초록 ▼

The disclosure relates to flexible heat expanding, fire retardant composite materials comprising an intumescent component in granular form, an organic binder component such as an elastomer, an organic char-forming component and fillers such as clay, silica, synthetic organic staple fibers or inorgan

The disclosure relates to flexible heat expanding, fire retardant composite materials comprising an intumescent component in granular form, an organic binder component such as an elastomer, an organic char-forming component and fillers such as clay, silica, synthetic organic staple fibers or inorganic fiberglass or ceramic fibers. These composites, when subjected to heat at about 110°C., can intumesce up to ten times their original volume.

대표청구항 ▼

Dense, solid, flexible, heat expandable, fire retardant composite material capable of subsisting substantially indefinitely in sheet or putty form and having increased thermal insulating and sealing efficiency when exposed to temperatures above about 110°C., and capable of expanding at least up to t

Dense, solid, flexible, heat expandable, fire retardant composite material capable of subsisting substantially indefinitely in sheet or putty form and having increased thermal insulating and sealing efficiency when exposed to temperatures above about 110°C., and capable of expanding at least up to two times its original volume consisting essentially of about 15 to 80 weight percent of sodium silicate in granular form as the intumescent component, the individual sodium silicate granules each enlarging solely upon the application of heat, about 15 to 40 weight percent of a polychloroprene binder component, up to about 40 weight percent of a phenol-formaldehyde organic char-forming resin and up to about 50 weight percent filler comprising up to about 20 weight percent active filler and up to about 40 weight percent inactive filler.