MELAMINE PYROPHOSPHATE AND INTUMESCENT COMPOSITIONS CONTAINING THE SAME

1,270,624. Intumescent coatings. AMERICAN CYANAMID CO. 18 Feb., 1970 [17 April, 1969], No. 7875/70. Heading B2E. [Also in Divisions C2 and C3] Intumescent fire retardant coatings are applied to substrates, e.g. wood, glass, plastics, fabrics or metal, by spraying, painting or dipping with a composit...

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Hauptverfasser:	BRUCE CHARLES TREDINNICK, ROBERT GLENN FESSLER
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES HETEROCYCLIC COMPOUNDS INKS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Zusammenfassung:	1,270,624. Intumescent coatings. AMERICAN CYANAMID CO. 18 Feb., 1970 [17 April, 1969], No. 7875/70. Heading B2E. [Also in Divisions C2 and C3] Intumescent fire retardant coatings are applied to substrates, e.g. wood, glass, plastics, fabrics or metal, by spraying, painting or dipping with a composition containing a synthetic resin film former or binder and, as the intumescent agent, a novel crystalline form of melamine pyrophosphate characterised by (i) an X-ray diffraction pattern having a maximum intensity peak at 3.25Š and a peak at 10.64Š, (ii) an IR pattern having a broad absorption band at 710-740cm-1 and (iii) on being heating, losing weight substantially continuously with rising temperature between 300-350‹C. In Example VIII Douglas fir is coated with an aqueous latex paint based on vinyl acetate copolymer.