Rohm & Haas Electronic Materials LLC

Dupont Electronics, Inc.

Catherine Mulzer

Christopher D Gilmore

Jaclyn Murphy

Brian Litchfield

Christopher Dennis Simone

Joseph Casey Johnson

Husnu Alp Alidedeoglu

Charles R Kinzie

Hee Jae Yoon

Grzegorz Slawinski

Anastasia L Patterson

Bethany L Seckman

Patricia Gumbley

Cecilia Hall

Benjamin Naab

In a first aspect, a metal-clad polymer film includes a polymer film adhered to a first metal layer. The root-mean-square roughness (S) of the interface between the polymer film and the first metal layer is less than 1 μm. The peel strength between the polymer film and the first metal layer is greater than 5 N/cm after 168 hours of aging at 150° C. when tested for a polymer film having a thickness in the range of from 25 to 75 μm and a first metal layer having a thickness of 18 μm in accordance with IPC-TM-650 test methods. The thickness of the first metal layer is 12 μm or less. The polymer film includes a first thermoplastic polyimide layer. In a second aspect, an electronic device includes the metal-clad polymer film of the first aspect. In a third aspect a process includes for forming a double-sided metal-clad polymer film.

Metal-clad polymer films and electronic devices

Gas sensors are provided. The gas sensors comprise: a substrate; a plurality of electrodes on the substrate; and a polymeric sensing layer on the substrate for adsorbing a gas-phase analyte. The adsorption of the analyte is effective to change a property of the gas sensor that results in a change in an output signal from the gas sensor. The polymeric sensing layer comprises a polymer chosen from substituted or unsubstituted polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising two or more cyclopentadienone groups, or a cured product of the reaction product. The gas sensors and methods of using such sensors find particular applicability in the sensing of gas-phase organic analytes.

Gas sensors and methods of sensing a gas-phase analyte

Disclosed is a coating comprising a polymeric layer, wherein the polymeric layer comprises a reaction product of a first monomer comprising two or more aromatic acetylene groups and a second monomer comprising two or more cyclopentadienone groups, or a cured product of the reaction product. The coating may or may not additionally contain a crosslinker and/or a thermal acid generator. Optical thin films made from the coatings exhibit refractive indices that make them useful as interlayers for matching refractive indices between adjacent layers of display devices; thereby improving device output efficiency.

Tunable refractive index polymers

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Grafton, MA, United States of America

Catherine Mulzer