Abstract: The present invention teaches a new process to produce novel, hard, optically clear, impact-resistant polyurethane polymers that are characterized by excellent thermo mechanical properties and chemical resistance, and the polymers made as a result of such a process. The polyurethanes are made by reacting a) a prepolymer made by reacting a polyisocyanate with a primary amine-terminated polyether with an amine functionality of about 2 and a molecular weight of >1000, and in which the free —NCO content of the resulting prepolymer is >18% by weight; with b) (i) a polyol having an average hydroxyl functionality greater than 2 and an average hydroxyl equivalent weight of from about 400 to about 1,000, and (ii) a curing agent that has isocyanate reactive groups, a functionality of 2 to 3 and a molecular weight of <400.

Abstract: An improvement in a process wherein an organotin compound is used as a catalyst is disclosed, wherein the improvement comprises:

Abstract: A process for the synthesis of polyurethanes is disclosed wherein the process comprises reacting polyurethane-forming reactants in the presence of an effective amount of a catalyst comprising at least one alkylamino oxainide of the structure: wherein: R1 and R2 are independently selected alkyl groups or can be taken together to form a five or six-membered heterocyclic ring; R3 and R4 are independently selected from the group consisting of hydrogen and alkyl; n is 2 or 3; x is 0 or 1; Y is selected from the group consisting of O and NR9,  wherein: R9 is selected from the group consisting of hydrogen and alkyl; and X is selected from the group consisting of OR10 and G,  wherein: R10 is selected from the group consisting of hydrogen and alkyl; and G is

Abstract: A frothing aid for preparing coatings, adhesives, and sealants as well as for preparing a polyurethane-backed carpet is provided. The frothing aid comprises a blend of a nonionic siloxane alkoxylate and an organic cosurfactant. In particular, an aqueous polyurethane dispersion comprising a polyurethane dispersion composition and the frothing aid is provided. Moreover, a method for applying the aqueous polyurethane dispersion to a substrate is provided.

Abstract: The present invention provides amine/amide catalysts for use in catalyzing the formation of polyurethane. The amine/amide catalysts, which have low fugitivity due to their reactivity with isocyanates, and good catalytic activity, have the structure ##STR1## wherein Q is C.sub.z H.sub.2z+1, or (CH.sub.2).sub.n N(R.sup.3).sub.k T, T is a monovalent C.sub.1 -C.sub.4 alkyl, amino-C.sub.1 -C.sub.4 -alkyl, mono-C.sub.1 -C.sub.4 -alkylamino-C.sub.1 -C.sub.4 -alkyl, or di-C.sub.1 -C.sub.4 -alkylamino-C.sub.1 -C.sub.4 -alkyl group, or T is a divalent alkyl, amine substituted alkyl, alkylaminoalkyl, or alkoxyalkyl group which forms with the nitrogen atom shown in structure (I) to which T is attached a cyclic structure which incorporates up to 6 carbon atoms in the ring as well as the nitrogen atom shown in structure (I), which cyclic structure may be substituted with C.sub.1 to C.sub.4 alkyl;k=0 or 1, being 1 if T is a monovalent group and 0 if T is a divalent group; R.sup.2 .dbd.H or C.sub.z H.sub.2z+1 ; R.sup.3 .dbd.

Abstract: It has now been found that the use of inert gases as an auxiliary blowing agent in flexible polyurethane foams places unexpected requirements on the composition of the silicone surfactants used in such foams. Typical silicone polyalkylene oxide polyether copolymer comb-type surfactants containing greater than about 37% ethylene oxide in the pendant polyether chains cause large cells when added inert gas is used as the blowing agent.

Abstract: A process for preparing a polyurethane foam according to the one-shot foaming process by reactions between a polyisocyanate and an active hydrogen-containing component including water and an organic polyol wherein said reactions are conducted in the presence of a salt of a tertiary amine and a carboxylic acid having hydroxyl functionality.

Abstract: Diamino ureas having the formula ##STR1## wherein each ring is saturated and includes 3-5 carbon atoms and n alkyl substituents R of 1-4 carbon atoms each and n for each ring is 1-4, a method of using these materials as chain extending agents in the manufacture of poly(urethane/urea)s or polyureas, and polymers having at least one constituent unit derived from such diamino ureas are claimed.

Abstract: A process for texturing a coating via exposing a photocurable composition comprising a multifunctional urea compound, an ethylenically unsaturated compound, and an aromatic ketone photosensitizer that functions through a hydrogen abstraction mechanism when exposed to ultraviolet light.

Abstract: The present invention provides a novel process for manufacturing N-(polyoxyalkyl)-N-(alkyl) amines. The process is characterized by reacting a polyetheramine in which the amine groups are predominantly primary in character with a low molecular weight, sterically hindered alcohol in the presence of an appropriate catalyst, such as nickel using specific reaction conditions.

Abstract: A stable polymer polyol made by the in situ polymerization of two or more monomers in a polyol blend wherein at least one monomer is a bifunctional compound containing both an isocyanate group and an ethylinically unsaturated group and wherein the polyol blend contains a base polyol and an amine terminated polyether which is more reactive with the bifunctional compound than is the base polyol.

Abstract: A stabilizer made by reacting a N-(polyoxyalkyl)-N-(alkyl)amine and a bifunctional unsaturated monomer and its use in the preparation of polymer polyols.

Abstract: Polyurea foams are prepared by the reaction of N-(polyoxyalkyl)-N-(alkyl)amines with organic isocyanates in the presence of a suitable catalyst.

Abstract: N-(polyoxyalkyl)-N-(alkyl)amines are provided that are reactive with isocyanates to form polyurea and/or polyurethane urea polymers.

Abstract: N-(polyoxyalkyl)-N-(alkyl)amines are reacted with isocyanates and chain extenders to form polyureas and/or polyurethane-urea elastomers.

Abstract: A high modulus polyurethane elastomer having improved combustion resistance and satisfactory physical properties comprising the reaction product of a polyol or polymer polyol, a low molecular weight chain extender, a liquid organic polymeric isocyanate having an average functionality of at least about 2.4 and a defined concentration of flame retardant.

Abstract: A new class of polymer/polyols based on the condensation polymerization of an oxalate ester and a diamine directly in a polyether polyol. The resultant polyoxamate/polyols have viscosities ranging from 1,500 to 15,000 cps. These polyoxamate/polyols are useful in the preparation of urethane elastomers and high resilience foams.

Abstract: The invention provides polyurethane elastomers having satisfactory modulus characteristics which are prepared from a polyol-chain extender mixture consisting of (1) a poly (oxypropylene-oxyethylene) polyol having a hydroxyl number of from about 20 to 60, an oxyethylene cap of from about 10 to 30 weight percent and an internal oxyethylene content of from about 30 to 60 weight percent and (2) ethylene glycol, or a polymer/polyol-chain extender mixture wherein the polyol-chain extender is as aforesaid, and the resulting polyurethane elastomers possess unexpected hydrolytic stability.

Abstract: Novel improved polymer/polyisocyanate composition made by polymerizing acrylonitrile alone or with one or more ethylenically unsaturated monomers in situ in a polyisocyanate. The polyisocyanate comprises a diarylalkylene diisocyanate; a polymeric diarylalkylene polyisocyanate; a quasi-prepolymer of a diarylalkylene diisocyanate or a polymeric diarylalkylene diisocyanate with an active hydrogen organic compound having at least two active hydrogen atoms per molecule; a mixture of a diarylalkylene diisocyanate, its carbodiimide and its trifunctional trimeric cycloadduct; or a mixture of two or more such polyisocyanates, to form a highly stable dispersion of small polymer particles in said polyisocyante. The novel compositions are highly useful in the production of polyurethane products.

Abstract: The invention provides a polyol-chain extender mixture consisting of (1) a poly(oxypropylene-oxyethylene) polyol having a hydroxyl number of from about 20 to 60, an oxyethylene cap of from about 10 to 30 weight percent and an internal oxyethylene content of from about 30 to 60 weight percent and (2) ethylene glycol,The invention also provides polymer/polyoly-chain extender mixtures wherein the polyol-chain extender is as aforesaid.