| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material capable of enhancing heat insulating performance by a curved surface shape. <P>SOLUTION: The vacuum heat insulating material in a curved surface shape includes a core material made of a plurality of laminated fiber sheets, a sheet material covering the core material tightly with the inside decompressed, and slip sheets inserted between the fiber sheets, wherein the fiber sheets are separated in the plane direction to form a plurality of separate cores, and a shrink space surrounded by the separate cores and slip sheets or the sheath material is provided at the fiber sheets in at least part thereof. Thus, the difference in the circumferential length caused between the outside and inside when the vacuum heat insulation is processed into a roll shape is reduced, a heat insulating material free from wrinkles can be made, and the performance of the vacuum heat insulation is enhanced. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
