Abstract: The use of polyisocyanates as binders in the preparation of particle boards is subject to the drawback that the boards exhibit a tendency to adhere to the face of the platens used in their formation. This problem is minimized by incorporating minor amounts of a mixture of certain mono- and di- (saturated or unsaturated aliphatic) acid phosphates or the corresponding pyrophosphates, into the polyisocyanate to be used as binder. The polyisocyanates and the acid phosphates and or pyrophosphates, are applied to the particles separately, or after preblending one with the other. Whether the components are applied separately or in combination one with the other, they can each be applied either neat or in the form of an emulsion or emulsions.

Abstract: The use of polyisocyanates as binders in the preparation of particle boards is subject to the drawback that the boards exhibit a tendency to adhere to the face of the platens used in their formation. This problem is minimized by utilizing, in association with the polyisocyanate to be used as binder, minor amounts of one or more phosphates or thiophosphates of the formula: ##STR1## where R=alkyl (C.sub.3 and higher), alkenyl (C.sub.3 and higher), aryl, alkyl-substituted aryl, ##STR2## (where R.sub.2 is alkyl, aryl, or alkyl-substituted aryl, A and B are H, methyl, chloromethyl, 2,2,2-trichloromethyl, m=1-25) and lower-alkyl substituted by from 1 to 2 acyloxy groups where acyl is the residue of an aliphatic carboxylic acid having at least 2 carbon atoms; R.sub.1 is Cl, Br, lower-alkoxy, lower-alkylmercapto, arylamino, mono(lower-alkyl)amino, di(lower-alkyl)amino, hydroxy(lower-alkylene)oxy, aryloxy, hydrocarbylureido, and an enol residue; X=O or S and n=1 or 2.

Abstract: A process is disclosed for the preparation of liquid, storage-stable, polyisocyanate compositions containing a release agent formed in situ which compositions are useful, for example, as binder resins in the formation of particle boards which latter, because of the presence of the release agent, show no tendency to adhere to the face of metal platens used in their formation. The process comprises heating an organic polyisocyanate (polymethylene polyphenyl polyisocyanate preferred) with an acid phosphate (e.g. a mixture of mono- and di-alkyl acid phosphates) under conditions controlled as to time and temperature so as to yield a product which is storage stable and shows no tendency to deposit solid or to separate into two liquid phases.

Abstract: Modified polyaryl-sulphones comprise one or more polyaryl-sulphones and one or more ammonium salts or metal salts of organic sulphonic acids, preferably 0.01 to 5% by weight, relative to the total weight of polyaryl-sulphone plus salt of sulphonic acid, of the one or more organic sulphonic acid salts. These simply produced modified polyaryl-sulphones do not suffer from embrittlement under load, and susceptability to stress-cracking under the influence of solvents and of solutions of unsaturated polyester resins experienced by unmodified polyaryl-sulphones. The modified polyaryl-sulphones are particularly suitable for the production of containers, tubes, sheets and films.

Abstract: A composition and process are provided for making precipitated biconstituent nylon-cellulose shaped articles by dissolving a nylon having an amide group index of less than about 145, in a mixture of a tertiary amine oxide solvent and water, containing from about 0.5% to about 11% water based on the weight of the solution; separately forming a solution of cellulose in a tertiary amine oxide solvent containing from about 0.8 to about 29% water based on the weight of the solution and then interdispersing the two solutions to form a biconstituent dispersion. Shaped articles can be formed from the biconstituent dispersions of the invention.

Abstract: Novel photographic processing compositions including a polymeric oxime viscosity-increasing reagent for processing an exposed film unit to provide a photographic image. While this photographic image may be in black-and-white or in color and prepared by any of the heretofore known systems, of particular interest are color diffusion transfer systems for preparing a color image viewable without separation of any of the components or layers of the photographic product. The invention also includes a novel class of polymeric oximes which may be employed in such compositions.

Abstract: A graft copolymer having a polymeric backbone with pendent hydroxyl groups; wherein the hydrogen atom of at least the one the hydroxyl groups is replaced by the formula ##STR1## where R is an aliphatic group, a cycloaliphatic group or an aromatic group; R.sup.1 is an alkylene group having 2-6 carbon atoms; R.sup.2 is a polymer segment of a vinyl addition polymer, such as butyl acrylate/hydroxyethyl acrylate; coating compositions of this copolymer can be cross-linked with conventional cross-linking agents such as an alkylated melamine formaldehyde resin or an organic polyisocyanate and coating compositions useful for flexible elastomeric substrates can be prepared from this copolymer.

Abstract: A graft copolymer having a polymeric backbone with pendent hydroxyl groups; wherein the hydrogen atom of at least the one the hydroxyl groups is replaced by the formula ##STR1## where R is an aliphatic group, a cycloaliphatic group or an aromatic group; R.sup.1 is an alkylene group having 2-6 carbon atoms; R.sup.2 is a polymer segment of a vinyl addition polymer, such as butyl acrylate/hydroxyethyl acrylate; coating compositions of this copolymer can be cross-linked with conventional cross-linking agents such as an alkylated melamine formaldehyde resin or an organic polyisocyanate and coating compositions useful for flexible elastomeric substrates can be prepared from this copolymer.

Abstract: A composition and process are provided for making precipitated biconstituent cellulose-polyvinyl alcohol shaped articles by dissolving polyvinyl alcohol and cellulose in a tertiary amine oxide solvent containing from about 0.8 to about 29% water to form a biconstituent dispersion wherein the cellulose and polyvinyl alcohol comprise distinct phases, preferably with the two solutions codispersed within each other. Shaped articles can be formed from the biconstituent dispersions of the invention.

Abstract: An aqueous binder composition suitable for bonding glass fibers in a porous random mat comprises a phenol-formaldehyde-urea condensate, starch, an emulsified thermoplastic resin, dimer acid, an emulsified oil and, optionally, an organosilane coupling agent. Such bonded mats are useful for impregnation or lamination with asphalt or resin compositions.

Abstract: An agent for protecting the surface of a lithographic printing plate which is an emulsion comprising an oil phase containing a plasticizer having a solidifying point of 15.degree. C. or less and a surfactant, and an aqueous phase having dissolved therein a hydrophilic high molecular weight compound.

Abstract: A composition for the purification of blood in which impurities of the mercaptan class are present is disclosed, such composition being occluded in fibrous materials and consisting of a polymer functionalized with an organic mercury compound or with an anhydride of an organic acid. As the functionalizing compounds parachloromercury aniline, parachloromercurybenzoic acid and maleic anhydride are preferred.

Abstract: An aqueous dispersion of synthetic resin mutually dissolved with a cellulose acetate alkylate is prepared by mixing water, a protective colloid and/or a surfactant, a cellulose acetate alkylate, an oil-soluble radical polymerization initiator and at least one monomer in which the cellulose acetate alkylate and the oil-soluble radical polymerization initiator are soluble, under stirring, to form an aqueous dispersion and then subjecting the monomer to radical polymerization to form a homogeneous mixture of the cellulose acetate alkylate and at least one polymer in the particles in the aqueous dispersion.

Abstract: The speed of pultrusion can be increased and the quantity of pultruded products can be improved by using a polyester resin composition containing 4-10 parts of certain cellulose acetate butyrate resins per 100 parts of polyester resin.

Abstract: Disclosed is a new adhesive and a process for making wood laminates with the adhesive. In a preferred embodiment, the adhesive will comprise a phenol-formaldehyde condensation product having a molar ratio of phenol to formaldehyde in the range of 1:1.5 to 1:2.5, a sodium hydroxide catalyst, and from 5 to 50% bentonite clay based upon the phenol-formaldehyde condensation product solids. The preferred process employs the new adhesive to prepare laminates using high moisture content veneers, such as southern pine. The laminates exhibit average percent wood failures of from 85 to 98%.

Abstract: There is disclosed a cellulosic material such as paper or paperboard surface-sized with an aqueous dispersion of a combination of degraded starch or a starch derivative and a branched-chain, water-dispersible polyester condensation product. Said polyester is derived from the reaction of a dicarboxylic reactant, a diol or polyoxyalkylene glycol, and a phosphorus acid reactant wherein said polyester has a carboxylic acid number of about 5 to about 15 and an average molecular weight of about 4,000 to about 11,000. Mixtures of said starch and said polyester when used to surface-size cellulosic materials impart water resistance thereto.

Abstract: An improved warp size for filament yarn is provided consisting essentially of polyvinyl alcohol, urea, and mono- and di-saccharides, such as sucrose, which when applied to filament yarn from aqueous solution provides excellent abrasion resistance, low shedding, freedom from skinning, and outstanding ease of removal.

Abstract: Unsaturated polyester resins, not inhibited by atmospheric oxygen and not hibiting persistent residual surface tackiness are disclosed. These polyester resins contain at least one compound, the melting point whereof is higher than 30.degree. C., which has the formula R--X--OH, wherein R is an aliphatic or cycloaliphatic, saturated or unsaturated radical having 11-46 carbon atoms and X is a ##STR1## or --CHR', wherein R' is hydrogen, an aliphatic or cycloaliphatic radical.

Abstract: An ink for an ink-jet printer having a specific resistance of 1 k.OMEGA.-cm or less and comprising (1) as an organic solvent in a vehicle (a) dichloromethane or (b) a mixed solvent of dichloromethane and at least one member selected from halogenated lower alkanes except for dichloromethane and halogenated lower alkenes and (2) as a coloring agent (a) a basic dye or (b) a mixture of a basic dye and at least one selected from oil-soluble dyes and organic pigments can ink-jet print letters, symbols, etc. on a hydrophobic substrate.

Abstract: A composite of polymeric matrix and wood pulp is prepared by masticating such proportion of polymeric matrix as provides a continuous phase and wood pulp having a tensile strength below about 10 kg/cm.sup.2. Water is added if needed to provide the requisite low tensile strength.