Abstract: A froth coated paper substrate in which the froth coating may be densified by compression when applied as a frothed resinous emulsion to improve opacity and ink-holdout of the substrate, or applied as a frothed surface size when the coating is a frothed admixture of a resin emulsion and a starch solution, or a frothed starch solution.

Abstract: Electroconductive coating formulations consisting essentially of (1) a barrier coating which comprises a copolymer of ethylene and vinyl acetate, styrene-butadiene latexes, sodium alginate or fluorocarbons with starch; and (2) a conductive coating.

Abstract: An improved technique for making the finished shell of a violin. The wood used in the construction of a violin shell is subjected to a heating and treating process which improves the sound properties of the wood in a completed violin. The wood is first subjected to a temperature of 180.degree. F. to 350.degree. F. for a period of 1 to 2 months and then coated with iodine and again heated to a temperature of 300.degree. for a period of 2 to 7 days until the wood becomes charcoal-like. The wood is then scraped and varnished to produce the finished shell of a violin.

Abstract: The invention relates to a process for the production of a melamine resin coated paper for the formation of hot-molded, scratch resistant surface layers on laminate synthetic substances and wooden working materials, whereby the paper is preimpregnated with a urea resin or an aminoplast rich in urea and is then provided with an application of a melamine resin. At the same time, a solution of a resin is used for the preimpregnation of the paper, the degree of condensation of which is higher than the degree of condensation of the melamine resin to be used for the formation of the cover layer, and the preimpregnation is dried hot, to an extent that the preimpregnation resin is hardened to the point it is practically no longer soluble in the melamine resin.

Abstract: A non-woven flexible web having enhanced wet strength and easy disposability is prepared by adhering the fibrous elements of the web with a polymer of an unsaturated acid and an unsaturated water-insoluble monomer in a ratio wherein the polymer is insoluble at lower pH values and soluble at higher pH values.

Abstract: An adhesive tape which includes an acrylic pressure sensitive adhesive mass coated on one side of a saturated paper, said paper (1) being saturated with from 20 to 75 parts per hundred parts paper of an acrylic polymer having a T.sub.g of less than 20.degree. C., and (2) comprising a mixture of woodpulp and thermoplastic fibers, said woodpulp comprising from about 10 to 75% by weight of the paper, and said thermoplastic fibers ranging in length, on the average, from about 1/4 to 3/4 of an inch and being selected from the group consisting of polyamide, polyester, polypropylene and polyethylene fibers, and a backsize coated on the other side of said paper, said backsize preferably being selected from the group consisting of styrene copolymers having a T.sub.g of at least 35.degree. C., silicones, fluorocarbons, long chain fatty acids, long chain fatty acid derivatives and mixtures thereof.

Abstract: Durable sizing of a textile substrate may be accomplished by applying thereto an aqueous dispersion or emulsion of an unthickened chain extended polyurethane having pendant carboxyl groups, a tertiary amine, a thermosetting aminoplast resin, a catalyst for curing said resin, and an anionic or nonionic surfactant.

Abstract: A process is provided for flameproofing cellulosics in which an aqueous solution is applied thereto which contains(A) the phosphorinane of the formula ##STR1## (B) an aminoplast precondensate, e.g. a methylolmelamine, and, optionally, (C) a latent acid catalyst, e.g. 2-amino-2-methyl-1-propanolchloride.The cellulosics, e.g. textiles containing natural or regenerated cellulose, are then dried up to 100.degree. C. and subjected to a heat treatment above 100.degree. C., e.g. at 130.degree. to 200.degree. C.

Abstract: A process for treating wood consisting of boiling the wood in a solution containing alkylamine and then transferring the boiled wood to an autoclave where an alkylamine permeating solution is forced into the wood under the conditions of pressure and heat. The wood is then dehydrated under reduced pressure and is then air dried.

Abstract: Flame resistance sufficient to enable cellulose containing materials to pass modern flammability standards has been imparted to these materials by application of an aqueous solution containing a methylol phosphorus compound followed by heat drying to about 15% or less moisture content, and finally by polymerizing the phosphorus material in the cellulose containing material by any one of several indirect aqueous ammonia curing techniques. The invention provides an improved process for flame proofing cellulosic materials which avoids the use of ammonia gas during the cure and which results in little or no loss in tensile strength or in an undesirable change in hand. Cellulosic textiles treated by this process retain their flame resistant properties after repeated laundering.

Abstract: A water soluble product suitable for rendering textile materials flame retardant is produced by condensing (a) at least one hydroxymethyl phosphorus compound selected from the group consisting of(CH.sub.2 OH).sub.4 P--Y and (CH.sub.2 OH).sub.3 Pwith (b) about 0.33 to 3 times the molar amount of at least one substituted phosphoramide of the formulaPO(NR.sup.1 CH.sub.3)(NR.sup.2 CH.sub.3)(NR.sup.3 CH.sub.3)whereinR.sup.1 and R.sup.2 each independently is H or CH.sub.2 OH,R.sup.3 is H, CH.sub.2 OH, CH.sub.3 or [PO(NR.sup.1 CH.sub.3)NCH.sub.3 ]--.sub.1`R.sup.2, andY is an equivalent amount of at least one anion of an acid, such as chloride, bromide, carbonate, nitrate, sulfate, phosphate or carboxylate.Advantageously, the hydroxymethyl phosphorus compound is tetrakis(hydroxymethyl)phosphonium chloride or tris(hydroxymethyl)-phosphine, and is present in about 1 to 3 times the phosphoramide wherein preferably R.sup.1 and R.sup.2 are hydrogen and R.sup.3 is hydrogen or PO(NHCH.sub.3).sub.2.

Abstract: A method and apparatus for producing baseball bats which have high surface hardness and are hardly broken, and said method comprises the steps of: forming a baseball bat having a diameter somewhat larger than the prescribed dimension; impregnating thermosetting resin into said baseball bat; and treating said impregnated bat with heat and pressure by using a set of molds consisting of three or more of divided mold sections.

Abstract: Tris(4-substitutedureidomethyl)phosphine oxides were prepared by the reaction of tris(hydroxymethyl)phosphine with substituted ureas. The phosphine oxides were used to impart flame retardancy to cellulosic materials. They were effective as flame retardants either alone or in combination with hydroxymethylphosphorus compounds or hydroxymethylnitrogen compounds.

Abstract: A process for making composite contoured sound insulating panels of a type suitable for use adjacent to structural panels of automobile vehicle bodies, which in accordance with one embodiment of the present invention, comprises forming a fibrous pad incorporating controlled amounts of heat curable thermosetting binder and a heat softenable thermoplastic binder distributed in a controlled manner therethrough.

Abstract: Flame resistance is imparted to cellulosic textiles by the application of compositions prepared by reacting phosphonic acid derivatives with ammonia or appropriate amine compounds. Textile compositions thusly obtained exhibit levels of flame resistance which remain essentially unchanged after 50 or more launderings. A comparison of textiles containing the instant compositions to textiles containing prior art flame retardants using verticle flammability tests, reveals that flame resistant textiles of the invention required one half or less of the amount of added compositions to pass the test as did prior art textiles.

Abstract: The continuously fed paper sheet is subjected to the successive steps of coating an acceptor composition at its one side, drying, calendering with a calender comprising a metal roll and an elastic roll having a Shore hardness within the range of 65 to 90, further coating a color former composition on the other side and further drying. The continuously fed paper sheet may be subjected to a cylinder ironing treatment between the first drying step and the calendering step.

Abstract: Alkyl and aryl phosphonic acids and certain salts thereof have been found useful as catalysts for the chemical reactions involved in finishing cotton and other cellulosic textiles. These versatile catalysts can be employed in a variety of finishing treatments including dimensional stability, durable press, and flame resistance and are operative under a diverse range of processing conditions.

Abstract: The invention relates to a water soluble textile finishing resin composition, the process for preparing the same, the process for finishing textile materials therewith, and to the textile materials so treated. More particularly, the invention relates to infinitely water-soluble mixtures of substantially fully etherified substantially fully methylolated melamine resins and urea:formaldehyde:glyoxal reaction products which are characterized by having a low free formaldehyde content and excellent storage stability, to the method for preparing the same, to the process for treating textile materials therewith and to the textile materials so treated.

Abstract: An oil adsorbent comprising natural fibers the surface of which is coated with a water-repellent paraffin layer which is in turn coated with an elastic rubber layer. The adsorbent is manufactured by treating the surface of the natural fibers with a paraffin emulsion, drying the fibers to form a water repellent paraffin layer thereon, treating the product with a latex, and then curing the latex to form an elastic rubber layer on the paraffin layer. The oil adsorbent has such advantages that it floats on the surface of water stably for a long period of time retaining its original form, that the contained paraffin is not back extracted by adsorbed oil and that it does not cause any trouble on burning.

Abstract: A laminated protective packaging material particularly for use in making heat sealable envelopes comprises an outer paper substrate having a continuous, aqueous based heat sensitizable coating applied to one surface thereof. The outer paper substrate may consist of conventional coated or uncoated paper, bleached or unbleached kraft paper or any other similar material. The heat sensitizable coating may consist of an alkali-soluble ethylene-acrylic acid copolymer resin or other heat sensitizable ionic polymer resin with or without the addition of filler materials for increasing the viscosity of the coating and/or for improving the heat sealing characteristics of the coating. The heat sensitizable coating is particularly characterized by its ability to be heat sealed to itself and laminated to a foamed polymeric material having a cellular structure such as polyethylene foam.

Abstract: The invention relates to high ortho phenolic resole resins and varnishes. The phenolic resole resins are produced by reacting under acidic conditions formaldehyde with a phenol in the presence of a divalent electropositive metal ion. The resulting novel resole is then dissolved in organic solvent. The solutions are useful as varnishes in the manufacture of impregnated sheets, laminates and other reinforced plastics.

Abstract: Mixtures comprising compounds of the formula ##STR1## wherein A is either NH.sub.2 or N=P(NH.sub.2).sub.3, provided at least one A is N=P(NH.sub.2).sub.3, have been found to be good flame-retardants for material made from cotton or polyester-cotton having about 30 to 70% by weight cotton. Conveniently the material can be treated with an aqueous solution containing a sufficient amount of said mixtures and the material dried to make the material self extinguishing. Then the treated and dried material is cured at a sufficient temperature to bond said compounds to the material. Alternatively and usually preferably the drying and curing can be accomplished as a single operation. The treatment solution can additionally contain auxiliary treatment agents to make the material more durable to washing.

Abstract: A water soluble product suitable for rendering textile materials flame retardant is produced by condensing (a) at least one hydroxymethyl phosphorus compound selected from the group consisting of(CH.sub.2 OH).sub.4 P--Y and (CH.sub.2 OH).sub.3 Pwith (b) about 0.33 to 3 times the molar amount of at least one substituted phosphoramide of the formulaPO(NR.sup.1 CH.sub.3)(NR.sup.2 CH.sub.3)(NR.sup.3 CH.sub.3)whereinR.sup.1 and R.sup.2 each independently is H or CH.sub.2 OH,R.sup.3 is H, CH.sub.2 OH or CH.sub.3, andY is an equivalent amount of at least one anion of an acid, such as chloride, bromide, carbonate, nitrate, sulfate, phosphate or carboxylate.Advantageously, the hydroxymethyl phosphorus compound is tetrakis(hydroxymethyl)phosphonium chloride or tris(hydroxymethyl)phosphine, and is present in about 1 to 3 times the phosphoramide which is preferably tris(N',N",N'"-methyl)phosphoramide [OP(NHCH.sub.3).sub.3 ].

Abstract: 2,4,6-Tris(carbamoylmethylamino)-1,3,5-s-triazine, abbreviated TCMT, is prepared by the reaction of 2,4,6-tris(carbethoxymethylamino)-1,3,5-s-triazine with ammonia. The methylol derivative of TCMT is prepared and applied to cotton textiles and blends of cotton and polyester to impart wrinkle recovery thereto.

Abstract: The subject of the invention is a process for the manufacture of polycondensation products from hydroxymethylphosphonium compounds, characterized in that at least one anhydrous tetrakis-(hydroxymethyl)-phosphonium salt or tetrakis-(hydroxymethyl)-phosphonium hydroxide is condensed with itself in an anhydrous medium, optionally using an acid catalyst and optionally in the presence of at least one inert organic solvent, at 100.degree. to 150.degree. C, preferably 120.degree. to 150.degree. C, the condensation being continued until 0.5 to 1.5 mols of water have been eliminated per 1 mol of phosphonium compound employed, free hydroxyl groups are, if appropriate, at least partially etherified with at least one alkanol with 1 to 4 carbon atoms, and that the salt of the polycondensation products are, where relevant, converted into the corresponding hydroxides.The polycondensation products are used for the flameproofing of organic fibre material, especially textiles.

Abstract: A method for fire retarding and preserving wood products, paper, cardboard, boxboard, cloth and other porous materials, having a plurality of internal voids, in which a water soluble silicate composition is applied to those porous materials, penetrating into the voids, and the material dried. Thereafter, a water soluble metallic salt composition is applied, also penetrating into the voids and reacting in situ to form a water insoluble metallic silicate with a high degree of water of hydration disposed throughout the voids.

Abstract: A process is described in which a cast coated high gloss polymeric coating is formed on a sheet substrate by applying an aqueous emulsion or dispersion of polymeric material to the substrate, forming a continuous film of the polymeric material in the presence of water by heating without pressure to a temperature above the film forming temperature of the polymeric material, and moulding the film under high pressure at a temperature greater than 100.degree.C. The process is capable of being operated in such a manner as to give a high gloss coating that has a gloss and smoothness as good as or better than that obtainable by cast coating of mineral pigment.

Abstract: A method of finishing cloth-covered aircraft wings and fuselage. The cloth, cotton or polyester cloth of the type made from monofilaments of the condensation product of ethylene glycol with terephthalic acid or dimethyl phthalate is, after application thereof onto the airframe, coated with a layer of latex and dried, then coated with a second, or intermediate, layer of different coating and dried, and then coated with a decorative coating material. The use of latex as a first coat on the cloth results in substantial savings in labor and time and results in a coated fabric of superior flexibility integrity and durability.

Abstract: An electrophotographic paper based on a flat surface bond type paper is given a photoconductive coating to one side of the paper and is cockled afterward. This "post" cockling process can be done on a suitable web roll during production of the coated electrophotographic stock, or an electrographic or electrophotographic copy sheet can be cockled or embossed after imaging, toning and fixing by a conventional electrophotographic apparatus.

Abstract: A method for coloring, dyeing-in or inking absorptive, rough surface paper, particularly paper which is subsequently saturated and/or impregnated with a solution of a heat-hardenable synthetic resin and then dried and pressed on a substrate, such as, wood panels, with as thin as possible a layer of coloring agent having an optically uniform coloring, in which the paper is colored by applying a magnetic roller coloring process thereto and, before or after such coloring, the paper is printed by a copperplate intaglio printing process or a flexographic (flexo-relief) printing process.

Abstract: Organic fibrous materials especially cellulosic and other textiles are rendered flame resistant upon treatment with an emulsion containing either (1) an organic bromine containing material having at least 65% bromine such as polyvinylbromide, (2) polyvinylbromide and an N-methylol agent such as trimethylolmethylglycoluril, (3) polyvinylbromide and a metal oxide such as antimony oxide, and (4) polyvinylbromide, N-methylol agent and metal oxide. The emulsions are applied to various fibers by the pad-dry-cure technique. The finish contained the added quality of wrinkle resistance and rot resistance. The treated textiles, including polyester/cotton blends remain highly flame resistant through innumerable laundry cycles.

Abstract: Dialkylphosphonoacetylurea compounds which contain hydroxymethyl groups or alkoxymethyl groups and their preparation, as well as their use for the flameproofing of cellulose-containing materials.

Abstract: A process for rendering cellulose and cellulose containing fabrics fire resistant by first impregnating the fibers with an aminoplast resin and polymerizing the resin while the fibers are wet and swollen. Thereafter, the fabric is impregnated with tetrakis (hydroxymethyl) phosphonium hydroxide, cured, washed and dried. The fabric obtained from this process possesses high fire-retardency values, soft hand, and tensile values similar to that of the untreated fabric.

Abstract: Wood can be rendered fire resistant by impregnating the wood with a solution of a monomer, such as a phenol, and a fire-inhibiting salt, drying the wood and thereafter treating the wood with a solution of a second monomer, such as formaldehyde, polymerizable with the first monomer. Heating to dryness causes polymerization of the monomers. The fire resistant properties of wood treated this way are not affected by exposure to moisture. Prior to the first impregnation, after the first impregnation and after treatment with the second monomer the wood being treated is dried to a moisture content below about 4%.