| 摘要 |
PROBLEM TO BE SOLVED: To provide a crosslinked composition originated from living things and a manufacturing method for the same, and the structure thereof, and a manufacturing method for a printed circuit board originated from the living things using this composition. SOLUTION: A material originated from living things such as lignin, cereal oil, a wood resin, tannin, polysaccharides, and a mixture of these, etc., is cross- linked preferably using heat, a cross-linking agent and an initiator. The material thus produced has a property suitable for producing a printed circuit board. A cloth produced from glass fibers or from living things is impregnated with a mixture of the material originated from living things, the cross-linking agent, and the initiator, and then processed by a conventional method of obtain the printed circuit board.
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