FLEXIBLE POLYIMIDE MULTILAYER LAMINATE

A multilayer laminate having at least one layer of a no longer formable fully aromatic polyimide and at least one layer of substrate material, the layer of no longer formable polyimide adhering directly on one side to the layer of substrate material with a peel strength of at least 4.0 N.cm. The lay...

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Bibliographic Details
Main Authors KLIMESCH, ERICH, LASHER, JEFFERY D, KUNDINGER, ERNST F, ZENGEL, HANS G
Format Patent
LanguageEnglish
German
Published 10.02.1988
Edition4
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CHEMISTRY
COMPOSITIONS BASED THEREON
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERAL PROCESSES OF COMPOUNDING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PRINTED CIRCUITS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
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Summary:A multilayer laminate having at least one layer of a no longer formable fully aromatic polyimide and at least one layer of substrate material, the layer of no longer formable polyimide adhering directly on one side to the layer of substrate material with a peel strength of at least 4.0 N.cm. The layer of no longer also formable polyimide is also insoluble in phenolic solvents, has a tensile strength of from 100 to 150 N.mm2, a breaking elongation of from 15 to 100%, a dielectric dissipation factor of from 1.5x10-3 at 1 Khz. Additionally, a layer of heat-sealable high-temperature adhesive selected from the class of polyacrylates, polysulfone resins, epoxy resins, fluoropolymer resins, silicone resins or butyl rubbers is joined to that side of the polyimide layer which is remote from the substrate material.
Bibliography:Application Number: EP19860100430