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WO2002032639A3 - Materiaux a proprietes d'absorption des sons - Google Patents

Materiaux a proprietes d'absorption des sons Download PDF

Info

Publication number
WO2002032639A3
WO2002032639A3 PCT/ZA2001/000073 ZA0100073W WO0232639A3 WO 2002032639 A3 WO2002032639 A3 WO 2002032639A3 ZA 0100073 W ZA0100073 W ZA 0100073W WO 0232639 A3 WO0232639 A3 WO 0232639A3
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
materials
sound absorbing
absorbing properties
compressed
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/ZA2001/000073
Other languages
English (en)
Other versions
WO2002032639A2 (fr
Inventor
Dunstan Walter Runciman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU2002232966A priority Critical patent/AU2002232966A1/en
Publication of WO2002032639A2 publication Critical patent/WO2002032639A2/fr
Anticipated expiration legal-status Critical
Publication of WO2002032639A3 publication Critical patent/WO2002032639A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
    • B29C51/004—Textile or other fibrous material made from plastics fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4242—Carbon fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E04B2001/8419—Acoustical cones or the like, e.g. for anechoic chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Matériau anéchoïque qui comporte une masse comprimée de fibres synthétiques en plastique. Au moins les surfaces desdites fibres sont constituées de matière synthétique plastique soudable. Lesdites fibres sont soudées ensemble au niveau de leurs points de contact par application de chaleur à un moule dans lequel elles sont comprimées.
PCT/ZA2001/000073 2000-06-05 2001-06-05 Materiaux a proprietes d'absorption des sons Ceased WO2002032639A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002232966A AU2002232966A1 (en) 2000-06-05 2001-06-05 Materials which have sound absorbing properties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2000/2785 2000-06-05
ZA200002785 2000-06-05

Publications (2)

Publication Number Publication Date
WO2002032639A2 WO2002032639A2 (fr) 2002-04-25
WO2002032639A3 true WO2002032639A3 (fr) 2003-04-03

Family

ID=25588775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2001/000073 Ceased WO2002032639A2 (fr) 2000-06-05 2001-06-05 Materiaux a proprietes d'absorption des sons

Country Status (2)

Country Link
AU (1) AU2002232966A1 (fr)
WO (1) WO2002032639A2 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871117A (en) * 1957-10-12 1961-06-21 Freudenberg Carl Kg Improvements in or relating to the production of mouldings containing synthetic materials
US4420526A (en) * 1980-10-21 1983-12-13 Firma Carl Freudenberg Sound absorbing irregularly shaped panel
EP0323826A1 (fr) * 1988-01-05 1989-07-12 Nec Corporation Absorbant pour ondes électromagnétiques
US5047453A (en) * 1984-05-04 1991-09-10 Hoechst Aktiengesellschaft Process for preparing moldings by compacting and simultaneously bonding fibrous material
WO1997000989A1 (fr) * 1995-06-23 1997-01-09 Minnesota Mining And Manufacturing Company Procede d'attenuation sonore et isolation acoustique appliquee
US5657386A (en) * 1995-09-06 1997-08-12 Schwanke; Jurgen H. Electromagnetic shield for cellular telephone
US5677027A (en) * 1995-01-13 1997-10-14 Nissan Motor Co., Ltd. Sound insulating structure
EP0963964A1 (fr) * 1997-02-27 1999-12-15 Osaka Gas Company Limited Materiau d'isolation thermique et acoustique, et son procede de production
WO2001031131A1 (fr) * 1999-10-29 2001-05-03 Owens Corning Produit fibreux d'isolation acoustique

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871117A (en) * 1957-10-12 1961-06-21 Freudenberg Carl Kg Improvements in or relating to the production of mouldings containing synthetic materials
US4420526A (en) * 1980-10-21 1983-12-13 Firma Carl Freudenberg Sound absorbing irregularly shaped panel
US5047453A (en) * 1984-05-04 1991-09-10 Hoechst Aktiengesellschaft Process for preparing moldings by compacting and simultaneously bonding fibrous material
EP0323826A1 (fr) * 1988-01-05 1989-07-12 Nec Corporation Absorbant pour ondes électromagnétiques
US5677027A (en) * 1995-01-13 1997-10-14 Nissan Motor Co., Ltd. Sound insulating structure
WO1997000989A1 (fr) * 1995-06-23 1997-01-09 Minnesota Mining And Manufacturing Company Procede d'attenuation sonore et isolation acoustique appliquee
US5657386A (en) * 1995-09-06 1997-08-12 Schwanke; Jurgen H. Electromagnetic shield for cellular telephone
EP0963964A1 (fr) * 1997-02-27 1999-12-15 Osaka Gas Company Limited Materiau d'isolation thermique et acoustique, et son procede de production
WO2001031131A1 (fr) * 1999-10-29 2001-05-03 Owens Corning Produit fibreux d'isolation acoustique

Also Published As

Publication number Publication date
AU2002232966A1 (en) 2002-04-29
WO2002032639A2 (fr) 2002-04-25

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