EP0335642A2
Expired / Lapsed
EP
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Vibration damping materials and soundproofing structures using such damping materials
Assignee: Nichias Corp
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Filing: 1989-03-28
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Granted: —
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Expires: 2009-03-28
Abstract
Abstract A vibration damper includes two materials, each being formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer or layers formed on one or both sides, which are arranged in opposition to each other through said viscoelastic layers and bonded together with the use of a hot-melt-adhesive synthetic resin layer having a high melting point. Alternatively, one of said materials is arranged in opposition to another metal sheet through said viscoelastic layer or layers and bonded thereto with the use of said hot-melt-adhesive synthetic resin layer. A soundproofing structure using such a vibration damer is also provided.
Inventors
- 👤 Takahiro Niwa
- 👤 Yasuo Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 15:21
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; F; F16; F16F; F16F7/00; B32B15/08; B32B15/16; B32B15/18; B32B15/20; B32B25/00; B32B25/04; B32B25/042; B32B25/08; B32B27/00; B32B27/06; B32B27/08; B32B7/00; B32B7/04; B32B7/12; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B9/00; E04B9/04; E04B9/045; F16F9/00; F16F9/30; F16F9/306; B32B2307/00; B32B2307/50; B32B2307/56; E04B2001/8457; E04B2001/8461; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/31504; Y10T428/3154; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31826
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
66 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layers.
Claim 2
Dependent Claim
66 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layers.
Claim 3
Dependent Claim
65 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layers.
Claim 4
Dependent Claim
65 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layers.
Claim 5
Dependent Claim
83 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, a second material formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layers.
Claim 6
Dependent Claim
83 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, a second material formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layers.
Claim 7
Dependent Claim
71 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, a second material formed of a metal sheet, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymer layer.
Claim 8
Dependent Claim
71 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, a second material formed of a metal sheet, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymer layer.
Claim 9
Dependent Claim
70 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, a second material formed of a metal sheet, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layer.
Claim 10
Dependent Claim
70 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, a second material formed of a metal sheet, and a hot-melt-adhesive synthetic resin layer having a high melting point, which serves to bond together said first and second materials, while they are arranged in opposition to each other through said viscoelastic polymeric layer.
Claim 11
Dependent Claim
78 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, second and third materials, each being formed of a metal sheet, and first and second hot-melt-adhesive synthetic resin layers having a high melting point, which serve to bond to said first material said second and third materials, while they are arranged in opposition to one another through said viscoelastic polymeric layers.
Claim 12
Dependent Claim
78 words
A vibration damping material comprising in combination: a first material formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, second and third materials, each being formed of a metal sheet, and first and second hot-melt-adhesive synthetic resin layers having a high melting point, which serve to bond to said first material said second and third materials, while they are arranged in opposition to one another through said viscoelastic polymeric layers.
Claim 13
Dependent Claim
79 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, a third material formed of a metal sheet, and first and second hot-melt-adhesive synthetic resin layers having a high melting point, which serve to bond said first and second materials to said third material, while they are arranged in opposition to one another through said viscoelastic polymer layers.
Claim 14
Dependent Claim
79 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer formed on one side, a third material formed of a metal sheet, and first and second hot-melt-adhesive synthetic resin layers having a high melting point, which serve to bond said first and second materials to said third material, while they are arranged in opposition to one another through said viscoelastic polymer layers.
Claim 15
Dependent Claim
78 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, a third material formed of a metal sheet, and first and second hot-melt-adhesive synthetic resin layers having a high melting point, which serve to bond said first and second materials to said third material, while they are arranged in opposition to one another through said viscoelastic polymer layers.
Claim 16
Dependent Claim
78 words
A vibration damping material comprising in combination: first and second materials, each being formed of a metal sheet having rubber- or synthetic resin-base viscoelastic polymeric layers formed on both sides, a third material formed of a metal sheet, and first and second hot-melt-adhesive synthetic resin layers having a high melting point, which serve to bond said first and second materials to said third material, while they are arranged in opposition to one another through said viscoelastic polymer layers.
Claim 17
Dependent Claim
40 words
A soundproofing structure comprising in combination: a sound absorbing material surrounding a noise generating portion, and a vibration damping material as claimed in any one of Claims 1 to 8, which forms a cladding panel of said sound absorbing material.
Claim 18
Dependent Claim
58 words
A soundproofing structure comprising in combination: a vibration damping material as claimed in any one of Claims 1 to 8, which is connected to a noise generating portion through a support fitting, and a soundproofing means for cutting off direct propagation of vibration generating from said noise generating portion to said vibration damping material through said support fitting.
Claim 19
Dependent Claim
82 words
A soundproofing structure comprising in combination: a member comprising a felt sound absorbing material surrounding a noise generating duct and a sound insulating sheet material, and a vibration damping material provided on the outside of said member, said vibration damping material including a steel sheet having a NBR-base viscoelastic polymer layer formed on one side and a colored steel sheet bonded thereto with a hot-melt-adhesive synthetic resin layer, while they are arranged in opposition to each other through said viscoelastic polymeric layer.
Claim 20
Dependent Claim
82 words
A soundproofing structure comprising in combination: a member comprising a felt sound absorbing material surrounding a noise generating duct and a sound insulating sheet material, and a vibration damping material provided on the outside of said member, said vibration damping material including a steel sheet having a NBR-base viscoelastic polymer layer formed on one side and a colored steel sheet bonded thereto with a hot-melt-adhesive synthetic resin layer, while they are arranged in opposition to each other through said viscoelastic polymeric layer.
Claim 21
Dependent Claim
52 words
A vibration damping material as claimed in any one of Claims 1 to 5, wherein one of an iron sheet, a zinc sheet, an aluminium sheet, a stainless steel sheet, a brass sheet, a copper sheet, a zinc sheet, a nickel sheet and a tin sheet is used as said metal sheet.
Claim 22
Dependent Claim
62 words
A vibration damping material as claimed in any one of Claims 1 to 8, wherein as said viscoelastic polymeric layer use is made of one of acrylonitrile-butadiene rubber, styrene-butadiene rubber, natural rubber, butyl rubber, an elethylene-propylene polymer, butadiene rubber, isoprene rubber, chloroprene rubber, ethylene propylene rubber, acrylic rubber, silicon rubber, fluorine rubber, epichlorohydrin rubber, urethane rubber, polynorbornene rubber and ethylene acrylic rubber.
Claim 23
Dependent Claim
37 words
A vibration damping material as claimed in any one of Claims 1 to 8, wherein one of nylons, polyesters, polypropylenes, polyethylenes and fluorine resins is used as said hot-melt-adhesive synthetic resin layer having a high melting point.
Claim 24
Dependent Claim
32 words
A vibration damping material as claimed in any one of Claims 6 to 8, wherein the metal sheets forming said second and third materials are a metal sheet which has been surface-treated.
Claim 25
Dependent Claim
67 words
A vibration damping materials as claimed in Claim 15, wherein as said metal sheet use is made of one of a galvanized iron sheet, a colored galvanized iron sheet, a vinyl chloride-coated steel sheet, a fluorine resin-coated steel sheet, an aluminium sheet, a colored aluminium sheet, an aluminium foil, a kraft paper-laminated aluminium sheet, a stainless steel sheet, a colored stainless steel sheet and a lead sheet.
References Cited (Backward Citations)
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