Abstract: Fire retardant coating systems and solid body cast systems comprise a first part comprising at least one ingredient having NCO functionality; and a second part comprising at least one ingredient having an active hydrogen functionality that is co-reactive with the NCO, wherein the first part and the second part are formulated so that when the parts are mixed together they form a cured coating or a solid body. The coating system or solid body cast system comprises a first fire retardant ingredient that is a phosphorus-based compound, a second fire retardant ingredient that is an intumescent material, and a third fire retardant ingredient that is a brominated ingredient. Methods for preparing a fire retardant coating or solid body are also described.

Abstract: A method is provided for applying a fire retardant coating system. The method comprises providing a first component that is a coatable polymeric coating composition and a second component comprising granules, wherein the granules comprise a polymeric matrix comprising a plurality of regions of fire retardant material ingredient incorporated therein. The first component and the second component are separate as delivered to the site of application. The first component and the second component are applied onto a substrate so that the granules are adhered to the substrate by the polymeric coating composition. The polymeric coating composition is then allowed to cure to form a fire-retardant coating. The resulting fire-retardant coating affords surprising fire retardancy performance.

Abstract: Fire retardant coating systems and solid body cast systems comprise a first part comprising at least one ingredient having NCO functionality; and a second part comprising at least one ingredient having an active hydrogen functionality that is co-reactive with the NCO, wherein the first part and the second part are formulated so that when the parts are mixed together they form a cured coating or a solid body. The coating system or solid body cast system comprises a first fire retardant ingredient that is a phosphorus-based compound, a second fire retardant ingredient that is an intumescent material, and a third fire retardant ingredient that is a brominated ingredient. Methods for preparing a fire retardant coating or solid body are also described.

Abstract: Fire retardant foam systems comprise a first part comprising at least one ingredient having NCO functionality; and a second part comprising at least one ingredient having an active hydrogen functionality that is co-reactive with the NCO, wherein the first part and the second part are formulated so that when the parts are mixed together they form a cured foam. The foam system comprises a first fire retardant ingredient that is a phosphorus-based compound, a second fire retardant ingredient that is an intumescent material, and a third fire retardant ingredient that is a brominated ingredient additionally having an active hydrogen functionality that is co-reactive with the NCO of the first part. Methods preparing a fire retardant foam comprise providing a fire retardant foam system as described above and mixing the first part and the second part together so that they form a cured foam. The foam made by this process and methods of protecting structures using the present foam system are also provided.

Abstract: A fire retardant body comprises a polymeric matrix and a non-halogenated fire retardant component that is an intumescent material. The fire retardant component is present in the fire retardant body in an amount from about 55% to about 95% of the body by weight. The body preferably has a thickness of at least about 3 mm in each dimension. Methods of using the fire retardant body for protecting a substrate from fire damage are also provided.

Abstract: Compositions incorporating water-curable urethane constituent(s) are formulated with favorable viscosity and viscosity stability characteristics, while at the same time, preserving desired hardness characteristics. The present invention is particularly useful in applications in which water-curable compositions include NCO-functional resins having relatively high NCO content and/or incorporate MDI-based constituents. Preferred modes of practicing the invention include implementing one or more formulation strategies to help retain hardness while preserving good viscosity characteristics. These preferred strategies involve (i) balancing scavenger, polyisocyanate and polyfunctional polyol content of the compositions or resins thereof, as the case may be, (ii) formulating an NCO-functional resin with chain extender constituent(s) to enhance viscosity stability, (iii) formulating with one or more plasticizers that enhance viscosity performance, and (iv) combinations of two or more of these strategies.

Abstract: A polyurea coating layer is provided, which is the reaction product of an isocyanate composition and an amine composition. The isocyanate composition comprises isocyanate functional compounds selected from a first set of isocyanate compounds having an average isocyanate functionality of at least about 3 and having an equivalent weight of from about 180 to about 240. The first set of isocyanate compounds preferably are at least about 65% of the isocyanate compounds. The isocyanate composition has an average isocyanate functionality of at least about 2.5. The amine composition comprises amine functional compounds selected from a first set of secondary amine compounds having an equivalent weight of from about 200 to about 280 (preferably as about 50 to about 80% of the amine compounds), and a second set of secondary amine compounds having an equivalent weight of from about 30 to about 180 (preferably as about 20 to about 40% of the amine compounds).

Abstract: Increased health, safety, and environmental awareness motivated the development of new and improved water curing technology for formulating, manufacturing, and using water curable compositions (also referred to in the art as water induced urethanes). The present invention is based, at least in part, upon the concept of formulating NCO functional resins used in water curable compositions from one or more polyisocyanate constituents that comprise at least one sterically hindered isomer of diphenyl methane diisocyanate (MDI). These isomers have a combination of exceptionally low vapor pressure and suitable moisture reactivity that lead to numerous advantages. Due to their low volatility, these isomers may be substituted for all or a portion of the TDI content of a conventional water induced urethane formulation. Particularly preferred embodiments eliminate any TDI, have 100% solids, are solvent free, and are characterized by essentially zero VOC emissions with respect to isocyanate.

Abstract: Increased health, safety, and environmental awareness motivated the development of new and improved water curing technology for formulating, manufacturing, and using water curable compositions (also referred to in the art as water induced urethanes). The present invention is based, at least in part, upon the concept of formulating NCO functional resins used in water curable compositions from one or more polyisocyanate constituents that comprise at least one sterically hindered isomer of diphenyl methane diisocyanate (MDI). These isomers have a combination of exceptionally low vapor pressure and suitable moisture reactivity that lead to numerous advantages. Due to their low volatility, these isomers may be substituted for all or a portion of the TDI content of a conventional water induced urethane formulation. Particularly preferred embodiments eliminate any TDI, have 100% solids, are solvent free, and are characterized by essentially zero VOC emissions with respect to isocyanate.

Abstract: A polyurea coating layer is provided, which is the reaction product of an isocyanate composition and an amine composition. The isocyanate composition comprises isocyanate functional compounds selected from a first set of isocyanate compounds having an average isocyanate functionality of at least about 3 and having an equivalent weight of from about 180 to about 240. The first set of isocyanate compounds preferably are at least about 65% of the isocyanate compounds. The isocyanate composition has an average isocyanate functionality of at least about 2.5. The amine composition comprises amine functional compounds selected from a first set of secondary amine compounds having an equivalent weight of from about 200 to about 280 (preferably as about 50 to about 80% of the amine compounds), and a second set of secondary amine compounds having an equivalent weight of from about 30 to about 180 (preferably as about 20 to about 40% of the amine compounds).

Abstract: A polyurea sealant top-coat composition for application onto a substrate, including a polyester product. Two general two-component compositions are included, with the first component of the first composition including isophorone diisocyanate monomer; propylene glycol; siloxane leveling additive; diisononyl phthalate; dibutyltin dilaurate; and tris(6-isocyanatohexyl) isocyanurate. The second component of the first composition includes low-viscosity amine functional resin; isophorone diamine; long chain alcohol polar acidic ester; titanium dioxide; ground silica; aliphatic diamine chain extender; alumina silicate; silicon dioxide; silicon antifoam; anti-cratering silicon surface additive; acrylate leveling additive; hydroxyphenyl-benzotriazole ultraviolet absorber; sebacate light stabilizer; silane adhesion promoter; bismuth deconoate catalyst; ethylenediamine/propylene glycol catalyst; and dibutyltin dilaurate.

Abstract: An economical composition capable of maintaining satisfactory Durometer hardness is formed by reacting a polyol, a polyisocyanate, and an aromatic polyamine in the presence of an extender oil. The polyisocyanate can be present in a first container of a kit and the aromatic polyamine can be present in a second container of the kit. The resulting composition can be employed in a flat-free pneumatic tire as well as for filling cracks in the surface of a structure.

Abstract: Heat stabilization of polyurethane elastomer catalyzed with organo-metallic catalyst is accomplished by adding a minor amount of elemental sulfur or sulfur-donor material to the liquid mixture of polyol and organic polyisocyanate at the time the catalyst is added. The sulfur remains inert during the polymerization reaction, and as long as the temperature of the cured elastomer does not exceed about 200.degree. F. When the temperature of the urethane exceeds 200.degree. F, the sulfur reacts with the catalyst to form a metallic sulfide, which results in the complete neutralization, or deactivation of the catalyst. Elimination of the organo-metallic catalyst prevents depolymerization of the urethane, and the urethane therefore remains solid at high temperatures for much longer periods of time than has heretofore been possible. The amount of sulfur required to deactivate will depend upon the metal content of the organo-metallic catalyst.