FLEXIBLE METAL CLAD LAMINATES AND METHODS OF PREPARATION THEREOF
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United States of America Patent
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Feb 29, 2024
app pub date -
Sep 18, 2023
filing date -
Dec 23, 2020
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Abstract
This disclosure relates to a film layer for use in flexible metal clad laminates. The film layer comprises a thermosetting composition comprising: a copolymer of (a) a diisoalkenylarene (DIAEA) and (b) a divinylarene (DVA) containing a mixture of m-divinylarene and p-divinylarene, in a mole ratio of (a) to (b) of 15:1 to 1:15; a second polymer; a filler and optional additives. Flexible metal clad laminates made with the film further comprises a metal foil bonded to the surface of the film. The thermosetting composition containing the DIAEA-DVA copolymer provides improved thermal stability at high temperature, excellent processability, and electrical properties, e.g., Dk and Df.
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