethane dispersions which develop high hardness and form coating films at room temperature. The dispersions are prepared from prepolymers containing prepolymers containing a polyol or polyol blend having specified equivalent weight and polyisocyanate to polyol molar ratio.

Abstract: The present invention is to a polyurethane dispersion and products produced therefrom wherein the dispersion contains a polyurethane prepolymer produced from the a reaction of an excess of a polyisocyanate with an isocyanate reactive molecule wherein the polyisocyanate is a bis(isocyanatomethyl)cyclohexane. Preferably the isocyanate comprises (i) trans-1,4-bis(isocyanatomethyl)cyclohexane or (ii) an isomeric mixture of two or more of cis-1,3-bis(isocyanatomethyl)cyclohexane, trans-1,3-bis(isocyanatomethyl)cyclohexane, cis-1,4-bis(isocyanatomethyl)cyclohexane and trans-1,4-bis(isocyanatomethyl)cyclohexane, with the proviso said isomeric mixture comprises at least about 5 weight percent of said trans-1,4-bis(isocyanatomethyl)cyclohexane.

Abstract: Isocyanurate polyisocyanates compositions derived from bis(isocyanotomethyl)cyclohexane are disclosed. The compositions are prepared by cyclizing (i) 1,3-bis(isocyanotomethyl)cyclohexane or 1,4-bis(isocyanotomethyl)cyclohexane or (ii) an isomeric mixture of two or more of cis-1,3-bis(isocyanotomethyl)cyclohexane, trans-1,3-bis(isocyanotomethyl)cyclohexane, cis-1,4-bis(isocyanotomethyl)cyclohexane and trans-1,4-bis(isocyanotomethyl)cyclohexane in the presence of a trimerization catalysts, and then deactivating these catalysts. The isocyanurate polyisocyanates can be further modified to contain urethane, urea, biuret, allophanate, imino-s-triazine, uretonimine or carbodiimide moieties.

Abstract: A stable thermally coaguable polyurethane, which can form moisture resistant polyurethane articles is comprised of water having therein an external surfactant, an electrolyte and polyurethane particles, wherein the polyurethane particles are comprised of a nonionizable polyurethane that has ethylene oxide units in an amount that is insufficient to render a stable aqueous polyurethane dispersion in the absence of the external surfactant. A portion of the ethylene oxide units are of a mono hydroxyl polyethylene oxide having a molecular weight of 400 to 1500, polyethylene oxide diol having a molecular weight of 800 to 3000 or combination thereof.

Abstract: The present invention is to a polyurethane dispersion and products produced therefrom wherein the dispersion contains a polyurethane prepolymer produced from the a reaction of an excess of a polyisocyane with an isocyanate reactive molecule wherein the polyisocyante is a bis(isocyanatomethyl)cyclohexane. Preferably the isocyanate comprises (i) trans-1,4-bis(isocyanatomethyl)cyclohexane or (ii) an isomeric mixture of two or more of cis-1,3-bis(isocyanatomethyl)cyclohexane, trans-1,3-bis(isocyanatomethyl)cyclohexane, trans-1,3-bis(isocyanatomethyl)cyclohexane, cis-1,4-bis(isocyanatomethyl)cyclohexane and trans-1,4-bis(isocyanatomethyl)cyclohexane, with the proviso said isomeric mixture comprises at least about 5 weight percent of said trans-1,4-bis(isocyanatomethyl)cyclohexane.

Abstract: A polyurethane having enhanced properties is made from an aqueous polyurethane dispersion having therein a nonvolatile, non-reactive, property enhancing water-soluble (NNPEW) compound such as urea. Even though the NNPEW is soluble in water, the NNPEW remains in the polyurethane after being exposed to water. In another embodiment, the NNPEW may react with a compound present in the dispersion other than the polyurethane particles of the dispersion when removing the water of the dispersion to form the polyurethane or upon subsequent heating.

Abstract: Dispersions of hybrid polyurethane particles are made using miniemulsion techniques. An isocyanate-terminated prepolymer and a monomer are mixed and dispersed in an aqueous phase to form a dispersion of droplets. All droplets are polymerized and chain-extended in one step to form hybrid particles containing a polyurethane and a polymer of the monomer. This process provides a simple method of making hybrid particles, in which particle size and the number of particles is controlled in the mixing step. The hybrid particles often have a core-shell morphology, with the polyurethane being concentrated in the shell and the polymer being concentrated in the center of the particle.

Abstract: The present invention discloses a process for producing a polyurethane product with autocatalytic polyols with gelling characteristics. These auto-catalytic polyols are reacted with a polyisocyanate in the presence of other additives and/or auxiliary agents known per se to produce polyurethane products.

Abstract: A synthetic leather is made by a impregnating a non-woven or woven textile with an aqueous polyurethane dispersion comprised of a nonionizable polyurethane and an external stabilizing surfactant. The impregnated textile is then exposed to water containing a coagulant for a coagulation time sufficient to coagulate the dispersion. The method may be used to form a synthetic leather having excellent wet ply adhesion and may contain an insoluble multivalent cation organic acid.

Abstract: A polyurethane dispersion containing the reaction product of a polyurethane prepolymer and water are shear, shelf, temperature, pH and electrolyte stable. The amount of the reaction product in the dispersion may be as high as 60 weight percent. The prepolymer may be the reaction product of a polyisocyanate and a hydrophilic alkylene oxide polyol or polyamine having a molecular weight of between 800 and 1,500 and an active-hydrogen containing material, such as a polyol, and optionally, a surfactant. The hydrophilic alkylene oxide polyol or polyamine is present in an amount sufficient to reduce the interfacial tension of the prepolymer to less than or equal to 10 dynes/cm. The amount of ethylene oxide in the prepolymer is between from about 0.5 to about 5.5 weight percent. The water solubility of the high molecular weight active-hydrogen containing material is typically less than about 10.0 g per 100 g of water.

Abstract: This invention relates to polyurethane compounds, e.g., elastomers, which are the reaction product of a cycloaliphatic diisocyanate, a polyol and a chain extender. The cycloaliphatic diisocyanate comprises (i) trans-1,4-bis(isocyanatomethyl)cyclohexane or (ii) an isomeric mixture of two or more of cis-1,3-bis(isocyanatomethyl)cyclohexane, trans-1,3-bis(isocyanatomethyl)cyclohexane, cis-1,4-bis(isocyanatomethyl)cyclohexane and trans-1,4-bis(isocyanatomethyl)cyclohexane, provided the isomeric mixture comprises at least about 5 weight percent of said trans-1,4-bis(isocyanatomethyl)cyclohexane. This invention also relates to shaped and molded articles prepared from said polyurethane compounds.