Patent ID: 9096049
Filing Date: 2015-08-04
Classification: B29C,B29K,B29L,B32B,C09K,H05K,Y10T

Abstract:
1. A metal-clad laminate comprising: a thermoplastic liquid crystal polymer film consisting of a thermoplastic liquid crystal polymer capable of forming an optically anisotropic melt phase; and a metallic sheet bonded to at least one surface of the film, wherein a melting point of the thermoplastic liquid crystal polymer is from 283 to 400° C.; the thermoplastic liquid crystal polymer film is an extruded and molecular-oriented film with molecular orientation in a direction transverse to a lengthwise direction of the film; a coefficient of thermal expansion of the thermoplastic liquid crystal polymer film in the transverse direction (αT) in the laminate after thermal compression and heat treatment with the metallic sheet is related to a thermal expansion coefficient (αM) of the metallic sheet according to: a coefficient of thermal expansion of the thermoplastic liquid crystal polymer film in the lengthwise direction (αL) in the laminate after thermal compression and heat treatment with the metallic sheet is related to the thermal expansion coefficient (αM) of the metallic sheet according to: