Abstract: The present invention relates to polyurethane hot melt adhesives that are hardened by the action of moisture and which contain at least one reaction product from a component that contains NCO groups and an essentially linear hydroxypolyester, hydroxypolyether, and/or hydroxypolyetherester component. In addition, the present invention relates to a procedure for manufacturing a material that is permeable to water only in vapor form, this being in the form of a fiber material, in particular in the form of a web, which is joined to a polyurethane film, in which the fiber material is coated with a polyurethane material and subsequently the polyurethane material is hardened to form a water-vapor permeable film. The present invention also relates to a material that is permeable to water only in vapor form and which is in the form of a fiber material, in particular in the form of a web, that is bonded to a polyurethane film.

Abstract: Shrink-resistance is provided in a wool textile by applying ionizing radiation and a polymer resin (or mixture of resins) selected such that the resin will be bonded onto the wool fibres and form a relatively thin application, the process being carried out substantially at ambient temperature. The radiation step may be a preliminary step followed by the fixing of polymer resin or polymer resin mixture onto the wool in the absence of catalysts or alternatively the polymer resin may be applied before the radiation process. The polymer resin may be just one resin selected from a group of known resins having a shrink-resistant effect on wool textiles when fixed thereto by prior art techniques, or a mixture of such known resins may be used.

Abstract: This disclosure is concerned with an improved process of treating keratin-containing fiber materials with aqueous solutions of polyisocyanate bisulphite adducts to improve their resistance to felting and shrinkage. The material is pretreated with an aqueous bath containing both a compound carrying a cationic group and the salt of a polyvalent metal or the material is pretreated with just the cationic compound but the polyvalent metal salt is present in the aqueous bath used to apply the bisulphite adduct.

Abstract: Knitted fabrics are fulled and shrinkproofed by a process wherein a loosely-knitted fabric is exposed to a diisocyanate. The so-treated material is then fulled and treated with a polyamine, whereby a polyurea is formed on the surface of the fibers and the fabric thus becomes shrinkproofed.

Abstract: Process for preparing a vehicle substance capable of covalent bonding with iological material, especially enzymes, by reacting a matrix containing --OH or NH.sub.2 groups with an organic diisocyanate under anhydrous conditions. The distance between the matrix and biological material may be extended by a stepwise reaction of the matrix with an organic diisocyanate, and organic spacer containing two or more --OH and/or NH.sub.2 groups and again with an organic diisocyanate. The coupling of the vehicle material with biological material takes place in buffered aqueous solution.

Abstract: A transparent cellulosic paper is produced by coating or impregnating a cellulosic paper with an organic solvent solution containing a compound having a weight-average molecular weight of 200 to 2,000 and having at least two isocyanate groups in a molecule or with an organic solvent solution containing, in addition to said compound, at least one compound selected from the group consisting of an aliphatic monohydric alcohol having 6 to 18 carbon atoms and a nonionic surface active agent to the polyethylene glycol type having one hydroxyl group in a molecule, the ratio OH/NCO in the solution being less than 1; removing said organic solvent; and allowing the coated or impregnated paper to harden by aging.

Abstract: A method for the preparation of a composition containing PCS from polyisocyanates which comprises the following steps in the stated order:Step 1: Mixing a polyisocyanate with(a) an aqueous solution of an alkali metal or ammonium bisulphite or metabisulphite, or an aqueous solution of a mixture of any two or more of these salts, and(b) a compound or mixture of compounds containing on average one or more tertiary amino group per molecule, and(c) at least one water miscible solvent containing a hydroxy and/or ether group.Step 2: Mixing the reaction mixture from Step 1 with either or both of(d) at least one mineral acid or a solution thereof(e) an aqueous dispersion, emulsion, or latex of at least one water-insoluble organic polymer prepared from the polymerization of at least one ethylenically unsaturated monomer or an organic polymer containing a plurality of urethane linkages.

Abstract: Hydrophilic additives are provided which may be introduced into fibrous articles to provide improved water absorbency and charge dissipation properties which resist abrasion and laundering. The fibrous articles are treated by contacting the articles with at least one hydrophilic additive, polyfunctional reactant and nitrogen catalyst under conditions sufficient to incorporate hydrophilic additive, polyfunctional reactant and nitrogen catalyst in the articles, followed by heating the fibrous articles to obtain the desired fiber characteristics.

Abstract: Hydrophilic additives are provided which may be introduced into fibrous articles to provide improved water absorbency and charge dissipation properties which resist abrasion and laundering. The fibrous articles are treated by contacting the articles with at least one hydrophilic additive and nitrogen catalyst under conditions sufficient to incorporate additive and catalyst in the article, followed by heating the treated article to obtain the desired fiber characteristics.

Abstract: Certain chemically modified cotton fabrics have been treated with vapors of glycidol at reduced pressures in a heated chamber to impart improved wet and dry wrinkle recovery characteristics.

Abstract: The invention relates to a process for the manufacture of prints which are fast to wet processings and sublimation on textile or non-textile sheets by means of the transfer printing process, wherein dyestuffs containing mercapto, hydroxyl and/or amino groups and applied to sheets by means of the transfer printing process are fixed by the action of isocyanates or masked isocyanates, which are applied to the sheets before, during, or after the dyestuff transfer.

Abstract: A method for improving the elasticity of a textile material is provided wherein a preshrunk textile material, while maintained in a relaxed state, is impregnated with a liquid admixture consisting essentially of a polyisocyanate, a polyether diol, and a polyether polyol having at least three hydroxyl groups per molecule, reacting the polyisocyanate with the polyether diol and polyether polyol to provide a polymeric impregnated textile material, and curing the polymeric impregnated textile material to provide a textile material having improved elasticity.

Abstract: The invention relates to dyestuff preparations which containA. dyestuffs which are insoluble in tetrachloroethylene,B. dispersing agents of the formulaR.sup.1 [--NHCO--(O--CHR.sup.2 --CHR.sup.3).sub.X --(O--CHR.sup.4 --CHR.sup.5).sub.y --R.sup.6 --].sub.nwhereinR.sup.1 denotes a hydrocarbon radical such as remains after removing n isocyanate groups from a corresponding isocyanate,n is a number from 1 to 6R.sup.2 - r.sup.5 denote hydrogen, alkyl, phenyl or chloromethyl,X represents the number 0 - 100 andY represents the number 0 to 50 andR.sup.6 denotes O--aryl, O--aralkyl, O--alkaryl, O--CO--alkyl, O--CO--aryl, NH--CO--alkyl, NH--SO.sub.2 --alkyl or O--alkyl andC. optionally, organic solvents of low volatility. The preparations are extremely suitable for the dyeing textile materials from organic, water-immiscible solvents.

Abstract: Fluorinated condensation polymers which are made up of a combination of Blocks I and II: ##STR1## In these structures R.sub.f is a branched or linear perfluoroalkyl or perfluorooxaalkyl group of 5-18 carbons,R.sup.3 is an aliphatic triradical of 2-50 carbon atoms selected from the group consisting of branched or straight chain alkylene, alkylenethioalkylene, alkyleneoxyalkylene and alkyleneiminoalkylene,R.sup.4 is hydrogen or methyl,D is the organic divalent radial of a diisocyanate,k is 8-100,m is an integer of 1 to 5,n is 1 or 2, andp is an integer of 1 to 5,Wherein Blocks I and II are combined in a ratio of at least about 15% to 70% by weight of Block I to 30% to 85% by weight of Block II.The blocks as defined are connected by urea linkages in the final product condensate. The polymer condensates of this invention are useful as coatings on textiles, glass, linoleum, leather, wood, tile, metals, plastics, and various materials.

Abstract: The addition of certain compounds -- namely mineral acids, oxidising agents, materials capable of producing these acids and agents, or mixtures of the same -- to BAPs or the corresponding mono-iso(thio)cyanate adducts renders these adducts more stable to storage and heat.

Abstract: Cellulosic fabric is reacted with a mixture of diethylene glycol, dibasic acid, and either ethylene carbonate (1,3 dioxol-2-one) or propylene carbonate (4-methyl 1,3 dioxol-2-one) in a heated evacuated oven. The resultant product has polyester linear grafts and crosslinks and improved resistance to wrinkling.

Abstract: Partially Aminoethylated cotton fabric is reacted with either propylene carbonate (4-methyl 1,3 dioxol-2-one) or ethylene carbonate (1,3 dioxol-2-one) with potassium carbonate as catalyst. Reaction is carrid out in a heated vacuum oven. The resultant product has urethane crosslinks and improved wrinkle recovery properties.

Abstract: Partially carboxymethylated-cotton fabric prepared by a non-aqueous procedure is reacted with either ethylene carbonate or propylene carbonate in a heated, evacuated oven. The product of either reaction is a fabric with high conditioned and high wet wrinkle recovery.

Abstract: The invention describes a process for the discontinuous aftertreatment of synthetic hydrophobic textile material, especially polyamide or polyester textile material, which is dyed preferably from an organic liquor with disperse dyestuffs containing hydroxyl and/or amino groups, with chemical fixing agents such as isocyanates, masked isocyanates, acid halides or acid anhydrides, from chlorinated aliphatic hydrocarbons, especially perchloroethylene, at temperatures above 80.degree.C, and subsequently rinsing and drying this material on which dyeings are obtained that are fast to water, solvents, light and are also very fast to sublimation.

Abstract: A paperboard impregnated with polyurethane resin having specific NCO content and average molecular weight at the rate of 0.05 to 5.0 weight percent relative to the paperboard has excellent mechanical properties such as compressive strength, tensile strength, tearing strength, folding endurance, etc., even in wet state.