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WO1997048576A1 - Multilayered insulation sheet - Google Patents

Multilayered insulation sheet Download PDF

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Publication number
WO1997048576A1
WO1997048576A1 PCT/KR1997/000118 KR9700118W WO9748576A1 WO 1997048576 A1 WO1997048576 A1 WO 1997048576A1 KR 9700118 W KR9700118 W KR 9700118W WO 9748576 A1 WO9748576 A1 WO 9748576A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
insulation sheet
density region
insulation
plastic layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR1997/000118
Other languages
French (fr)
Inventor
Hoe Hyon Kwon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAEHAN CHEMICAL IND Co Ltd
Original Assignee
DAEHAN CHEMICAL IND Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DAEHAN CHEMICAL IND Co Ltd filed Critical DAEHAN CHEMICAL IND Co Ltd
Publication of WO1997048576A1 publication Critical patent/WO1997048576A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/20—Making multilayered or multicoloured articles
    • B29C43/203—Making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/263—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer having non-uniform thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • B29C2043/022—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having locally depressed lines, e.g. hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • B29C2043/023—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3613—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons applying pressure locally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3041—Trim panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • This invention relates to a multilayered insulation sheet, and in
  • Insulation sheets are attached on proper parts of automobiles.
  • insulation sheets are used to shut off or absorb the noises and
  • the known insulation sheets are disposed mainly on the floor panel
  • insulation sheets are used to prevent the noise and vibration generating
  • the known insulation sheets are generally composed of
  • One object of invention is to solve the above mentioned problems in
  • Another object of invention is to provide the insulation sheet which
  • hoods(3) which cover the engine room(2) of vehicle body(l ).
  • sheet(4) is comprising a foamed plastic layer(12), resin felt layers(ll)
  • said insulation sheet(4) is sectioned into the high density region(5)
  • cover sheet( l ⁇ ) which covers the surfaces of said resin felt layers(ll),
  • Fig. 1 is a view showing an exemplary use of the embodiment of the
  • Fig. 2 is a perspective view of said embodiment.
  • Fig. 3 is a sectional view according to line A- A of Fig. 2.
  • sheet(4) may be attached to the inner surface of engine hood(3) by
  • This insulation sheet(4) is made of soft and porous multilayer
  • layer(12) such as polyurethane sponge is disposed in the middle part of
  • non- woven fabric layers( l ⁇ ) are disposed on the outer surface of resin
  • the non- woven fabric layers(l ⁇ ) may be
  • insulation sheets(4) may be formed in conformity with the
  • multilayer sheets made of soft and porous materials are relatively low in
  • insulation sheets comprising soft and porous materials and being

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Multimedia (AREA)
  • Textile Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

This invention relates to a multilayered insulation sheet which could effectively reduce the noise level of the inner and outer spaces of the vehicles. According to the invention, there is provided an insulation sheet comprising a foamed plastic layer (12), resin felt layers (11) disposed on either side of said foamed plastic layer (12) and cover sheet (10) which covers the surfaces of said resin felt layers (11), and said insulation sheet (4) is sectioned into the high density region (5) which is made by relatively higher pressured pressing and includes at least the marginal areas of sheet and the low density region (6) which is made by relatively lower pressured pressing and includes the rest areas except said high density region (5).

Description

DESCRIPTION
Title of Invention
Multilayered Insulation Sheet
Technical Field
This invention relates to a multilayered insulation sheet, and in
particular to a multilayered insulation sheet which could effectively
reduce the noise level of inner and our space of the vehicles.
Background Art
Insulation sheets are attached on proper parts of automobiles. These
insulation sheets are used to shut off or absorb the noises and
vibrations and harshness called N. V. H. for the purpose of queit and
comfortable driving condition.
The known insulation sheets are disposed mainly on the floor panel,
door panels, partition between engine room and passenger compartment
or partition between passenger compartment and trunk room. These
insulation sheets are used to prevent the noise and vibration generating
from an engine or powertrain from transmitting or passing into the
passenger compartment. But, the design for noise insulation oriented to
a quiet passenger compartment could not satisfy the consummer' s high requirement for enhanced standard of quiet cars.
Moreover, the noises going out from the engine room towards the
open space may increase directly the noise level of road, and these
noises may return to the passenger compartment, which results in
increasing the noise of passemger compartment.
Meanwhile, the known insulation sheets are generally composed of
one sheets or multilayer sheets which arc uniformly pressed to be
shaped to preditermined forms. But, those uniformly pressed insulation
sheets could not achieve the desired absorption of noises, shape
sustenance and workability in attaching process aginst the panels of
vehicles.
Disclosure of Invention
One object of invention is to solve the above mentioned problems in
relation with the insulation sheets of automobiles and to provide
insulation sheets which could effectively reduce the noises going out
from the engine room towards the outside of automobiles.
Another object of invention is to provide the insulation sheet which
has enhanced property of insulation and shape- sustenance and
workability in attaching process. According to one feature of the invention, there is provided an
insulation sheet(4) which is disposed on the inner surface of engine
hoods(3) which cover the engine room(2) of vehicle body(l ).
According to another feature of the invention, said insulation
sheet(4) is comprising a foamed plastic layer(12), resin felt layers(ll)
disposed on either side of said foamed plastic layer(12) and cover
sheet(lθ) which covers the surfaces of said resin felt layers(ll), and
said insulation sheet(4) is sectioned into the high density region(5)
which is made by relatively higher pressured pressing and includes at
least the marginal areas of sheet and the low density region(6) which is
made by relatively lower pressured pressing and includes the rest areas
except said high density region(5).
According to another feature of the invention, there is provided of
an insulation sheet comprising a foamed plastic layer(12), resin felt
layers( ll ) disposed on either side of said foamed plastic layer( 12) and
cover sheet( lθ) which covers the surfaces of said resin felt layers(ll),
and said insulation sheet(4) is sectioned into the high density region(5)
which is made by relatively higher pressured pressing and includes at least the marginal areas of sheet and the low density region(6) which is
made by relatively lower pressured pressing and includes the rest areas
except said high density region(5).
Brief Description of Drawings.
The invention will be descibed in more detail with reference to the
drawings in which i
Fig. 1 is a view showing an exemplary use of the embodiment of the
invention.
Fig. 2 is a perspective view of said embodiment.
Fig. 3 is a sectional view according to line A- A of Fig. 2.
Best Mode for Carrying out The invention
Referring to the Figures, there is provided an insulation sheet(4)
which is disposed and attached to the inner surface of engine hood(3)
which covers the engin room(2) of the vehicle body( l ). This insulation
sheet(4) may be attached to the inner surface of engine hood(3) by
means of screw(7). But, other attaching means such as adhesive may be
used.
This insulation sheet(4) is made of soft and porous multilayer
materials which comprising foamed plastic layer, resin felt layer and non-woven fabric layer.
In the preferred embodiment shown in Fig. 3, the foamed plastic
layer(12) such as polyurethane sponge is disposed in the middle part of
multilayer and the resin felt layers( ll ) made of resin -impregnated felt
are disposed on both surfaces of foamed plastic layer(12), and
non- woven fabric layers( lθ) are disposed on the outer surface of resin
felt layers( l l ). If necessary, the non- woven fabric layers(lθ) may be
treated by water-resistant agents.
These insulation sheets(4) may be formed in conformity with the
contour of the vehicle body or the shape of vehicle components. As the
multilayer sheets made of soft and porous materials are relatively low in
shape- sustenance and workability, the marginal areas and intermediate
areas of the insulation sheet or fastening areas against vehicle body
should be pressed with relatively high pressure to become thinner and
rigid high-density regions(S), whereas rest areas of sheets should be
pressed with relatively low pressure to become thicker and soft
low-density regions(6). Those structure will enhance the insulation
property as well as the shape-sustenance and workability. The screw(7)
will be fastened at the high density region(5) so that the insulation
sheet should be attached against the vehicle body.
- r> According to the invention as described above, as the insulation
sheets should be attached on the inner surface of engine hoods(3), the
noises going out from the cngin room could be effectively reduced,
which will firstly reduce the noise level of road on which the car is
driving, and will secondly reduce the returning noise from outside the
vehicles to the passinger compartment, and finally resulting in more
comfortable and quiet driving conditions. In addition, as multilayered
insulation sheets comprising soft and porous materials and being
sectioned into high density region and low density region will enhance
the insulation property as well as the shape- sustenance and workability.

Claims

1. An insulation sheet(4) which is disposed on the inner surface of
engine hood(3) which cover the engine room(2) of vehicle body( l ).
2. An insulation sheet according to claim 1 wherein said insulation
sheet(4) is comprising a foamed plastic layer( 12), resin felt layers(ll)
disposed on either side of said foamed plastic layer(12) and cover
sheet(lθ) which covers the surfaces of said resin felt layers(ll), and
said insulation sheet(4) is sectioned into the high density region(5)
which is made by relatively higher pressured pressing and includes at
least the marginal areas of sheet and the low density region(6) which is
made by relatively lower pressured pressing and includes the rest areasr
parts except said high density rcgion(5).
3. An insulation sheet comprising a foamed plastic layer(12), resin
felt layers( l l ) disposed on either side of said foamed plastic layer(12)
and cover sheet( lθ) which covers the surfaces of said resin felt
layers( ll ), and said insulation sheet(4) is sectioned into the high density
region(5) which is made by relatively higher pressured pressing and
includes at least the marginal areas of sheet and the low density region(6) which is made by relatively lower pressured pressing and
includes the rest areas except said high density region(5).
PCT/KR1997/000118 1996-06-21 1997-06-20 Multilayered insulation sheet Ceased WO1997048576A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1996/22837 1996-06-21
KR19960022837 1996-06-21

Publications (1)

Publication Number Publication Date
WO1997048576A1 true WO1997048576A1 (en) 1997-12-24

Family

ID=19462811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1997/000118 Ceased WO1997048576A1 (en) 1996-06-21 1997-06-20 Multilayered insulation sheet

Country Status (2)

Country Link
KR (1) KR100235678B1 (en)
WO (1) WO1997048576A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038006A1 (en) * 1999-11-23 2001-05-31 Sca Schucker Gmbh & Co. Method and arrangement for producing body components being provided with a silencing material layer
WO2004067935A1 (en) * 2003-01-27 2004-08-12 Rieter Technologies Ag Engine compartment partitioning layer
WO2007000225A1 (en) * 2005-06-24 2007-01-04 Röchling Automotive AG & Co. KG Method for producing a panel or housing part of a vehicle
EP1873018A1 (en) * 2006-06-28 2008-01-02 Polytec Automotive GmbH & Co. KG Sound-absorbent component for covering assemblies in the under-bonnet area of vehicles
WO2013110573A1 (en) * 2012-01-26 2013-08-01 Faurecia Automotive Industrie Component for a motor vehicle and associated motor vehicle
EP2735439A1 (en) * 2012-11-23 2014-05-28 Automotive Insulations Limited Method of Producing an Insulation Component, and an Insulation Component Produced by the Method
EP2962827A1 (en) * 2014-07-03 2016-01-06 Global System International S.p.A. Method and apparatus for moulding components for vehicles
CN111186188A (en) * 2020-01-19 2020-05-22 东风汽车集团有限公司 Sound-absorbing heat-insulating pad for automobile engine compartment
EP3118848B1 (en) * 2015-07-17 2021-06-02 Mecaer Aviation Group S.p.A. Multilayer panel for soundproofing aircraft interiors
FR3141903A1 (en) * 2022-11-15 2024-05-17 Psa Automobiles Sa Soundproofing panel for the front hood of a motor vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100615667B1 (en) * 2004-11-26 2006-08-25 주식회사 서린건축사사무소 Building exterior fixture fixing device using wing type fixing member

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646864A (en) * 1985-10-07 1987-03-03 Chrysler Motors Corporation Integral silencer pad and water deflector
DE3601204A1 (en) * 1986-01-17 1987-07-23 Daimler Benz Ag NOISE-REDUCING FAIRING FOR THE ENGINE COMPARTMENT OF MOTOR VEHICLES
DE3903471A1 (en) * 1988-02-17 1989-08-31 H P Chemie Pelzer Res & Dev MOLDED PART, ESPECIALLY FOR INSTALLATION IN VEHICLES.
DE4019121A1 (en) * 1989-06-13 1991-01-10 Suzuki Motor Co Insulation of bonnet of motor vehicle - is attached by screws or rivets to bonnet reinforcing member
DE4211409A1 (en) * 1992-04-04 1993-10-07 Daimler Benz Ag Self-supporting, heat and sound-insulating cladding for internal combustion engines of motor vehicles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256981Y2 (en) * 1974-09-20 1977-12-23

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646864A (en) * 1985-10-07 1987-03-03 Chrysler Motors Corporation Integral silencer pad and water deflector
DE3601204A1 (en) * 1986-01-17 1987-07-23 Daimler Benz Ag NOISE-REDUCING FAIRING FOR THE ENGINE COMPARTMENT OF MOTOR VEHICLES
DE3903471A1 (en) * 1988-02-17 1989-08-31 H P Chemie Pelzer Res & Dev MOLDED PART, ESPECIALLY FOR INSTALLATION IN VEHICLES.
DE4019121A1 (en) * 1989-06-13 1991-01-10 Suzuki Motor Co Insulation of bonnet of motor vehicle - is attached by screws or rivets to bonnet reinforcing member
DE4211409A1 (en) * 1992-04-04 1993-10-07 Daimler Benz Ag Self-supporting, heat and sound-insulating cladding for internal combustion engines of motor vehicles

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038006A1 (en) * 1999-11-23 2001-05-31 Sca Schucker Gmbh & Co. Method and arrangement for producing body components being provided with a silencing material layer
WO2004067935A1 (en) * 2003-01-27 2004-08-12 Rieter Technologies Ag Engine compartment partitioning layer
WO2007000225A1 (en) * 2005-06-24 2007-01-04 Röchling Automotive AG & Co. KG Method for producing a panel or housing part of a vehicle
EP1873018A1 (en) * 2006-06-28 2008-01-02 Polytec Automotive GmbH & Co. KG Sound-absorbent component for covering assemblies in the under-bonnet area of vehicles
US9637068B2 (en) 2012-01-26 2017-05-02 Faurecia Automotive Industrie Component for a motor vehicle and associated motor vehicle
WO2013110573A1 (en) * 2012-01-26 2013-08-01 Faurecia Automotive Industrie Component for a motor vehicle and associated motor vehicle
FR2986207A1 (en) * 2012-01-26 2013-08-02 Faurecia Automotive Ind MOTOR VEHICLE EQUIPMENT PIECE AND ASSOCIATED MOTOR VEHICLE
EP2735439A1 (en) * 2012-11-23 2014-05-28 Automotive Insulations Limited Method of Producing an Insulation Component, and an Insulation Component Produced by the Method
EP2962827A1 (en) * 2014-07-03 2016-01-06 Global System International S.p.A. Method and apparatus for moulding components for vehicles
EP3513941A3 (en) * 2014-07-03 2019-10-02 TWICE PS S.p.A. Component for vehicles
EP3118848B1 (en) * 2015-07-17 2021-06-02 Mecaer Aviation Group S.p.A. Multilayer panel for soundproofing aircraft interiors
CN111186188A (en) * 2020-01-19 2020-05-22 东风汽车集团有限公司 Sound-absorbing heat-insulating pad for automobile engine compartment
FR3141903A1 (en) * 2022-11-15 2024-05-17 Psa Automobiles Sa Soundproofing panel for the front hood of a motor vehicle

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KR100235678B1 (en) 1999-12-15

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