COMPOSITE WITH COPPER FOIL, MOULDED PRODUCT AND METHOD FOR OBTAINING THEREOF Russian patent published in 2016 - IPC B32B15/08 B32B15/20 C08J5/00 H05K1/02 

FIELD: chemistry.

SUBSTANCE: composite with copper foil, containing copper foil and laminated on it polymer layer, satisfying equation 1: (f₃×t₃)/(f₂×t₂)≥1, wherein t₂ (mm) represents copper foil thickness, f₂ (MPa) represents copper foil tension with relative elongation 4%, t₃ (mm) represents polymer layer thickness, f₃ (MPa) represents polymer layer tension with relative elongation 4%, and equation 2: 1≤33f₁/(F×T), wherein f₁ (N/mm) represents 180° peel strength between copper foil and polymer layer, F (MPa) represents strength of composite with copper foil with relative elongation 30%, and T (mm) represents thickness of composite with copper foil, where chrome oxide layer with amount of applied layer from 5 to 100 mg/dm² is formed on the surface of copper foil, opposite to the one with the applied polymer layer.

EFFECT: composite with copper foil has excellent moulding ability, with simultaneous prevention of copper foil rupture in it, even if deep deformation, different from unidirectional bending, is caused by stamping.

7 cl, 2 dwg, 2 tbl