Abstract: Polyhydroxyalkyl melamine used in the processing of textiles with amino resins to reduce formaldehyde emissions and improve textile "hand".

Abstract: Amino resin solutions having an electrical conductivity of <100 .mu.S/cm for impregnating paper are obtainable byA) methylolation of melamine with aqueous formaldehyde in a molar ratio of from 1:2 to 1:5 in the presence of a tertiary organic amine at a pH of from 7 to 12,B) etherification with a molar excess, based on the methylol groups, of a C.sub.1 -C.sub.4 -alcohol in the presence of an unsubstituted or substituted dicarboxylic acid and/or polycarboxylic acid at a pH of from 3 to 6,C) neutralization of the reaction mixture with an inorganic base and removal of the volatile components by distillation, except for a water content of <10% by weight, based on the reaction mixture, andD) addition of a C.sub.1 -C.sub.4 -alcohol to give a solids content of from 40 to 90% by weight, based on the amino resin solution, and removal of insoluble components by filtration.

Abstract: The inventive concept is to condense the phenol formaldehyde resins to a higher molecular weight than usual so far. Subsequent addition of urea thereto reduces viscosity to normal levels and increases solid content.The added urea does not take part in condensation reaction but partly reacts in the alkaline medium with formaldehyde to methylol urea (in a so called equilibrium reaction), which is formaldehyde donor for the phenol formaldehyde crosslinking reaction during the pressing of the particle board.The present invention relates to a process for producing modified phenolic resin bonding agents, characterized by preparing as known per se phenol-formaldehyde resins with a viscosity of more than 300 mPa.s (at 20.degree. C.

Abstract: An aqueous resin composition usable in sizing compositions for the treatment of mineral fibers is disclosed. This aqueous composition comprises a resin obtained by the condensation, in a basic medium, of formaldehyde, urea, and melamine, in the presence of a polyol characterized by a functionality of at least 3. This resin is stable for long periods of times and capable of dilution by a factor of at least 100%.

Abstract: Aqueous aminoresin solutions for low-formaldehyde surface bonding, based on condensates of melamine, urea, phenol and formaldehyde having a molar ratio of from 1.4 to 1.8 moles of formaldehyde, from 0.04 mole to 0.1 mole of melamine and from 0.015 to 0.04 mole of phenol per mole of urea, relative to the total amount of the aminoresin, are obtainable by mixing(A) from 20 to 40% by weight of melamine/urea/phenol/formaldehyde consensate with(B) from 60 to 80% by weight of a urea/formaldehyde condensate.

Abstract: A water-soluble, thermosetting resin comprising units derived from tris(2-aminoethyl)amine, and preferably units derived from dicyandiamide and/or epichlorohydrin, is useful as an accelerator in paper sizing, e.g. using an alkyl ketene dimer.

Abstract: A drilling fluid includes a water soluble polymer such as a sulfonated amino-formaldehyde and/or methyl cellulose or polyvinyl alcohol in addition to water, bentonite and a weighting agent such as barite. And, these drilling fluids have improved heat stability and are useful for drilling a borehole into a subterranean formation using conventional drilling equipment.

Abstract: A highly stable melamine-formaldehyde condensate solution for use as superplasticizer additives for cement or the like is produced by condensing melamine and formaldehyde in an aqueous medium, sulfonating the melamine-formaldehyde condensate, further condensing and stabilizing the aqueous sulfonated melamine-formaldehyde condensate solution.

Abstract: Aqueous gel-forming compositions are prepared by reacting for 1-10 hours at 50.degree.-95.degree. C., melamine, formaldehyde and a sulfurous acid salt with the optional addition of a gel-modifying agent and/or a gelling agent which is added to the composition immediately prior to use.

Abstract: Concentrated aqueous solutions of sulfo-containing melamine-formaldehyde condensates containing hydantoin derivatives to prolong their shelf life.These melamine-formaldehyde condensates are predominantly used as additives in inorganic binders to improve their flow and strength properties.

Abstract: Stable, water soluble, sulfonated melamine-formaldehyde and sulfonated melamine-urea-formaldehyde resin solutions are prepared in a four stage procedure, wherein (1) melamine or melamine and urea are condensed with formaldehyde in an aqueous medium at a relative low temperature and a pH of 10-13, followed by (2) the addition of a sulfonating agent, such as sodium metabisulfite, and continued reaction without pH adjustment, followed by (3) lowering the temperature of the reaction medium to 40.degree.-60.degree. C., adjusting the pH to 2.5-4 and continuing the reaction for about 5-150 minutes, and finally followed by (4) adjusting the pH to 6.5-9, heating the reaction medium to 70.degree.-100.degree. C. for 30-180 minutes, adjusting the final solids content to a predetermined value, such as 20%, and adjusting the pH to 8-11. The resulting aqueous solutions are suitable for use as superplasticizer additives to hydraulically settable cementitious materials.

Abstract: A fire retardant composition in a stable liquid form comprises the reaction product of an aqueous aldehyde, preferably formaldehyde, solution, at least one alcohol solvent, an alkanolamine, an organic catalyst, ammonium hydroxide, urea and an aqueous phosphoric acid solution. The aldehyde and urea are included in an approximately 1:1 weight ratio. A method of forming the reaction product comprises adding urea to a mixture of aldehyde, alcohol, alkanolamine, organic catalyst and ammonium hydroxide, and heating the resultant mixture to at least 150.degree. F.

Abstract: Thermally stable water soluble resins are prepared in a multistep process by reacting the waste solids from the mother liquor waste stream of a melamine manufacturing plant with an aldehyde and a sulfonating agent under controlled conditions of pH and temperature. The resin compositions are useful, for example, as superplasticizing agents for concrete mixtures, as mud drilling additives, and in the paper and textile industry. The process not only provides useful resin compositions, but also recovers solid wastes which are considered to be a major contributor to the pollution problems of melamine manufacturing plants.

Abstract: Textile treating agent for imparting crease resistance is made by mixing 1 mol glyoxal, 2 mols formaldehyde, 1 mol urea and 1.5 mol ethylene glycol and reacting the mixture first at pH 6 to 7 at 60.degree. C. and then at pH 3 at 60.degree.. The product is found to have more stable formaldehyde release properties in textile treating baths as pH of the bath is varied in the range from about 3.0 to about 4.5.

Abstract: A melamine-urea-formaldehyde resin characterized by a low rate of formaldehyde emission when cured. Made by a process where the initial reaction mixture has an F/U molar ratio of from about 3:1 to about 1:1, and undergoes a methylolation reaction at an alkaline pH. Preferably at least some of the melamine is present in the initial reaction mixture. The subsequent condensation is at a substantially neutral pH. Has a final F/U molar ratio of 1.3:1 to 0.9:1, a final F/Ueq molar ratio of 1.3:1 to 0.7:1, and a melamine content of from 0.15% to 40% by weight, dry solids basis. Useful for adhesive purposes, particularly as a particleboard binder characterized by low emission rate.

Abstract: Fluidizing agents for hydraulic bonding materials such as, for example, concrete, cements, anhydrites, plasters, limes, or others. The fluidizing agents comprise the water soluble condensation reaction products of aminosulfonic acids, having one or more aromatic nuclei, or a mixture thereof; polyamino products including polyamino acids, polyamides, or polythioamides, or their mono- or polymethylol derivatives, and polyamino derivatives of triazine; and formaldehyde or compounds which generate formaldehyde under reaction conditions. The water soluble fluidizing agents permit a reduction of the quantity of water required for mixing the bonding materials and provide an increased mechanical resistance thereto. The invention includes the bonding materials containing the fluidizing agent, the method of using the fluidizing agents in bonding materials, and method of forming the bonding materials.

Abstract: Highly concentrated aqueous solutions of low viscosity of melamine/aldehyde resins are obtained by reacting to a precondensate in a first step melamine and an aldehyde in an alkaline medium and in the presence of water together with at least one compound (I), selected from the group, consisting of an alkali sulfite, an alkaline earth sulfite, an amino sulfonic acid, an amino carboxylic acid, a hydroxycarboxylic acid, a hydroxycarboxylic acid lactone, and a polyhydroxy carboxylic acid lactone, reacting then the thus obtained mixture in a second step with at least one compound (II), selected from the group, consisting of an amino carboxylic acid, a carboxylic acid, a hydroxy carboxylic acid, a hydroxy carboxylic acid lactone, a sulfamic acid, an amino sulfonic acid, a polyhydroxy carboxylic acid and a polyhydroxy carboxylic acid lactone, and then making alkaline the obtained resin solution by adding at least one basic compound (III).

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 novel cationic aminoplastic water-dispersible resin based on melamine, formaldehyde and glyoxal salified by a mineral or organic protonic acid, or by a mixture of such acids, selected from the group comprising hydrochloric, nitric, orthophosphoric, acetic, formic acids; it contains molar ratios, for 1 mole of melamine, of 2 to 4 moles of formaldehyde, 0.1 to 3 moles of glyoxal and 0.5 to 1 mole of mineral or organic protonic acid, or the equivalent quantity of a mixture thereof.

Abstract: An improvement in a process for the preparation of neutralized urea aldehyde polmeric dispersions by acid catalyzed reaction of urea with formaldehyde plus a higher aldehyde having from two to four carbon atoms wherein the improvement comprises reacting urea with formaldehyde and a polyfunctional aldehyde selected from the group consisting of a dialdehyde of from 2 to 5 carbon atoms or a polymer of formaldehyde such as a hydroxyaldehyde or polysaccharide which has a reactive, reducible aldehyde group wherein the mole ratio of formaldehyde to the polyfunctional aldehyde is at least 3:1. The products are useful as long term, sprayable fertilizers, especially for grasses.

Abstract: A paper coating composition is described, containing a pigment and an aqueous binder as major components, and further containing a mixture of a reaction product between (a) at least one alkylenediamine or polyalkylenepolyamine and (b) epihalohydrin, and (Y) a water-soluble resin obtained by reacting urea, polyalkylenepolyamine, and dibasic carboxylic acid and reacting the resulting polyamidopolyurea with formaldehyde, or containing these reaction products.

Abstract: A composition for treating wood to impart fire retardance prepared by converting dicyandiamide to an aqueous guanyl urea solution, methylolating the guanyl urea and introducing phosphoric acid to produce a phosphate salt of the methylolated guanyl urea.

Abstract: Low-salt containing aqueous solutions of melamine formaldehyde condensation products having anionic sulfo groups are prepared in a two stage process. In the first stage melamine, formaldehyde, and bisulfite are condensed in an aqueous solution at atmospheric reflux and pH 8-10 for 1-5 hours. In the second stage, condensation is continued at pH 6-7 and atmospheric reflux for 2-6 hours. The product is cooled and adjusted to pH 7-9.

Abstract: A paper coating composition is described, containing a pigment and an aqueous binder as major components, and further containing a thermosetting resin in aqueous solution, obtained by reacting or mixing (Y) a water-soluble resin obtained by reacting urea, polyalkylenepolyamine, and dibasic carboxylic acid and reacting the resulting polyamidopolyurea with formaldehyde, (a) at least one alkylenediamine or polyalkylenepolyamine, and (b) epihalohydrin, or the reaction product between (Y) and (b) with (a).

Abstract: Highly concentrated aqueous solutions of low viscosity of melamine/aldehyde resins are obtained by reacting to a precondensate in a first step melamine and an aldehyde in an alkaline medium and in the presence of water together with at least one compound (I), selected from the group, consisting of an alkali sulfite, an alkaline earth sulfite, an amino sulfonic acid, an amino carboxylic acid, a hydroxycarboxylic acid, a hydroxycarboxylic acid lactone, and a polyhydroxy carboxylic acid lactone, reacting then the thus obtained mixture in a second step with at least one compound (II), selected from the group, consisting of an amino carboxylic acid, a carboxylic acid, a hydroxy carboxylic acid, a hydroxy carboxylic acid lactone, a sulfamic acid, an amino sulfonic acid, a polyhydroxy carboxylic acid and a polyhydroxy carboxylic acid lactone, and then making alkaline the obtained resin solution by adding at least one basic compound (III).

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: A modified melamine resin, useful for impregnating surface sheets for postformable laminates, comprises: (A) melamine and aldehyde, where the mole ratio of melamine to aldehyde is from about 1 to 1.5 to about 1 to 3, (B) about 1 to 45 weight percent, based on weight of melamine, of water soluble polyethylene glycol having a molecular weight of from about 200 to about 1,000, and (C) water; where the polyethylene glycol, melamine and aldehyde are reacted together in the presence of heat and water.

Abstract: Aminoplastic resin dispersions which are stable to sedimentation are obtained by condensation of aldehydes with aminoplastic resin formers in an aqueous medium, in the presence of water-soluble compounds of the formulaR--X--(A--O).sub.m --B--NHCONH--Y].sub.nhaving the substituent meanings mentioned in the description. The condensation is preferably carried out in the presence of dyestuffs or optical brighteners which have groups capable of condensation. The dispersions obtained thereby are particularly suitable for whitening the coating compositions used in the paper industry, and for coating paper, wood, films and textile materials.

Abstract: Aqueous dispersions of a phenolic resole and a thermoplastics polymeric material or a rubber, suitable for use as adhesives, are prepared by(a) dissolving a solid thermoplastics polymeric material, such as a polyvinyl acetal or a nylon polyamide, or rubber in a phenol,(b) adding a nonionic or anionic surface active agent and/or protective colloid,(c) adjusting the mixture to a pH above 7 by addition of a base,(d) adding aqueous formaldehyde solution, or a formaldehyde donor, to a molar ratio of phenol to formaldehyde within the range 1:1 to 1:3,(e) if necessary, adding water, and(f) heating the mixture to form a phenolic resole.

Abstract: Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with urea and then condensing the reaction product with additional formaldehyde. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.

Abstract: Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with acrylamide and then condensing the reaction product with additional formaldehyde. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.

Abstract: Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with epihalohydrin, condensing the reaction product with additional formaldehyde and then post-modifying the condensate with additional epihalohydrin or a nitrogen-containing compound. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.

Abstract: Disclosed are novel water-souble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with epihalohydrin and then condensing the reaction product with additional formaldehyde. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.

Abstract: Resinous compositions which are the Michael adducts of primary and/or secondary amines and polymers containing alpha, beta-ethylenically unsaturated moieties in conjugation with carbonyl moieties are disclosed. The compositions are depositable on substrates to form films. The films are amenable to oxidative and aminoplast cures and cure with light color. The compositions are desirable for use in cationic electrodeposition.