FR2329613A1 - Porous sound absorber consisting of substrate coated with polymer - partly filling orifices, pref. glass fabric coated with polymer contg. fluorine - Google Patents

Porous sound absorber consisting of substrate coated with polymer - partly filling orifices, pref. glass fabric coated with polymer contg. fluorine

Info

Publication number
FR2329613A1
FR2329613A1 FR7632919A FR7632919A FR2329613A1 FR 2329613 A1 FR2329613 A1 FR 2329613A1 FR 7632919 A FR7632919 A FR 7632919A FR 7632919 A FR7632919 A FR 7632919A FR 2329613 A1 FR2329613 A1 FR 2329613A1
Authority
FR
France
Prior art keywords
polymer
sound absorber
coated
pref
fluorine
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.)
Granted
Application number
FR7632919A
Other languages
French (fr)
Other versions
FR2329613B1 (en
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.)
Saint Gobain Performance Plastics Corp
Original Assignee
Chemical Fabrics Corp
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 Chemical Fabrics Corp filed Critical Chemical Fabrics Corp
Publication of FR2329613A1 publication Critical patent/FR2329613A1/en
Application granted granted Critical
Publication of FR2329613B1 publication Critical patent/FR2329613B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E04B1/8409—Sound-absorbing elements sheet-shaped
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)

Abstract

Sound absorber (A) consists of a substrate coated with org. polymer which partly fills the openings of the substrate. Porosity of the resulting composite material (A) is 1830 cm/min. at a press. difference of 12.7 mm water column. Openings have a cross-sectional dimension 0.05 (0.025) mm. (A) are used to reduce noise and echo, e.g. in closed rooms, conference halls, auditoria, sports halls, underground railway stations, passages, canals and conduits. Sound can be absorbed within a wide frequency range. In an example, sound absorber consisted of PTFE-coated glass fabrics.
FR7632919A 1975-10-31 1976-10-29 Porous sound absorber consisting of substrate coated with polymer - partly filling orifices, pref. glass fabric coated with polymer contg. fluorine Granted FR2329613A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62779975A 1975-10-31 1975-10-31
US73735176A 1976-09-28 1976-09-28

Publications (2)

Publication Number Publication Date
FR2329613A1 true FR2329613A1 (en) 1977-05-27
FR2329613B1 FR2329613B1 (en) 1983-01-21

Family

ID=27090534

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7632919A Granted FR2329613A1 (en) 1975-10-31 1976-10-29 Porous sound absorber consisting of substrate coated with polymer - partly filling orifices, pref. glass fabric coated with polymer contg. fluorine

Country Status (1)

Country Link
FR (1) FR2329613A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997004445A1 (en) * 1994-04-07 1997-02-06 Schuller International, Inc. Sound absorption laminate
US5824973A (en) * 1992-09-29 1998-10-20 Johns Manville International, Inc. Method of making sound absorbing laminates and laminates having maximized sound absorbing characteristics
FR2875821A1 (en) * 2004-09-24 2006-03-31 Didier Mouraret ACOUSTIC ABSORBENT FABRIC

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448823A (en) * 1966-05-20 1969-06-10 Owens Corning Fiberglass Corp Acoustical panels
GB1219023A (en) * 1967-08-08 1971-01-13 Saint Gobain Sound insulating products made of mineral fibres and thermoplastic materials
FR2280608A1 (en) * 1974-08-02 1976-02-27 Asahi Glass Co Ltd COMPOSITE NOISE ABSORPTION PRODUCT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448823A (en) * 1966-05-20 1969-06-10 Owens Corning Fiberglass Corp Acoustical panels
GB1219023A (en) * 1967-08-08 1971-01-13 Saint Gobain Sound insulating products made of mineral fibres and thermoplastic materials
FR2280608A1 (en) * 1974-08-02 1976-02-27 Asahi Glass Co Ltd COMPOSITE NOISE ABSORPTION PRODUCT

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824973A (en) * 1992-09-29 1998-10-20 Johns Manville International, Inc. Method of making sound absorbing laminates and laminates having maximized sound absorbing characteristics
WO1997004445A1 (en) * 1994-04-07 1997-02-06 Schuller International, Inc. Sound absorption laminate
FR2875821A1 (en) * 2004-09-24 2006-03-31 Didier Mouraret ACOUSTIC ABSORBENT FABRIC
WO2006035145A1 (en) 2004-09-24 2006-04-06 Acoustic Fabric Sound-absorbing fabric
CN101044288B (en) * 2004-09-24 2010-10-13 声学织物公司 Sound-absorbing fabric
US7976946B2 (en) 2004-09-24 2011-07-12 Acoustic Fabric Sound-absorbing fabric

Also Published As

Publication number Publication date
FR2329613B1 (en) 1983-01-21

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Legal Events

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TP Transmission of property
ST Notification of lapse