Abstract: Novel, macroreticular cross-linked anion exchange and adsorbent copolymers of at least one monovinylidene ring-containing nitrogen heterocyclic monomer are prepared. Preferred monovinylidene ring-containing heterocyclic monomers are the various vinylpyridines.

Abstract: A two component system, and method for its preparation, from which a phenol-formaldehyde resin foam may be prepared, which system comprises in a first component a phenol-formaldehyde resin, a blowing agent which is an inert, low boiling liquid, an effective amount of a nitrogenous modifier capable of permitting dispersion of the blowing agent in the resin, and a surfactant; and in a second component an acid catalyst system dispersed in a liquid polyhydroxy compound, in a weight ratio of acid catalyst to polyhydroxy compound of at least 1:1. These systems enable simpler handling and placement techniques being shelf storable, compared to the known shelf storable systems which involve three, or more, components.

Abstract: The instant invention relates to a one-step process for the production of elastomeric moldings which have a compact surface by the technique of reaction injection molding, using highly reactive systems of specific polyisocyanates, polyhydroxyl compounds and specific active aromatic polyamines. The instant invention further relates to active hydrogen containing blends useful in preparing elastomeric moldings, said blends comprising polyhydroxyl compounds, and specific active aromatic diamines. The blends herein may also contain catalyst for the reaction between hydroxyl groups and isocyanate groups.

Abstract: A reaction product of a fatty acid ester and an organic polyisocyanate is included in a foamable reaction mixture containing an organic polyisocyanate to provide a molded product which can be removed from a mold whose surface has not been coated with conventional mold release agents.

Abstract: Unsaturated polyester resins will form foamed or solid plastics with water-binding agents containing an oxidated silicon compound in the presence of an initiator.

Abstract: Hydrolytic stability of flexible polyesterurethane foam containing haloalkyl phosphate fire retardant is substantially increased by including a small amount of alkyl benzyl phthalate in the reaction mixture used in preparation of the foam.

Abstract: Curable organic resin compositions, such as epoxy resins, are provided, based on the use of a diaryliodonium salt-redox catalyst curing system. The curable compositions can provide flexible or rigid organic resin foam when used with a volatile organic solvent as a result of exothermic heat of cure.

Abstract: Poly(aldehyde amino silicate) foams are produced by mixing an amino compound, an aldehyde, a silicon oxide compound and a blowing agent; then a curing agent is added, thereby producing a rigid, porous product.

Abstract: Covers a method of producing a polyurethane by utilizing N-(dimethylaminopropyl)methacrylamide as a catalyst in reacting an organic polyisocyanate with an organic polyester polyol or polyether polyol in the presence of said catalyst.

Abstract: Production of foamed plastics with improved combustion characteristics by condensing aqueous solutions of aminoplast precondensates with at least bifunctional organic isocyanate whereby an acid curing catalyst and an accelerator for polyurethane formation is used. For performing the condensation, the aqueous solution of the precondensate is added to the mixture of isocyanate and the accelerator at the same time as but separately from the acid curing catalyst.

Abstract: Shaped flame retardant rigid thermoplastic foams are provided having high impact strength and superior smoke density and superior radiant panel test values. Blends of dichloroethylene bisphenol polycarbonate and a high performance thermoplastic polymer, such as isopropylidene bisphenol polycarbonate are injection foam molded under melt conditions to a variety of shaped structures.

Abstract: Silicon halides will react chemically with polyols to produce polyol silicate resinous products which will react chemically with polyisocyanates to produce polyisocyanate silicate solid or cellular solid products.

Abstract: Advantageous rigid polyurethane foam properties (e.g. compressive strength) can be improved and the proportions of polymerization catalyst and/or surfactant needed to provide a given level of such properties can be lowered by preparing such foams from compositions comprising, in addition to the conventional foam-forming reactants including polyisocyanate and polyol, from about 3% to about 10%, based on the weight of the polyol, of a plasticizer selected from essentially halogen-free phosphates and carboxylates containing at least one aryl radical, e.g. isodecyl diphenyl phosphate or butyl benzyl phthalate.

Abstract: Novel salts of tertiary amines and alpha-substituted carboxylic acids have advantages as delayed action thermally activated catalyts such as in urethane and epoxy catalysis. Some salts of tertiary amines tend to dissociate reversibly when heated. However, the compounds of the present invention preferentially decompose, irreversibly, to generate carbon dioxide when heated.

Abstract: A molding composition is disclosed for forming in a single step a natural sandwich foam product having a cellular core and a thick, densified outer layer. A hard, particulate filler material such as fly ash is admixed with an unreacted, rigid polyurethane foam system, together with a density distribution control agent such as carbon tetrachloride which lowers the viscosity of the admixture. In molding, the mold cavity is charged with the admixture and the foam reaction is permitted to occur with the mold closed. The resultant, filled foam product has a thick outer layer formed adjacent the mold surface of substantially greater density than its core. In the densified layer, both the polyurethane and filler material components of the resultant product are concentrated to provide over three times the density of the core structure. Formulations are set forth which provide substantial layer thickness and an outer surface having a durometer hardness value of 50 or greater over the entire surface area.

Abstract: Liquid oxyalkylated polyol prepolymers are prepared by oxyalkylating a prepolymer prepared from a hydroxy aromatic compound, an aldehyde and furfuryl alcohol with an alkylene oxide containing about 2-4 carbon atoms. The oxyalkylated polyol prepolymers have a viscosity of 1,000-500,000 centipoises at 25.degree. C. and contain about 1.1-6 moles of interpolymerized aldehyde, about 3.1-15 moles of interpolymerized furfuryl alcohol, and about 1-10 moles of interpolymerized alkylene oxide for each mole of interpolymerized hydroxy aromatic compound. The resultant prepolymers are highly reactive and may be further polymerized with or without monomers such as polyisocyanate to produce flame retardant solid or cellular interpolymers. Flame retardant solid or cellular polyurethanes are prepared in one variant by interpolymerizing organic polyisocyanates with the oxyalkylated polyol prepolymers. In another variant, flame retardant closed cell cellular interpolymers are provided.

Abstract: Polyurethane foams are prepared by reacting an active hydrogen-containing organic compound with an organic polyisocyanate in the presence of a blowing agent and an amylaceous material which has been stabilized (a) by treating with a stabilizing agent containing an effective amount of an antioxidant capable of inhibiting the formation of oxidation products in the amylaceous material upon exposure to an oxidizing atmosphere or (b) by removing substantially all, or at least a major portion, of the oxidizable materials, particularly fatty acids or fats, from the amylaceous material.

Abstract: Phenol silicate compounds and resinous products with free hydroxyl and silicate groups will react chemically with polyisocyanate compounds to produce poly (urethane silicate) prepolymers and may be cured by use of water to produce a solid/cellular solid reaction product.

Abstract: Liquid isocyanate-terminated polyurethane prepolymers are cured by mixing them with 10% to 200% by weight, based on the weight of the prepolymer, of an organic hydroxy silicate compound or their condensation product. The cured material may be non-porous elastomeric products or fine cellular products.

Abstract: Reaction products of certain tertiary amines, alkylene oxides and carboxylic acids have been found to be outstanding catalysts for the preparation of polyisocyanurates, polyisocyanurate foams, polyurethane foams and poly(urethane-isocyanurate) foams. Typical tertiary amines are 1,3,5-tris (N,N-dialkylaminoalkyl-5-hexahydrotriazines, pyridine and bis-(N,N-dialkylaminoalkyl) ethers.

Abstract: A mold-release agent is provided which consists essentially of 99.9% to 80% by weight of an aromatic polyisocyanate containing at least two isocyanate groups and 0.1% to 20% by weight of a fatty acid ester, e.g., glycerol trioleate, olive oil, peanut oil, etc. A process of using the material by incorporating it in polyurethane foams is disclosed.

Abstract: A hydrophilic flexible open-celled poly (urea/urethane) sponge derived from prepolymer produced by reaction of a polyoxyalkylene polyol with a stoichiometric excess of an organic polyisocyanate, said sponge containing uniformly distributed therethrough a readily releasable wax composition, and methods of making and using same for waxing surfaces.