| 摘要 |
PROBLEM TO BE SOLVED: To provide a high polymer laminated body having good dimensional stability combined with thermal fusibility, and good process passing performance (dimensional accuracy, die contamination due to chips, or the like in stamping) after a thermal fusing process. SOLUTION: The high polymer laminated body includes a high polymer layer 1 and a high polymer layer 2, and a high polymer 3 composing the high polymer layer 1 and a high polymer 4 composing the high polymer layer 2 satisfy characteristics of A and B. A being that a melting point (Tm3) of the high polymer 3 is 40-150°C, and a melting point (Tm3) of the high polymer 4 is (Tm3+100)°C. B being that a crystal fusion heating value of the high polymer 3 satisfies characteristics ofαandβ.αbeing that a crystal fusion heating value after high polymer structure stability is 6-30J/g.βbeing that an equation wherein (a crystal fusion heating value after 48 hours of heat treatment)>(a crystal fusion heating value after heat treatment)×0.8 is satisfied when heat treatment of 48 hours and 168 hours have been carried out in a temperature obtained by an equation (Tm3×0.65)°C from right after high polymer film formation. COPYRIGHT: (C)2009,JPO&INPIT
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