RU97110281A - FIRE-RESISTANT COVER FROM MILAMINE-FORMALDEHYDE RESIN FIBER - Google Patents

Claims (12)

1. The use of melamine resin fibers for the manufacture of fire-resistant covers. 2. The use of fibers of melamine resin for the manufacture of fire-resistant covers, characterized in that the fibers of melamine resin are obtained by condensation of a mixture containing as components
(A) from 90% to 100 mol%. mixture consisting mainly of
(a) from 30 to 100 mol%. melamine and
(b) from 0 to 10 mol%. substituted melamine of general formula I

wherein X ¹ , X ² and X ³ are selected from the group consisting of —NH ₂ , NR ¹ R ² , and X ¹ , X ² and X ³ do not simultaneously represent —NH ₂ , and R ¹ and R ² are selected from the group containing: hydroxyalkyl with 2-20 carbon atoms, hydroxyalkyl- (oxa-alkyl) _n with 2-4 carbon atoms in the alkyl part and with 2-4 carbon atoms in the oxa-alkyl part, and n = from 1 to 5, and also aminoalkyl with 2-12 carbon atoms or a mixture of melamines of the formula I, and
(B) from 0 to 10 mol.% Based on (A) and (B) unsubstituted phenol or phenols, substituted by residues from the group: alkyl with 1-9 carbon atoms and hydroxyl, alkanes with 1-4 carbon atoms, substituted by two or three phenolic groups, di- (hydroxyphenyl) -sulfones or mixtures of these phenols with formaldehyde or compounds that release formaldehyde, while the molar ratio of melamines to formaldehyde is in the range from 1: 1.15 to 1: 4.5.  3. The use of from 5 to 95 wt.% Fibers of melamine resin and from 95 to 5 wt.% Of fire-resistant fibers to obtain fire-resistant covers. 4. Fire resistant covers containing
(a) from 5 to 95 wt.% fibers of melamine resin,
(b) from 95 to 5% by weight of flame retardant fibers selected from a group comprising fiberglass, flame resistant wool, fire resistant viscose and aramid fibers, and
(c) from 0 to 25% by weight of fillers,
provided that if only aramid fibers are used as component (b), the amount of component (c) is not equal to 0.  5. Fire-resistant blankets according to claim 4, characterized in that the aramid fibers consist of a polycondensation product of iso- or terephthalic acid with meta- or para-phenylenediamine.  6. A method of manufacturing fire resistant coatings in a known manner, characterized in that for the manufacture of melamine resin fibers are used.  7. The method of extinguishing fires and burning objects, characterized in that they use fire-resistant blankets according to claim 4 or 5 or obtained according to claim 6.  8. The way to protect objects from fire, characterized in that the protected objects are covered with fire-resistant bedspreads according to claim 4 or 5 or obtained under item 6.  9. The use of fire-resistant blankets containing melamine resin fibers for extinguishing fires and burning objects, characterized in that the place of fire or burning objects are covered with fire-resistant covers.  10. The use of fire-resistant blankets containing melamine resin fibers to protect objects from fire, characterized in that the objects are covered with fire-resistant blankets.  11. Fire-resistant blankets according to claim. 4, characterized in that they use melamine resin fibers coated with a layer of aluminum.  12. The use of paragraphs. 1-3, characterized in that use melamine resin fibers coated with a layer of aluminum.