| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulating material excellent in terms not only of heat resistance, mechanical strengths, toughness, etc. but also of processing precision and thickness precision and favorably usable, while preserving a favorable processability, for heat insulating materials of heat presses or rubber vulcanizing machines or injection molding machines and/or casings of induction furnaces, etc.SOLUTION: The provided heat insulating material is a heat insulating material obtained by hot-pressing and molding, in a laminate state, a plurality of prepregs 3 each provided by impregnating a heat-resistant paper 1 with a thermosetting resin 2 wherein 32-64 mass% of a fibrous matter and 36-68 mass% of the thermosetting resin are included. |
