| 摘要 |
PROBLEM TO BE SOLVED: To provide biodegradable plastics, for which it is desirable that a mold member is brought to a biodegradable state from the problem of a waste and which have a small strength and have physical properties as the substitute of conventional general-purpose plastics. SOLUTION: The mold member for forming an irregular pattern is used for a construction method in which the mold member is stuck on a section, to which the recessed section of a surface to be constructed must be formed, a coating material is applied, the coating material is cured and the mold member is removed. A main body is composed of the foam of a biodegradable cross-linking type polyester cross-linked by the emission of an ionizing radiation, and constituted of a material mainly comprising a substance having an expansion ratio of 1.5 to 25 times. COPYRIGHT: (C)2005,JPO&NCIPI
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