Patent ID: 6730381
Filing Date: 2004-05-04
Classification: C09K,Y10S,Y10T

Abstract:
A coextruded, intumescent fire-protection strip jacketed on three sides and composed ofa) an intumescent composition made from a1) a thermoplastic elastomer with a processing temperature of not more than 250Â° C. selected from the group consisting of block copolymers and uncrosslinked thermoplastic polyolefins, a2) sulfric-acid-treated graphite, a3) flame retardant, and a4) an inorganic additive which forms an enamel or forms a ceramic, and b) a three-sided jacket, optionally in association with a chambered profile, made from b1) a thermoplastic elastomer with a processing temperature of not more than 250Â° C. selected from the group consisting of block copolymers and uncrosslinked thermoplastic polyolefins, b2) flame retardant, and, optionally, b3) a color pigment, and obtained by coextrusion of a) and b).