前苏联专利SU871742A3 Sound-insulating coating

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引用文献

法律状态

优先权

专利摘要:
The invention relates to a sound damping material in the shape of foils or strips comprising open-pored foam material impregnated with different quantities of a viscoelastic compound, which is intended for application to attenuated structures, particularly automobile body panels.
公开号:SU871742A3
申请号:SU782717199
申请日:1978-12-15
公开日:1981-10-07
发明作者:Шварц Гервиг；Бурде Ганс-Юрген；Минет Гюнтер
申请人:Терозон Гмбх (Фирма)；
IPC主号:

专利说明:

The present invention relates to sound insulating coatings, in particular, to open-cell foams treated with an elastic mass. The sound insulation material from an open-cell foam plastic is applied to which a heavy plastic film is applied. C The disadvantage is that the heavy plastic film has the same layer thickness and the same weight per unit area, so that the use of sound insulation material for different sources of sound of the insulated object is impossible. Closest to the invention is a soundproof coating for the protective casing of machines and mechanisms including an openly porous foam coated on its surface with an elastic insulating mass so that at least the pore walls are covered with an insulating mass t J This coating provides good sound insulation at low frequencies However, sound insulation at higher frequencies is insufficient. The aim of the invention is to improve the sound insulation properties of housings operating with accelerations from 0.01 to 4 g. This is achieved by the fact that in the sound insulation coating of the protective casing of machines and mechanisms, including an open-cell foam with an acoustic elastic mass applied to its surface, the mass is distributed over the surface of the open-cell foam in 1 mm thickness of the latter from the calculation of 0.01-0.1 kg / m in areas of the casing exposed to acceleration of 0.1-0.5 g, 0.1-0.2 kg / m in areas of the casing exposed to acceleration of 0.5-1.5 g, 0.2-0.5 kg / m in casing zones subject to acceleration of 1.5-4 g and free of insulating mass in casing areas subject to acceleration of 0.01-0.1 d. Suitable and cell opening foams are polyurethane foams or polyvinyl chloride. In addition, bonded particle foams may be used, the latter may consist of the same or different material and accordingly have the same or different physical properties.
The waste produced during the manufacture or processing of the proposed sound insulation material is granulated and processed into a combined foam.
To impregnate the foam, i.e. for applying an insulating mass, zcoelastic feedstocks are used, for example, polyolefins, organic resins or waxes, which preferably contain inorganic fillers such as chalk, shale flour barite, and the like. In accordance with the acoustic requirement, the impregnating composition is chosen so that at certain temperatures and / or frequencies of the mechanical noise of the insulated structure it provides the highest possible damping.
The impregnated composition can be applied unevenly across the thickness of the foam.
Acoustic adjustment of the material can be achieved by using foam with different thicknesses, for example, between 2 and 25 mm. Such a foam can be easily made by cutting out of a blocky foam material and securing it to the surface to be coated.
FIG. 1 shows a layer of foam, coatings in places with a film of impregnating composition, top view; in fig. 2 - sound insulation coating, section.
The sound-insulating coating of the protective casing of machines and mechanisms includes an open-cell foam with a zoelastic mass deposited on its surface.
The image in FIG. 1 foam layer in zones 1 is free of insulating mass. In zones 2,, 2, one layer of insulating mass film is applied. In zones 3, 3, the damping is increased by using a double layer, respectively, a double amount of insulating mass. In zone 4, a triple layer of insulating mass film is applied according to a very high damping. By heating the film melts and penetrates into the foam, TeiK that after cooling it can be used as a sound insulating material.
In zone 5, the foam layer is impregnated with 1.2 kg / m of insulating mass, and in zone 6 - 2.0 kg / m, so that the material in these zones has a correspondingly high damping, and in impregnated zones it provides optimal sound insulation.
The proposed sound insulation material is made in such a way that 10-100%, preferably 10-80%, of the surface of the foam is provided with the above-mentioned various amounts of insulating mass.
The following example illustrates the present invention.
For the manufacture of foam material for soundproofing the surface of the bottom of the car, measurements of the vibrations J of the car are carried out. To do this, the bottom surface inside the car is free of all the skins and 60 piezoelectric sensors are applied to the metal surface at a distance of 100 mm,
by means of which the amplitudes and frequencies of oscillations at individual measuring points in the working state are determined. For the manufacture of sound insulating material is polyurethane foam thickness of 10 mm, volume
5, the weight of which is 25 kg / m. The insulating elastic foil in the form of foil consists of the following components, wt.%: Ethylene copolymer and vinyl acetate 25 (content of vinyl acetate and 27), wax 15, hydrocarbon resin 20 (melt resin) and chalk 40 (as filler).
Mass treatment of the foam takes place according to the measured on the top5 of the bottom to be carried by means of piezoelectric acceleration sensors, and in areas of the foam that are accelerated from 0.01 to 0.1 d, no insulating mass is applied; in zones
Q, which are accelerated to 0.5 d, are applied to 1 kg / m of insulating mass; in zones that are subject to acceleration of 0.5-1.5 d, 2 kg / m of insulating mass are applied and in zones that
- 1.5-4 d are subjected to acceleration, 3 kg / m of insulating mass are applied. After applying the insulating mass in the form of a film, the foam is passed between the heating rolls having a higher temperature than the softening temperature of the insulating mass.
the sound insulation part obtained in this way is acoustically precisely matched to the sound sources of the insulated bottom sheet
5 of the installation condition and thus ensures optimum sound insulation.

权利要求:
Claims (1)
[1]
1. For Germany (1940838, C 08 L 23/08, 1971).
2, Application of Germany №2526325,
B 60 R 13/08, 1976 (prototype)

类似技术:

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同族专利:

公开号 | 公开日

DE2756622B1|1979-02-01|

GB2012190A|1979-07-25|

JPS5492201A|1979-07-21|

IT1100649B|1985-09-28|

CA1119897A|1982-03-16|

US4374172A|1983-02-15|

IT7830944D0|1978-12-18|

FR2415088B1|1982-11-05|

JPS623438B2|1987-01-24|

GB2012190B|1982-08-04|

DE2756622C2|1979-09-20|

FR2415088A1|1979-08-17|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US2955056A|1959-02-27|1960-10-04|Du Pont|Polyurethane foams coated with a polyurethane elastomer|

US3070476A|1960-07-22|1962-12-25|Hicks & Otis Prints Inc|Ornamentation of resilient absorbent materials|

US3471419A|1965-09-29|1969-10-07|Joseph Ronald Ehrlich|Pore-filled open-cell foam|

US3627622A|1967-09-29|1971-12-14|Dow Chemical Co|Partial resin coated foamed resinous articles|

US3542638A|1968-05-07|1970-11-24|Gaf Corp|Acoustical surface covering|

CH574807A5|1971-04-02|1976-04-30|Pohl Gerhard|

AU505555B2|1973-02-20|1979-11-22|Takeji Saito|Improving weldability of synthetic foam material|

US4125664A|1974-07-13|1978-11-14|Herbert Giesemann|Shaped articles of foam plastics|

US3949137A|1974-09-20|1976-04-06|Akrongold Harold S|Gel-impregnated sponge|

US3944704A|1974-10-31|1976-03-16|The John Z. Delorean Corporation|Composite structure|

FR2300105B1|1975-02-05|1978-02-03|Roth Jacques|

US4082703A|1975-04-07|1978-04-04|Union Carbide Corporation|Polyurethane prepolymers, rebonded polyurethane foam and methods of forming the same|

JPS5411691B2|1975-11-27|1979-05-17|

US4061820A|1976-04-07|1977-12-06|Oxford Chemicals, Incorporated|Self-adhering material|

US4070520A|1976-09-03|1978-01-24|Scott Paper Company|Fabric softener composition|

US4034137A|1976-12-06|1977-07-05|John Z. Delorean Corporation|Composite sheet structure and method for manufacturing same|

CA1018018A|1976-12-29|1977-09-27|Joseph D. Schachter|Multicolored compressible foam article and method of manufacture|

US4051296A|1977-03-14|1977-09-27|International Harvester Company|Silicone rubber mold|

US4079170A|1977-07-08|1978-03-14|Cluff Carwin B|Wax saturated expanded polystyrene and method of manufacture|DE2800914C2|1978-01-10|1983-12-29|Dr. Alois Stankiewicz Schallschluck GmbH & Co KG, 3101 Adelheidsdorf|Sound-insulating multilayer wall cladding for the walls of vehicles or machines|

DE2930966C2|1979-07-31|1983-12-22|Teroson Gmbh, 6900 Heidelberg|Process for the production of a sound-absorbing molded part|

JPS6323144Y2|1982-01-22|1988-06-24|

DE3340260A1|1983-11-08|1985-05-23|Dura Tufting Gmbh, 6400 Fulda|TEXTILE SURFACE COVERING FOR NOISED ROOMS AND METHOD FOR THEIR PRODUCTION|

US4808469A|1985-05-09|1989-02-28|Maurice Hiles|Energy absorbing polyurethane composite article|

GB8619944D0|1986-08-15|1986-09-24|Trifoam Products Ltd|Coating for plastics foam body|

GB8811033D0|1988-05-10|1988-06-15|A Foam Co Ltd|Foam composite & method of forming same|

CH678306A5|1989-12-29|1991-08-30|Matec Holding|

DE4129666C2|1991-09-06|1996-12-12|Stankiewicz Gmbh|Process for the production of a viscoelastic damping foam with an adhesive surface|

FR2728715B1|1994-12-26|1997-01-31|Alsthom Cge Alcatel|ACOUSTIC WAVE ABSORBING MATERIAL|

US5673437A|1995-05-08|1997-10-07|Chase Ergonomics Inc.|Vibration attenuating member and method of making same|

US5965249A|1997-08-07|1999-10-12|Gore Enterprise Holdings, Inc.|Vibration damping composite material|

CA2309983A1|1997-11-12|1999-05-20|Robert S. Boyd|Vibration dampening laminate|

DE19826175B4|1998-06-13|2004-03-25|Daimlerchrysler Ag|Method and device for influencing possible body sound lines and possibly noise emissions from objects|

BG63469B1|1999-04-22|2002-02-28|Гриша ГЕТОВ|Brick-type building component|

EP1177950A1|2000-08-04|2002-02-06|Henkel Kommanditgesellschaft auf Aktien|A process for optimizing vibration damping|

US7530127B2|2002-05-24|2009-05-12|Dan-Foam Aps|Pillow and method of manufacturing a pillow|

ES2344736T3|2002-05-24|2010-09-06|Tempur World, Llc|COMFORT PILLOW|

JP4159035B2|2003-03-14|2008-10-01|ニチアス株式会社|Thermal expansion material and method for producing the same|

US7585559B2|2003-06-03|2009-09-08|Intellectual Property Holdings, Llc|Foam barrier heat shield|

US7288290B2|2004-05-26|2007-10-30|Ppg Industries Ohio, Inc.|Process for applying multi-component composite coatings to substrates to provide sound damping and print-through resistance|

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US7748184B1|2005-02-09|2010-07-06|Intellectual Property Holdings, Llc|Body panel having improved stiffness and method of making|

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

DE2756622A|DE2756622C2|1977-12-19|1977-12-19|Sheet or strip-shaped foam insulation material|

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