US 5,246,782 AGranted

Laminates of polymers having perfluorocyclobutane rings and polymers containing perfluorocyclobutane rings

AssigneeThe Dow Chemical Company

InventorsAlvin P. Kennedy, Larry D. Bratton, Zdravko Jezie, Eckel R. Lane, Donald J. Perettie, W. Frank Richey, David A. Babb, Katherine S. Clement

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Abstract

A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.

Claims21

Dependent claims

An electronic device comprising a laminate of having at least two layers at least one of which hereinafter referred to as the first or polymer layer, comprises a polymer having more than one perfluorocyclobutane group, a backbone comprising perfluorocyclobutane groups, linking structures and hydrocarbon containing groups;

and is formed from at least one monomer having a structure represented by Formula I or II:
##STR2## wherein R represents an unsubstituted or inertly substituted group;
each X is independently a bond or any group which links R and a perfluorovinyl group;
m+1 is the number of --X--CF.dbd.CF.sub.2 units;
n and n' are the number of G and G' groups, respectively;
and G and G' independently represent any reactive functional groups or any groups convertible into reactive functional groups
and at least one outer layer, hereinafter referred to as the second layer, having a composition different from the first layer comprising silicon, silicon oxide, barium ferrite, a metal, a semiconductor, a polymer of different composition, ceramic, glass, paper, quartz or mixtures thereof.

4 more elements

Dependencies are inferred from the claim text.