ACOUSTIC LAMINATED GLAZING, ACOUSTIC INTERLAYER AND METHOD FOR SELECTING THE INTERLAYER FOR OPTIMAL ACOUSTIC DAMPING

The invention concerns a laminated glazing (2) comprising a viscoelastic plastic interlayer (3) including at least two damping films (30, 31) each having a loss factor tan Î´ higher than 0,6 and a shear modulus G' less than 2.107 Pa over two respective temperature ranges tA and tB. The inventio...

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Hauptverfasser:	JEAN-PHILIPPE BOURE, JULIEN CHARLIER, MARC REHFELD, ELOI GAUDRY
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MINERAL OR SLAG WOOL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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creator	JEAN-PHILIPPE BOURE JULIEN CHARLIER MARC REHFELD ELOI GAUDRY
description	The invention concerns a laminated glazing (2) comprising a viscoelastic plastic interlayer (3) including at least two damping films (30, 31) each having a loss factor tan Î´ higher than 0,6 and a shear modulus G' less than 2.107 Pa over two respective temperature ranges tA and tB. The invention is characterized in that the film which has at frequency 200 Hz the highest loss factor tan Î´ over a given temperature range included in the temperature ranges tA or tB, has a shear modulus equivalent to G'eq less than the shear modulus (moduli) equivalent to the other film(s) with G' eq = G ' e t ot/e where G' is the shear modulus of the material constituting the film, e is the thickness of the film and e tot is the total thickness of the interlayer. La invención se refiere a un encristalado laminado (2) que comprende un inserto plástico viscoelástico (3) que incluye al menos dos películas de amortiguamiento (30, 31), cada una tiene un factor de pérdida tand mayor a 0.6 y un módulo de corte G´ menor a 2x107 Pa en dos intervalos de temperatura respectivos tA y tB. La invención está caracterizada porque la película que tiene a la frecuencia de 200 Hz, el factor de pérdida tand más alto en un intervalo de temperatura dado incluido en los intervalos de temperatura tA o tB, tiene un módulo de corte equivalente a G´eq menor al módulo (módulos) de corte equivalente(s) a la otra película o películas con (ver fórmula) en donde G´ es el módulo de corte del material que constituye la película, e es el espesor de la película y etot el espesor total del inserto.
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The invention is characterized in that the film which has at frequency 200 Hz the highest loss factor tan Î´ over a given temperature range included in the temperature ranges tA or tB, has a shear modulus equivalent to G'eq less than the shear modulus (moduli) equivalent to the other film(s) with G' eq = G ' e t ot/e where G' is the shear modulus of the material constituting the film, e is the thickness of the film and e tot is the total thickness of the interlayer. La invención se refiere a un encristalado laminado (2) que comprende un inserto plástico viscoelástico (3) que incluye al menos dos películas de amortiguamiento (30, 31), cada una tiene un factor de pérdida tand mayor a 0.6 y un módulo de corte G´ menor a 2x107 Pa en dos intervalos de temperatura respectivos tA y tB. La invención está caracterizada porque la película que tiene a la frecuencia de 200 Hz, el factor de pérdida tand más alto en un intervalo de temperatura dado incluido en los intervalos de temperatura tA o tB, tiene un módulo de corte equivalente a G´eq menor al módulo (módulos) de corte equivalente(s) a la otra película o películas con (ver fórmula) en donde G´ es el módulo de corte del material que constituye la película, e es el espesor de la película y etot el espesor total del inserto.</description><language>eng ; spa</language><subject>ACOUSTICS ; ACOUSTICS NOT OTHERWISE PROVIDED FOR ; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; GLASS ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; METALLURGY ; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL ; MINERAL OR SLAG WOOL ; MUSICAL INSTRUMENTS ; PERFORMING OPERATIONS ; PHYSICS ; SOUND-PRODUCING DEVICES ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS ; TRANSPORTING ; VEHICLES IN GENERAL ; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR</subject><creationdate>2008</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20081124&DB=EPODOC&CC=MX&NR=2008014332A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20081124&DB=EPODOC&CC=MX&NR=2008014332A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JEAN-PHILIPPE BOURE</creatorcontrib><creatorcontrib>JULIEN CHARLIER</creatorcontrib><creatorcontrib>MARC REHFELD</creatorcontrib><creatorcontrib>ELOI GAUDRY</creatorcontrib><title>ACOUSTIC LAMINATED GLAZING, ACOUSTIC INTERLAYER AND METHOD FOR SELECTING THE INTERLAYER FOR OPTIMAL ACOUSTIC DAMPING</title><description>The invention concerns a laminated glazing (2) comprising a viscoelastic plastic interlayer (3) including at least two damping films (30, 31) each having a loss factor tan Î´ higher than 0,6 and a shear modulus G' less than 2.107 Pa over two respective temperature ranges tA and tB. The invention is characterized in that the film which has at frequency 200 Hz the highest loss factor tan Î´ over a given temperature range included in the temperature ranges tA or tB, has a shear modulus equivalent to G'eq less than the shear modulus (moduli) equivalent to the other film(s) with G' eq = G ' e t ot/e where G' is the shear modulus of the material constituting the film, e is the thickness of the film and e tot is the total thickness of the interlayer. La invención se refiere a un encristalado laminado (2) que comprende un inserto plástico viscoelástico (3) que incluye al menos dos películas de amortiguamiento (30, 31), cada una tiene un factor de pérdida tand mayor a 0.6 y un módulo de corte G´ menor a 2x107 Pa en dos intervalos de temperatura respectivos tA y tB. 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The invention is characterized in that the film which has at frequency 200 Hz the highest loss factor tan Î´ over a given temperature range included in the temperature ranges tA or tB, has a shear modulus equivalent to G'eq less than the shear modulus (moduli) equivalent to the other film(s) with G' eq = G ' e t ot/e where G' is the shear modulus of the material constituting the film, e is the thickness of the film and e tot is the total thickness of the interlayer. La invención se refiere a un encristalado laminado (2) que comprende un inserto plástico viscoelástico (3) que incluye al menos dos películas de amortiguamiento (30, 31), cada una tiene un factor de pérdida tand mayor a 0.6 y un módulo de corte G´ menor a 2x107 Pa en dos intervalos de temperatura respectivos tA y tB. La invención está caracterizada porque la película que tiene a la frecuencia de 200 Hz, el factor de pérdida tand más alto en un intervalo de temperatura dado incluido en los intervalos de temperatura tA o tB, tiene un módulo de corte equivalente a G´eq menor al módulo (módulos) de corte equivalente(s) a la otra película o películas con (ver fórmula) en donde G´ es el módulo de corte del material que constituye la película, e es el espesor de la película y etot el espesor total del inserto.</abstract><oa>free_for_read</oa></addata></record>
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subjects	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MINERAL OR SLAG WOOL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
title	ACOUSTIC LAMINATED GLAZING, ACOUSTIC INTERLAYER AND METHOD FOR SELECTING THE INTERLAYER FOR OPTIMAL ACOUSTIC DAMPING
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