Abstract: A process for preparing a ureaform type resin fertilizer as an aqueous suspension which is stable and preferably has an Availability Index of at least 70 which, in a preferred embodiment, comprises: adding urea to an acidic solution of formaldehyde having a pH of 0.25 to 1.75 at a rate of addition to keep the temperature below 98.degree. C. until the mole ratio of formaldehyde to urea is from 3.5:1 to 2.6:1; adjusting the pH of the reaction mixture to between about 5.2 and 6.8 and the temperature from about 75.degree. C. to 92.degree. C. and adding urea until a formaldehyde to urea mole ratio of 0.5:1 to 1.8:1 is attained and the nephelometric turbidity of the reaction mixture is in the range of 200 to 800 NTU units; and then neutralizing the reaction mixture to a basic pH not exceeding about 8.5.

Abstract: Urea-formaldehyde precursors are produced in a two-stage process. In the first stage, urea is slowly added to an acidic solution of formaldehyde at a pH of 1.0 or less, at a rate that maintains the temperature at 50.degree. C. but not in excess of 98.degree. C. When an F/U mole ratio of 3.25:1 to 2.5:1 has been attained, the pH is adjusted to the basic side, generally from about 7.2 to about 8.0. In the second stage, additional urea is added to the condensate produced in the first stage, to attain an F/U mole ratio of 3.0:1 to 2.5:1. The condensate and precursor have fertilizer applications. The precursor is useful in urea-formaldehyde resin production.

Abstract: Process for preparing a urea-formaldehyde resin in an aqueous formulation particularly intended for use as a particleboard binder. The resin cures to be low emitting. In the cured state, the resin has more than twice as many methylene groups as methylene ether groups, and generally is characterized by residual formaldehyde that is at least 40% and often 50% less than that of a cured resin of the same F/U mole ratio but produced by an initial base catalyzed methylolation procedure of which the primary prepolymer products are mostly monomethylol and dimethylol urea precursors, followed by condensation.

Abstract: A process for preparing a urea-formaldehyde base resin having a F/U molar ratio of 1.0:1-1.2:1, that is hydrolytically stable, which comprises adjusting a formaldehyde solution to a pH of 0.5-2.5, slowly charging urea to said formaldehyde solution while maintaining the temperature at 40.degree.-70.degree. C., neutralizing the reaction mixture after obtaining a Gardner viscosity in the range of T+-V+, then adding the final charge of urea and permitting equilibration.

Abstract: A process for bonding lignocellulosic material under heat and pressure, where the bonded lignocellulosic material is characterized by a low emission of formaldehyde, which comprises applying a binder to said lignocellulosic material, said binder comprising a urea-formaldehyde base resin having a ratio of formaldehyde to urea of 1.0:1-1.2:1, said base resin having essentially no free formaldehyde and said base resin when cured containing substantially more methylene groups than methylene ether groups, consolidating said lignocellulosic material and curing the binder.

Abstract: This foaming system includes a foaming agent solution and a resin solution. The foaming agent includes the relative amounts of 15 to 30 parts by weight of a salt of an alkyl diphenyl oxide sulfonate, 10 to 25 parts of 85% phosphoric acid and 15 to 25 parts urea, all in an aqueous solution. The resin solution includes a resin prepared by reacting 1 to 2.4 mols of formaldehyde per 1 mol of urea, 6.5 to 500 mmols polyethylene glycol as foam charring agent, 0.3 to 1.2 mmols of calcium carbonate as uniform foam cell size agent, 3 to 310 mmols of dicyandiamide as foam hydrolysis resistance agent, 2 to 30 mmols of sodium bromide as foam aging agent, and sufficient water to make a 35 to 45% solution. In preparing the foam, one part by weight of the foaming agent solution of about 5% solids concentration is aerated and then 1.0 to 1.5 parts by weight of the resin solution is sprayed thereon to obtain foam with an average linear shrinkage of about 0.25%.

Abstract: A tire applique comprising a laminate material of first, second and third layers, the first layer being a vulcanizable rubber latex coating or other elastomer, the second layer being a stamping material secured to the first layer, and the third layer being a data material hot stamped to the second layer. The tire applique is vulcanized or otherwise adhered to a tire surface to provide identification material for the tire.

Abstract: This foaming system includes a foaming agent solution and a resin solution. The foaming agent includes the relative amounts of 15 to 30 parts by weight of a salt of an alkyl diphenyl oxide sulfonate, 10 to 25 parts of 85% phosphoric acid and 15 to 25 parts urea, all in an aqueous solution. The resin solution includes a resin prepared by reacting 1 to 2.4 mols of formaldehyde per 1 mol of urea, 6.5 to 500 mmols polyethylene glycol as foam charring agent, 0.3 to 1.2 mmols of calcium carbonate as uniform foam cell size agent, 3 to 310 mmols of dicyandiamide as foam hydrolysis resistance agent, 2 to 30 mmols of sodium bromide as foam aging agent, and sufficient water to make a 35 to 45% solution. In preparing the foam, one part by weight of the foaming agent solution of about 5% solids concentration is aerated and then 1.0 to 1.5 parts by weight of the resin solution is sprayed thereon to obtain foam with an average linear shrinkage of about 0.25%.

Abstract: Apparatus and method for manufacturing a wire wound flexible torque transmission cable. The apparatus includes multiple wire guides to facilitate the winding of a plurality of preformed spring or wire coil members onto a mandrel or a previously wrapped layer. The apparatus further includes a means for synchronously moving the wrapped mandrel longitudinally and rotatingly with respect to the wire guide for accomplishing the winding process. The cable winding process generally includes the steps of winding a plurality of wires to form a single layer, each wire being in the form of a preformed cylindrical helical coil stock. Multiple layers of wire are similarly wound on the next previous layer, the windings normally being in a reverse direction from the next previous layer.

Abstract: A multiple level fluid bearing track assembly having a plurality of shoulders thereon to form an upper and lower level for transporting articles of various sizes. A plurality of fluid jet inserts are incorporated within the track assembly to provide the necessary lift and motive force to the article to be transported. With the multiple level track assembly of this invention a variety of different sized articles can therefore be interchangeably or simultaneously transported without the physical alteration of the track assembly.