Have heat-swellable fire resisting fire resisting piece attached to it with gap and product in heat-swellable fire resisting fire resisting piece

摘要

PROBLEM TO BE SOLVED: To provide a thermally expandable fire resisting sheet that is reduced in weight and offers a desired level of fire resistance.SOLUTION: A thermally expandable fire resisting sheet comprises a fire-resistant resin composition having thermally expandable graphite and has voids therein.SELECTED DRAWING: None