VISCOELASTIC PLASTIC INTERLAYER FOR VIBRO-ACOUSTIC DAMPING AND GLAZING COMPRISING SUCH AN INTERLAYER

    公开(公告)号:MY170668A

    公开(公告)日:2019-08-26

    申请号:MYPI2014003266

    申请日:2013-05-16

    Applicant: SAINT GOBAIN

    Abstract: The invention relates to a viscoelastic plastic interlayer intended to be incorporated between two glass sheets to form a laminated glazing with vibro-acoustic damping properties, the interlayer comprising at least one layer (3) made of viscoelastic plastic with vibro-acoustic damping properties, the interlayer being such that the resonant frequency f2 of the second resonance mode of a laminated glazing bar with a surface area of 25 mm x 300 mm composed of two glass sheets each 2.1 mm thick, between which is incorporated the interlayer, determined by measuring the mechanical impedance (MIM) at 20?C according to standard ISO 16940, is between 760 Hz and 1000 Hz and the loss factor n2 of the second resonance mode of the same bar, determined by MIM under the same conditions, is greater than or equal to 0.25. The invention allows a reduction in the thickness of glass sheets without degradation of the vibro-acoustic damping properties. Fig. 1.

    Viscoelastic plastic interlayer for vibroacoustic damping and glazing unit comprising such an interlayer

    公开(公告)号:AU2017200502A1

    公开(公告)日:2017-02-16

    申请号:AU2017200502

    申请日:2017-02-02

    Applicant: SAINT GOBAIN

    Abstract: VISCOELASTIC PLASTIC INTERLAYER FOR VIBRO-ACOUSTIC DAMPING AND GLAZING COMPRISING SUCH AN INTERLAYER Applicant: SAINT-GOBAIN GLASS FRANCE The invention relates to a viscoelastic plastic interlayer intended to be incorporated between two glass sheets to form a laminated glazing with vibro-acoustic damping properties, the interlayer comprising at least one layer (3) made of viscoelastic plastic with vibro-acoustic damping properties, the interlayer being such that the resonant frequency f2 of the second resonance mode of a laminated glazing bar with a surface area of 25 mm x 300 mm composed of two glass sheets each 2.1 mm thick, between which is incorporated the interlayer, determined by measuring the mechanical impedance (MIM) at 200C according to standard ISO 16940, is between 760 Hz and 1000 Hz and the loss factor q2 of the second resonance mode of the same bar, determined by MIM under the same conditions, is greater than or equal to 0.25. The invention allows a reduction in the thickness of glass sheets without degradation of the vibro-acoustic damping properties. Fig. 1 Il1 - 21-16 Known -U- 18-14 Known -i-- 18-14 Invention 1 1 1 2 2 3 4 5 6 8 10 frequency Fig. 1 r )

    ENCRISTALADO LAMINADO ACUSTICO, INSERTO ACUSTICO Y METODO PARA SELECCIONAR EL INSERTO PARA AMORTIGUAMIENTO ACUSTICO OPTIMO.

    公开(公告)号:MX2008014332A

    公开(公告)日:2008-11-24

    申请号:MX2008014332

    申请日:2007-05-10

    Applicant: SAINT GOBAIN

    Abstract: 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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