Process for producing heat-resistant flexible laminate and heat-resistant flexible laminate produced thereby
View Patent ↗A method for manufacturing a heat resistant flexible laminate effectively enabling avoidance of not only visual defects but occurrence of dimensional changes, and a heat resistant flexible laminate are provided. In a process for laminating a heat resistant adhesive material and a metallic foil by thermal lamination, a film-like protective material is disposed between a pressurized surface and the metallic foil at the time of thermal lamination. At this time, coefficients of linear expansion in a temperature range of 200 degree C. to 300 degree C. of the heat resistant adhesive material and the protective material are within a range of a coefficient of linear expansion of the metallic foil ±10 ppm/degrees C. Thereby, occurrence of visual defects is not only effectively avoidable, but excellent dimensional change after etching may be exhibited.
1. A method for manufacturing a heat resistant flexible laminate comprising a step of laminating
a metallic foil having a coefficients of linear expansion defined as ● 0 ppm/degree C. in a temperature range of 200 degrees C. to 300 degrees C. and a heat resistant adhesive material having a coefficient of linear expansion within a range of ● 0 ±10
by thermal lamination in a temperature range of not less than 200 degrees C.,
wherein a film-like protective material having a coefficient of linear expansion within a range of ● 0 ±10 is disposed on the outside of the metallic foil between a pressurized surface and the metallic foil at the time of the thermal lamination, and
wherein the metallic foil is a rolled copper foil or an electrolytic copper foil.
2. The method for manufacturing a heat resistant flexible laminate according to claim 1 ,
wherein the film-like protective material is a heat resistant plastic film.
3. The method for manufacturing a heat resistant flexible laminate comprising a step of laminating
a metallic foil having a coefficient of linear expansion defines as ● 0 ±10 ppm/degree C. in a temperature range of 200 degrees C. to 300 degrees C. and a heat resistant adhesive material having a coefficient of linear expansion within a range of ● 0 ±10
by thermal lamination in a temperature range of not less than 200 degrees C.,
wherein a reusable film-like protective material having a coefficient of linear expansion within a range of ● 0 ±10 is detachably secured to the outside of the metallic foil between a pressurized surface and the metallic foil at the time of thermal lamination, such that the protective material can be removed after lamination and re-used, and
wherein the metallic foil is a rolled copper foil or an electrolytic copper foil.