METHOD FOR PRODUCING LAMINATE AND HEATING ELEMENT, AND DEFROSTER
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United States of America
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Apr 25, 2024
app pub date -
Feb 8, 2022
filing date -
Feb 8, 2022
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Abstract
Provided is a method for manufacturing a laminate that is excellent in adhesion between the copper foil and the resin film while using a polyvinyl acetal resin having low reactivity with the copper foil. This method includes the steps of providing a copper foil having on at least one side a treated surface on which an amount of metal components is 30 atomic % or more and 40 atomic % or less, and attaching or forming a polyvinyl acetal resin film on the treated surface of the copper foil to form a laminate. The amount of metal components is a proportion of Cr, Ni, Cu, Zn, Mo, Co, W, and Fe in a total amount of N, O, Si, P, S, Cl, Cr, Ni, Cu, Zn, Mo, Co, W, and Fe when the treated surface is subjected to elemental analysis by X-ray photoelectron spectroscopy (XPS).
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