Plastic laminates with thermal expansion tailored to suit application - have all layers with rod-shaped molecules and arranged in pairs with their molecules orientated in planned pattern as required

In a plastic laminate 2n layers of liquid crystal polymer with rod-shaped molecules are laid up together in n pairs; at least the preponderance of the rod molecules in the individual layers are orientation lines in each individual layer are at a set angle to each other and preferably at the same (or...

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Bibliographische Detailangaben
Hauptverfasser:	BOHEIM, MANFRED., 7900 ULM, DE, DOLP, ROBERT. , 7900 WIBLINGEN, DE, HAGER, WILHELM., 7959 BURGRIEDEN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS SEMICONDUCTOR DEVICES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	In a plastic laminate 2n layers of liquid crystal polymer with rod-shaped molecules are laid up together in n pairs; at least the preponderance of the rod molecules in the individual layers are orientation lines in each individual layer are at a set angle to each other and preferably at the same (or nearly) angle for all the pairs of layers. ADVANTAGE - The laminate has a coefficient of thermal expansion which can be adjusted individually to a set level. It is partic. suitable for use as casings for integrated circuits. The prodn. process is inexpensive.