Abstract: The invention relates to textile surface structures containing A) 20 to 90 wt % melamine fibres A), and B) 10 to 80 wt % flameproof polyester fibres B).

Abstract: The disclosure is directed to a method of using melamine resin fibers, to an insulating material comprising a) from 5 to 95% by weight of melamine resin, and b) from 5 to 95% by weight of polyalkylene terephthalate fibers, and to processes for producing it.

Abstract: The invention relates to a thread for producing fabric, containing a) 5 to 90 wt. % of melamine fibres, b) 5 to 90 wt. % of natural fibres, and c) 0.1 to 30 wt. % of polyamide fibres consisting of polyamide 66, polyamide 6 or mixtures thereof.

Abstract: The invention relates to a continuous process for preparing aminoplastics and/or phenolics, in which a precondensate solution is prepared in a first extruder (14), the precondensate solution is continuously fed, with addition of additives, to a second extruder (20) with partial filling in the feed section (E) and devolatilization section (G), devolatilized in the second extruder (20) and then formed to give a molding composition or an end product. The process is particularly suitable for preparing melamine resins, in particular melamine-formaldehyde resins, as well as for preparing urea-formaldehyde resins.

Abstract: The disclosure is directed to a method of using melamine resin fibers, to an insulating material comprising

Abstract: The present invention relates to flame-proof fabrics based on melamine resin fibers, fire-safety blankets and clothing manufactured therefrom and their use for extinguishing fires and for protecting persons and objects from fire, combustion products and/or extinguishants.

Abstract: The present invention relates to flameproof fabrics based on melarnine resin fibres, fireproof blankets and clothing made therewith and their use for extinguishing fires and protecting people and objects from fire, combustion products and/or extinguishing agents.

Abstract: A process for producing continuous filament fibers from a hydroxy- or amino-alkyl-melamine modified melamine-formaldehyde condensation product comprises filtering the highly concentrated aqueous solution of the melamine-formaldehyde condensation product, forcing the filtrate through a spinneret, drying the extruded filaments in a drying shaft by means of hot air, and treating the dried filaments in a tempering oven at temperatures which rise gradually to a maximum temperature of from 160 to 250.degree. C. to cure the precondensate.

Abstract: A fiber blend of(a) from 10 to 90 parts by weight of metal-coated melamine resin fibers or a blend of uncoated and metal-coated resin fibers and(b) from 90 to 10 parts by weight of natural fibers and wovens, nonwovens, yarns, tapes or moldings formed from the blend.

Abstract: The disclosure is directed to fiber blends of melamine resin fibers and aramid fibers.

Abstract: A process for producing fibers by spinning a resin by a centrifugal spinning process comprises supplying a resin solution having a viscosity from 50 to 200 Pa.s at the spinning temperature to a whirler plate and ensuring that the resin solution is under a sufficient pressure to completely fill the nozzles of the whirler plate as the fibers are being spun. The process is particularly suitable for producing fibers based on amino resins. In the apparatus the supply line for the resin is preferably located within the driveshaft.

Abstract: A thermally stable electrical insulating material comprises melamine resin fibers and a polymer fibril binder with or without a synthetic resin powder and mineral fillers.

Abstract: A condensation polymer, obtainable by condensation of a mixture containing, as chief components,(A) from 90 to 99.9% molar of a mixture substantially consisting of(a) from 30 to 99% molar of melamine and(b) from 1 to 70% molar of a substituted melamine of the general formula I ##STR1## in which X, X', and X" are selected from the group consisting of --NH.sub.2, --NHR, and --NRR', and only one or two of X, X', and X" denote(s) --NH.sub.2, and R and R' are selected from the group consisting of hydroxy-C.sub.2 -C.sub.10 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl-(oxa-C.sub.2 -C.sub.4 -alkyl).sub.n, where n is an integer from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures of melamines I, and(B) from 0.1 to 10% molar, based on (A) and (B), of unsubstituted phenols or phenols substituted by radicals selected from the group consisting of C.sub.1 -C.sub.9 -alkyl and hydroxy, or of C.sub.1 -C.sub.

Abstract: Moldings, in particular foams and fibers, based on melamine/formaldehyde condensation products, in which from 0.1 to 70 mol % of the melamine have been replaced by melamine substituted by from 1 to 3 hydroxyoxaalkyl groups of the formula--(CH.sub.2 --CH.sub.2 --O).sub.n --CH.sub.2 --CH.sub.2 --OHn=1-5)have increased elasticity.

Abstract: Moldings, in particular foams and fibers, based on melamine/formaldehyde condensation products, in which from 0.1 to 70 mol% of the melamine have been replaced by melamine substituted by from 1 to 3 hydroxyoxaalkyl groups of the formula--(CH.sub.2 --CH.sub.2 --O).sub.n --CH.sub.2 --CH.sub.2 --OH (n=1-5)have increased elasticity.

Abstract: The continuous preparation of melamine/formaldehyde precondensate solutions is carried out by a process in which melamine, formaldehyde and, if required, modifiers and/or additives are metered into a continuous mixer, and the homogeneous mixture is passed into a single-screw or twin-screw extruder, condensed at elevated temperatures, cooled and extruded.

Abstract: A sheet-like packing material consisting ofA. from 2 to 90% by weight of melamine resin or phenol resin fibers and/or fibrids,B. from 5 to 90% by weight of finely divided inorganic fillers, preferably cement, andC. from 2 to 40% by weight of organic binders, preferably rubber, with or withoutD. from 0.1 to 50% by weight of thermoplastic fibrids, the percentages summing to 100,possesses low gas permeability, high compressive creep strength and advantageous compressibility, resilience and swelling behavior.

Abstract: Manufacture of fibrids from polymers or copolymers containing fluorine in a fluid precipitation medium under the action of shearing forces.

Abstract: A process for the manufacture of thermoplastics fibrids, in which a solution of the thermoplastics material is fed to an impulse exchange chamber, where it is cooled so as to cause precipitation of the thermoplastics material, while it is subjected to a field of turbulent shear forces caused by the introduction of a gaseous or liquid medium into the said impulse exchange chamber.

Abstract: The manufacture of paper-like and textile-like sheet materials by the use of fibrids which have been obtained by dissolving poly(amide-imide) resins in an organic solvent, mixing the resulting solution with a liquid which is a non-solvent for the polymer and introducing the resulting solution into a liquid precipitation medium while exposing it to shearing forces.The present invention relates to the use, for the manufacture of paper-like and textile-like sheet materials, of novel fibrids, which have been obtained by dissolving poly(amide-imide) resins in an organic solvent, mixing the resulting solution with a liquid which is a non-solvent for the polymer and introducing the resulting solution into a liquid precipitation medium while exposing it to shearing forces.