MULTIPLE LAYER INTERLAYER HAVING IMPROVED OPTICAL AND SOUND INSULATION PROPERTIES

Multilayered interlayers having good acoustic properties comprising a stiff skin layer(s) and a soft core layer(s) are disclosed. The multilayered interlayers comprise: a first polymer layer (skin layer) comprising plasticized poly(vinyl acetal) resin; a second polymer layer (core layer) comprising...

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Bibliographische Detailangaben
Hauptverfasser:	Jun LU, Jeffrey B. HURLBUT, John Joseph D´ERRICO, Weihong CUI, Zhou LI, Curtis Louis SCHILLING, III, Wenjie CHEN
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	Multilayered interlayers having good acoustic properties comprising a stiff skin layer(s) and a soft core layer(s) are disclosed. The multilayered interlayers comprise: a first polymer layer (skin layer) comprising plasticized poly(vinyl acetal) resin; a second polymer layer (core layer) comprising plasticized poly(vinyl acetal) resin; wherein at least one plasticizer is a high refractive index plasticizer. The multilayered interlayers have low mottle and resist mottle formation. Se describen capas intermedias de multicapa que tienen buenas propiedades acústicas que comprenden una capa(s) de película exterior rígida y una capa(s) de núcleo blanda. Las capas intermedias de multicapa comprenden: una primera capa de polímero (capa de película exterior) que comprende resina de poli (vinil acetal) plastificada; una segunda capa de polímero (capa de núcleo) que comprende resina de poli (vinil acetal) plastificada; en donde por lo menos un plastificante es un plastificante de alto índice de refracción. Las capas intermedias de multicapa tienen bajo moteado y resisten la formación de moteado.