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 1000-500,000 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: This invention deals with porous, substantially foam-free composite material of grainy solid material particles of a certain grain size, which is solidified with a binder mixture of isocyanate-group-containing prepolymers, water, and possibly auxiliaries, and the manufacture and application of such products.

Abstract: Alkaline cleaning compositions are prepared by combining water, alkali metal hydroxide and certain surfactants which composition forms a gel when applied to a hot surface. These compositions are applied as a liquid to a hot surface to emulsify grease thereon. The surface is then allowed to cool sufficiently to cause the gelled composition thereon to revert to liquid form thereby facilitating its removal from the surface.

Abstract: There is disclosed a polyether polyol-organic polyisocyanate binder for bonding cellulosic materials under conditions of heat and pressure and a process therefor. Sticking to mold faces is eliminated and strong moisture-resistant bonds can be obtained using as starting materials cellulosic materials such as wood chips containing the moisture present under normal manufacturing conditions of temperature and humidity.

Abstract: There are disclosed a phosphorus-containing polyester and size compositions especially useful for sizing spun and continuous filament yarn produced from hydrophobic fibers and useful in protecting these fibers from abrasion during the weaving process. When the size is used alone or in mixtures with conventional size agents such as starches and polyvinyl alcohol, improved adhesion is obtained to hydrophobic fibers or blends thereof with cotton or other hydrophilic fibers. Polyester, polypropylene and polyamide and other fibers are effectively sized with the size compositions of the invention. The polyester consists of a branched chain phosphorus-containing polymer which is the reaction product of at least one dicarboxylic reactant, at least one diol or polyoxyalkylene glycol and a phosphorus acid reactant selected from the class consisting of phosphorus pentoxide, phosphoric acid and mixtures thereof.

Abstract: The invention concerns a process for making heat-resistant polyurethane elastomers from substantially linear polyhydroxyl compounds of high molecular weight, polyisocyanates, chain extenders, and, if desired, catalysts and additives, in which the polyhydroxyl compound is reacted with diisocyanate material in amounts to give an OH:NCO ratio of 1:1.10 to 1:2 and produce an adduct, and the adduct is subsequently reacted with symmetrical aromatic diisocyanate and a diol as chain extender (preferably a linear diol containing 2,4 or 6 carbon atoms) to obtain a crystalline or crystallizable diurethane or polyurethane of good heat resistance.

Abstract: Polymers reactive towards free amino groups, such as polyamides, polyureas, polyurethanes or polyesters, are provided with durable modified properties by being brought into contact with an additive polymeric material which (a) is compatible with the polymer being treated, (b) contains a plurality of oxyalkylene groups effective to impart to the modified polymer improved properties such as reduced static propensity, modified dyeability, or greater water absorbency; and (c) has one or more reactive sites, in the form of a pendant free primary amino group or potential primary amino group, blocked by the dehydration of an aldehyde or a ketone with the amine, which in either case affords the capability in proper circumstances of attaching the modifying polymeric material to the polymer being treated by a covalent chemical bond.

Abstract: A method of compression testing resilient articles comprising the steps of cutting a sample to desired predetermined dimensions, placing the sample in a preflexing machine to provide preflexing at test specifications, and testing the preflexed sample in a sophisticated compression testing machine. The preflexing machine uses a fluid operated cylinder to move a pressure foot member into and out of the sample to compress same the desired number of times, at the desired rate of deflection and desired number of compressions at a fixed total proportion of compression. The machine is automated through a stepping switch driven in steps by a pulse operated drive mechanism which receives pulses from limit switches associated with the movement of the pressure foot. The stepping switch controls the cylinder through solenoids operating a switching valve means to alternately supply fluid pressure on each side of the piston in the cylinder.

Abstract: An oxyalkylated, halogenated product useful in making polyurethane foams is prepared by reacting an epoxide compound with a halogenated aromatic hydroxyl-containing compound (phenol) which is either a monohydroxy or polyhydroxy compound. Said aromatic hydroxyl compound has a hydroxy group attached directly to the aromatic nucleus. By the process of the invention, hydroxyalkylation occurs in the presence of a catalyst selectively active in the predominant oxyalkylation of aromatic hydroxyl groups, said catalyst selected from the group consisting of zinc, magnesium and a zinc or magnesium salt as defined. The reaction mixture can include an aliphatic hydroxyl-containing compound, a neutral phosphorus compound, and aliphatic or aromatic anhydrides or mixtures thereof to enhance the flame-retardant properties of the oxyalkylated product.

Abstract: There are disclosed oxidation stable heteric or block copolymer polyoxyalkylene compositions suitable for the treatment of thermoplastic fibers, particularly polyester and nylon fibers, prior to the processing of such fibers in conventional processes to impart false twist, or to produce textured yarn or other type yarns by mechanical heat treatment and tensioning processes. The polyoxyalkylene compounds of the invention derived from lower alkylene oxides can be initiated with a difunctional aromatic compound containing reactive hydrogens such as a dihydroxyphenol to obtain an aromatic nucleus in the polymer chain and are capped on at least one end of the chain with an alpha-olefine epoxide or mixtures thereof with at least one aliphatic monocarboxylic acid. Hydroxyl functionality can be retained on one end of the molecule.

Abstract: An improvement in the recovery of mercury from aqueous streams is achieved by the use of polytetrafluoroethylene filters.

Abstract: The invention provides a method of use for a spotting-agent composition for use in laundering garments is provided which consists essentially of a solution of (1) about 10 weight percent or more of a nonionic surfactant produced by reacting a mixture of fatty alcohols containing 10 to 18 carbon atoms (with the proviso that the proportion of such alcohols which is attributable to alcohols containing 17 or more carbon atoms is limited to about 20 percent by weight) with mixed lower-alkylene oxides (ethylene oxide and propylene oxide) to such an extent as to have the mixed oxides comprise about 57 to 68 weight percent of the total fatty alcohol plus alkylene oxides used, with the proportion of ethylene oxide in the mixed oxides used being about 50 to 70%, in (2) an isoparaffinic solvent made of a mixture of isoparaffins containing about 11 to 14 carbon atoms.

Abstract: Low-viscous, stable polymer dispersions are prepared by blending a hydroxy-containing finely-divided solid polymer with a polyol having an equivalent weight between 500 and 10,000. The resulting dispersions are particularly useful in the preparation of polyurethanes having enhanced physical properties particularly load bearing or hardness, tensile strength and tear resistance.

Abstract: Permanent antistatic properties are imparted to melt-formed polymers by the incorporation therewith of a polymer composition prepared by reacting a hydrogen-reactive compound with an alkylene oxide adduct of a nitrogen-containing compound. Further, the polymer composition may be capped to minimize reaction with the melt-formed polymer.

Abstract: Foams characterized by isocyanurate and urethane linkages are prepared by condensing: (a) an organic polyisocyanate with a polyol or (b) a quasi-prepolymer in the presence of a blowing agent and a catalytically effective amount of an alkali metal salt of an organic phosphinic acid. The catalysts of the invention offer the advantages of longer cream times and fully cured foams in acceptable times, thus, finding particular utility in pour-in-place and slab stock foaming applications.

Abstract: A roll-on perfume composition comprising based on 100 parts by weight of total composition:(a) from 5 parts to 15 parts of an essential oil,(b) from 25 parts to 40 parts of an alcohol,(c) from 20 parts to 40 parts of certain polyoxyethlene polyoxypropylene block copolymers, and(d) from 5 parts to 50 parts of water.The resulting compositions are viscous, clear and stable perfumes.

Abstract: Liquid and solid compositions are provided for souring and imparting softness to freshly laundered textile materials. When in the form of a stable homogeneous liquid, the composition may contain (a) a quaternized fatty amide, an aqueous emulsion of partially oxidized polyethylene or a fatty amphoteric compound as the softening agent, (b) hydrofluorosilicic acid, ammonium silicofluoride, zinc silicofluoride, ammonium acid fluoride, potassium acid fluoride, or orthophosphoric acid as the souring agent, and (c) water. When in the form of a stable dry solid, the composition may contain (a) a quaternized fatty amide or fatty amphoteric compound as the softening agent, and (b) ammonium silicofluoride, potassium silicofluoride, sodium silicofluoride, zinc silicofluoride, ammonium acid fluoride, sodium acid fluoride or potassium acid fluoride. A method of preparing the liquid composition is provided which insures that it remains stable and homogeneous while awaiting use.

Abstract: Membranes for use in chlor-alkali cells, made of a copolymer of tetrafluoroethylene and sulfonylfluoride perfluorovinyl ether, have their selectivity improved, with resulting substantial decrease in consumption of electric power per mole of sodium hydroxide produced, by being heat-treated at 100 to 275.degree. Centigrade for several hours to four minutes. The current efficiency is substantially increased, and the power consumption, per unit of sodium hydroxide produced, is usually decreased by about 10 percent or more.

Abstract: Nonionic surfactant compositions are made by reacting a 3 to 30-unit polyglycerol as hydrophile with a hydrophobic glycidyl ether in sufficient quantity to substitute 4 to 25% of the hydroxy groups of the polyglycerol. By using glycidyl ethers (which can be made conveniently by reaction of hydrophobic alcohol with epichlorohydrin) it becomes possible to avoid the expense of working with long-chain 1,2-epoxides. The surfactant compositions obtained have solubility and stability in a variety of concentrated ionic solutions, and especially in basic media.

Abstract: As a tall-oil-soap skimming aid, there is added to black liquor resulting from the pulping of coniferous trees a terpolymer of (a) an alpha-beta-unsaturated acid, (2) an alkylate of an alpha-beta-unsaturated acid, and (3) allyl alcohol. The acid contains 3 to 4 carbon atoms and comprises about 60 to about 88 percent by weight of the terpolymer. The alkylate comprises about 6 to 28 parts by weight of the terpolymer, being an ester of the abovementioned acids, the ester having an alkyl portion containing 1 to 18 carbon atoms. Allyl-alcohol units are present in the terpolymer to an extent of 4.5 to 20 weight percent. The terpolymer can be produced by free-radical polymerization in accordance with the customary procedures. With the use of such a copolymer, the proportion of tall oil recovered from black liquor is very substantially increased.