US4734323A
Expired / Lapsed
US
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Vibration damping soundproof sheets for use in vehicles
Assignee: Toyoda Gosei Co Ltd
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Filing: 1987-04-09
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Granted: 1988-03-29
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Expires: 2007-04-09
Abstract
Abstract This invention is directed to a vibration damping soundproof sheet for use in vehicles, in which the surface of the soundproof layer is made flat irrespective of the or uneven configuration at the surface of a vehicle. The soundproof layer-forming material comprises a formed rubber blend in which a foaming agent and other rubber blending agents are blended with a rubber type polymer in which the soundproof layer-forming material contains from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Inventors
- 👤 Junichi Sato
- 👤 Tomoyoshi Yamada
- 👤 Junichiro Naito
- 👤 Kunihisa Shigenobu
- 👤 Kouichi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:37
CPC Classifications
B; B60; B60R; B60R13/00; B60R13/08; B60R13/0815; B60R13/083; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249983; Y10T428/249985; Y10T428/249987; Y10T428/24999; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31924
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
98 words
Vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer-forming material comprising a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler and a softening agent was blended to a matrix comprising a rubber ingredient and a bituminous ingredient, and (B) a soundproof layer-forming material comprising a foamed rubber blend to be bonded to form on said vibration damping layer forming material, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Claim 2
Dependent Claim
98 words
Vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer-forming material comprising a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler and a softening agent was blended to a matrix comprising a rubber ingredient and a bituminous ingredient, and (B) a soundproof layer-forming material comprising a foamed rubber blend to be bonded to form on said vibration damping layer forming material, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Claim 3
Dependent Claim
109 words
A vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer-forming material comprising a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler, a softening agent and a thermosetting resin capable of co-crosslinking with a rubber ingredient is blended to a matrix comprising said rubber ingredient and a bituminous ingredient, and (B) a soundproof layer forming-material composing a foamed rubber blend to be bonded to form on said vibration damping layer-forming material, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of a 1,2-polybutadiene ingredient.
Claim 4
Dependent Claim
109 words
A vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer-forming material comprising a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler, a softening agent and a thermosetting resin capable of co-crosslinking with a rubber ingredient is blended to a matrix comprising said rubber ingredient and a bituminous ingredient, and (B) a soundproof layer forming-material composing a foamed rubber blend to be bonded to form on said vibration damping layer-forming material, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of a 1,2-polybutadiene ingredient.
Claim 5
Dependent Claim
133 words
A vibration damping soundproof sheet for use vehicles comprising: (A) a vibration damping layer forming material comprising a rubber type adhesive blend in which a tackifier, an inorganic filler, a fiberous filler and a softening agent are blended to a matrix comprising a rubber ingredient and a bituminous ingredient, (B) a retainer layer-forming material to be bonded to form on said vibration damping layer forming material comprising a thermosetting resin capable of co-crosslinking with the rubber ingredient in said vibration damping layer-forming material, and (C) a vibration proof layer forming material composing a foamed rubber blend to be bonded to form on said retainer layer-forming material, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Claim 6
Dependent Claim
133 words
A vibration damping soundproof sheet for use vehicles comprising: (A) a vibration damping layer forming material comprising a rubber type adhesive blend in which a tackifier, an inorganic filler, a fiberous filler and a softening agent are blended to a matrix comprising a rubber ingredient and a bituminous ingredient, (B) a retainer layer-forming material to be bonded to form on said vibration damping layer forming material comprising a thermosetting resin capable of co-crosslinking with the rubber ingredient in said vibration damping layer-forming material, and (C) a vibration proof layer forming material composing a foamed rubber blend to be bonded to form on said retainer layer-forming material, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Claim 7
Dependent Claim
33 words
A vibration damping soundproof sheet for use in vehicles as defined in claim 1, wherein an inorganic filler and a fiberous filler are blended with the thermosetting resin of the retainer layer-forming material.
Claim 8
Dependent Claim
29 words
A vibration damping soundproof sheet for use in vehicles as defined in claim 3, wherein a bituminous ingredient is blended with the thermosetting resin of the retainer layer-forming material.
Claim 9
Dependent Claim
63 words
A vibration damping soundproof sheet for use in vehicles as defined in claim 3, wherein a rubber ingredient capable of co-crosslinking with the curing resin of the retainer layer-forming and the rubber ingredient of the vibration damping layer forming material, a tackifier, an inorganic filler, a fiberous filler and a softening agent are blended to the thermosetting resin of the retainer layer-forming material.
Claim 10
Dependent Claim
68 words
A vibration forming soundproof sheet for use in vehicles as defined in claim 3, wherein a rubber ingredient capable of co-crosslinking with the curing resin of the retainer layer-forming material and the rubber ingredient of the vibration damping layer forming material, a tackifier, an inorganic filler, a fiberous filler, a softening agent and a bituminous ingredient are blended to the thermosetting resin of the retainer layer forming material.
Claim 11
Dependent Claim
141 words
A vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer-forming material comprising a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler, a softening agent and a thermosetting resin capable of co-crosslinking with a rubber ingredient are blended to a matrix comprising said rubber ingredient and a bituminous ingredient, (B) a retainer layer-forming material to be bonded to form onto said vibration damping layer forming material comprising a thermosetting resin capable of co-crosslinking with the rubber ingredient of said vibration damping layer-forming material, and (C) a soundproof layer-forming material comprising a foamed rubber blend to be bonded to form onto said retainer layer-forming material, in which a forming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Claim 12
Dependent Claim
141 words
A vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer-forming material comprising a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler, a softening agent and a thermosetting resin capable of co-crosslinking with a rubber ingredient are blended to a matrix comprising said rubber ingredient and a bituminous ingredient, (B) a retainer layer-forming material to be bonded to form onto said vibration damping layer forming material comprising a thermosetting resin capable of co-crosslinking with the rubber ingredient of said vibration damping layer-forming material, and (C) a soundproof layer-forming material comprising a foamed rubber blend to be bonded to form onto said retainer layer-forming material, in which a forming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient.
Claim 13
Dependent Claim
128 words
A vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer prepared by vulcanizing a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler and a softening agent are blended to a matrix comprising a rubber ingredient and a bituminous ingredient, (B) a soundproof layer to be formed onto said vibration damping layer prepared by vulcanizing a foamed rubber blend and having an open cell structure, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient, and (C) a resonance absorption plate layer made of material to be formed on said soundproof layer and having a higher density than said soundproof layer.
Claim 14
Dependent Claim
128 words
A vibration damping soundproof sheet for use in vehicles comprising: (A) a vibration damping layer prepared by vulcanizing a rubber type adhesive blend, in which a tackifier, an inorganic filler, a fiberous filler and a softening agent are blended to a matrix comprising a rubber ingredient and a bituminous ingredient, (B) a soundproof layer to be formed onto said vibration damping layer prepared by vulcanizing a foamed rubber blend and having an open cell structure, in which a foaming agent and other rubber blending agents are blended to a rubber type polymer containing from 15 to 85% by weight of 1,2-polybutadiene ingredient, and (C) a resonance absorption plate layer made of material to be formed on said soundproof layer and having a higher density than said soundproof layer.
Claim 15
Dependent Claim
31 words
A vibration damping soundproof sheet for use in vehicles as defined in claim 9, wherein the resonance absorption plate layer comprises the same material as that of the vibration damping layer.
Claim 16
Dependent Claim
26 words
A vibration damping layer soundproof sheet for use in vehicles as defined in claim 9, wherein the resonance absorption plate layer comprises a rubber type polymer.
Claim 17
Dependent Claim
25 words
A vibration damping soundproof sheet for use in vehicles as defined in claim 9, wherein the resonance absorption plate layer comprises a resin type polymer.
Claim 18
Dependent Claim
24 words
A vibration damping soundproof sheet for use in vehicles as defined in claim 9, wherein the resonance absorption plate layer comprises a metal plate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |