Abstract: The disclosed composite wood particulate products, adhesives contained in such wood particulate products, and methods of making the adhesive and the wood particulate products employ an aldehyde-free adhesive, and more specifically a formaldehyde-free adhesive. The aldehyde-free adhesive includes an inert additive that extends a resin, such as an isocyanate resin, and forms an evenly dispersed, less expensive polymeric adhesive admixture. The extender-filler of the resin is mixed with water to form a slurry. The slurry can then be mixed with a resin, like the isocyanate resin, to form the adhesive. Various rheology modifiers can be added, if desired, to the extender-filler or the slurry. The adhesive can be blended with wood particles to form a mat that is then pressed into a composite wood particulate product.

Abstract: The disclosed composite wood particulate products, adhesives contained in such wood particulate products, and methods of making the adhesive and the wood particulate products employ an aldehyde-free adhesive, and more specifically a formaldehyde-free adhesive. The aldehyde-free adhesive includes an inert additive that extends a resin, such as an isocyanate resin, and forms an evenly dispersed, less expensive polymeric adhesive admixture. The extender-filler of the resin is mixed with water to form a slurry. The slurry can then be mixed with a resin, like the isocyanate resin, to form the adhesive. Various rheology modifiers can be added, if desired, to the extender-filler or the slurry. The adhesive can be blended with wood particles to form a mat that is then pressed into a composite wood particulate product.

Abstract: The disclosed composite wood particulate products, adhesives contained in such wood particulate products, and methods of making the adhesive and the wood particulate products employ an aldehyde-free adhesive, and more specifically a formaldehyde-free adhesive. The aldehyde-free adhesive includes an inert additive that extends a resin, such as an isocyanate resin, and forms an evenly dispersed, less expensive polymeric adhesive admixture. The extender-filler of the resin is mixed with water to form a slurry. The slurry can then be mixed with a resin, like the isocyanate resin, to form the adhesive. Various rheology modifiers can be added, if desired, to the extender-filler or the slurry. The adhesive can be blended with wood particles to form a mat that is then pressed into a composite wood particulate product.

Abstract: The disclosed composite wood particulate products, adhesives contained in such wood particulate products, and methods of making the adhesive and the wood particulate products employ an aldehyde-free adhesive, and more specifically a formaldehyde-free adhesive. The aldehyde-free adhesive includes an inert additive that extends a resin, such as an isocyanate resin, and forms an evenly dispersed, less expensive polymeric adhesive admixture. The extender-filler of the resin is mixed with water to form a slurry. The slurry can then be mixed with a resin, like the isocyanate resin, to form the adhesive. Various rheology modifiers can be added, if desired, to the extender-filler or the slurry. The adhesive can be blended with wood particles to form a mat that is then pressed into a composite wood particulate product.

Abstract: A method for restoring a damaged rail seat located on a concrete rail tie. The method comprises applying a polymeric material comprising a poly(urethane-urea) material to the damaged rail seat located on the concrete rail tie; and restoring the damaged rail seat by curing the polymeric material under ambient temperature and pressure conditions. The polymeric material is substantially sag resistant and maintains its shape without substantial runoff from the concrete rail tie during the restoring of the damage rail seat.

Abstract: A method for restoring a damaged rail seat located on a concrete rail tie. The method comprises applying a polymeric material comprising a poly(urethaneurea) material to the damaged rail seat located in the concrete rail tie; and restoring the damaged rail seat by cursing the polymeric material under ambient temperature and pressure conditions. The polymeric material is substantially sag resistant and maintains its shape without substantial runoff from the concrete rail tie during the restoring of the damage rail seat.

Abstract: Low unsaturation, high molecular weight polyols having an unsaturation level below or equal to 0.006 milli-equivalents per gram, and preferably below 0.004 milli-equivalents per gram, and molecular weights of greater than or equal to about 2,000, and preferably between about 2,000 and 10,000, are converted into low unsaturation, high molecular-weight (LUSHMW) polyamines directly by amination reactions. The LUSHMW polyamines produce polymers having elongation, modulus, and tensile characteristics that are substantially better than those of conventional analogous polymers.

Abstract: A process for preparing a polymeric composition comprising reacting a mixture of at least one phenolic compound and at least one oxazoline compound in the presence of a catalytic amount of at least one ammonium salt and a tetracarbyl phosphonium salt, and optionally also in the presence of an alkyl halide is described.

Abstract: An improved process for increasing the rate of the copolymerization of mixtures of polyphenolic compounds having more than two phenolic hydroxyl groups per molecule and bis-oxazolines comprising carrying out the copolymerization in the presence of a catalytic amount of a halohydrocarbon at a temperature in the range of from about 130.degree. C. to 150.degree. C. is described.

Abstract: Compositions have melting points below 100.degree. C. which are useful in the formation of resins by reaction with polyphenolic compounds consisting of a mixture of more than two compounds having the formula ##STR1## wherein A represents a cyclic or acyclic aliphatic or substituted cyclic or acyclic aliphatic moiety having from 1 to 20 carbon atoms or an aromatic mono- or multi-nuclear or aliphatic substituted aryl residue having from 6 to 20 carbon atoms,R independently represents H, CH.sub.3, CH.sub.2 CH.sub.3 or C.sub.6 H.sub.5,R.sup.1 independently represents H or CH.sub.3,R.sup.2 independently represents H or CH.sub.3, andx represents an integer from 0 to 2are described.

Abstract: A polymerizable thermosetting composition which is a flowable liquid at moderate temperatures which comprises a mixture of:(A) from about 75% to about 95% by weight of a mixture of:(1) from about 80% to about 20% by weight of a bisoxazoline and(2) from about 20% to about 80% by weight of a polyphenolic compound and(B) from about 5% to about 25% by weight of at least one member selected from the group consisting of a monooxazoline and a monooxazine,a method for forming thermoset products therefrom and the novel thermoset products resulting from said method are described.

Abstract: The formation of structural composites having low smoke release and low heat release properties by forming a sandwich comprising a non-woven fiber mat between woven glass fiber mats and impregnating said sandwich with a mixture of a bisoxazoline and a polyphenolic compound to form a prepreg which can be formed and molded at elevated temperatures is described.

Abstract: Compositions having melting points below 100.degree. C. which are useful in the formation of resins by reaction with polyphenolic compounds consisting of a mixture of more than two compounds having the formula ##STR1## wherein A represents a cyclic or acyclic aliphatic or substituted cyclic or acyclic aliphatic moiety having from 1 to 20 carbon atoms or an aromatic mono- or multi-nuclear or aliphatic substituted aryl residue having from 6 to 20 carbon atoms,R independently represents H, CH.sub.3, CH.sub.2 CH.sub.3 or C.sub.6 H.sub.5,R.sup.1 independently represents H or CH.sub.3,R.sup.2 independently represents H or CH.sub.3, andx represents an integer from 0 to 2as described.

Abstract: A process for the copolymerization of bis-2-oxazolines and polyphenolic compounds at greatly improved rates comprising carrying out the copolymerization in the presence of from about 0.5 to about 5% by weight of a phosphine catalyst is described.

Abstract: A process for preparing copolymers of a mixture of a bis-oxazoline and a polyphenolic compound at improved rate of copolymerization by the inclusion of a catalytic amount of a carbonium ion salt of the formula Ph.sub.3 CX wherein Ph represents a phenyl group and X represents BF.sub.4, PF.sub.6, SbF.sub.6, AsF.sub.6, BPh.sub.4 or ClO.sub.4, is described.

Abstract: The process for preparing a polymeric composition at improved rate comprising reacting an oxazoline compound and a phenolic compound in the presence of a catalytic amount of a phosphorous acid ester is described.