BR0016698A - Molded piece of polymeric foam with sound absorption capacity - Google Patents

Molded piece of polymeric foam with sound absorption capacity

Info

Publication number
BR0016698A
BR0016698A BR0016698-7A BR0016698A BR0016698A BR 0016698 A BR0016698 A BR 0016698A BR 0016698 A BR0016698 A BR 0016698A BR 0016698 A BR0016698 A BR 0016698A
Authority
BR
Brazil
Prior art keywords
absorption capacity
sound absorption
polymeric foam
molded piece
molded
Prior art date
Application number
BR0016698-7A
Other languages
Portuguese (pt)
Inventor
Arno Becker
Dirk Sagemuehl
Original Assignee
Bayer Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7934390&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0016698(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR0016698A publication Critical patent/BR0016698A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0058—≥50 and <150kg/m3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2350/00—Acoustic or vibration damping material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

"PEçA MOLDADA DE ESPUMA POLIMéRICA COM CAPACIDADE DE ABSORçãO DE SOM". A invenção refere-se a uma peça moldada de espuma polimérica com elevada capacidade de absorção na faixa de freq³ência superior a 1 500 HZ, em que a elevação da capacidade de absorção de som é obtida por uma perfuração da camada de vedação na superfície da peça moldada."POLYMERIC FOAM MOLDED PIECE WITH SOUND ABSORPTION CAPACITY". The invention relates to a molded piece of polymeric foam with a high absorption capacity in the frequency range above 1 500 HZ, in which the increase in the sound absorption capacity is obtained by perforating the sealing layer on the surface of the part molded.

BR0016698-7A 1999-12-24 2000-12-12 Molded piece of polymeric foam with sound absorption capacity BR0016698A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19962865A DE19962865C1 (en) 1999-12-24 1999-12-24 Shaped polymer foam component for sound absorption purposes in automobiles is provided with perforations in its compacted surface layer
PCT/EP2000/012565 WO2001048069A1 (en) 1999-12-24 2000-12-12 Sound-absorbing polymer foam molded article

Publications (1)

Publication Number Publication Date
BR0016698A true BR0016698A (en) 2002-09-24

Family

ID=7934390

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0016698-7A BR0016698A (en) 1999-12-24 2000-12-12 Molded piece of polymeric foam with sound absorption capacity

Country Status (9)

Country Link
EP (1) EP1244734A1 (en)
JP (1) JP2003518538A (en)
KR (1) KR20020063920A (en)
AU (1) AU2008301A (en)
BR (1) BR0016698A (en)
CA (1) CA2394760A1 (en)
DE (1) DE19962865C1 (en)
MX (1) MXPA02006238A (en)
WO (1) WO2001048069A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310907B3 (en) 2003-03-13 2004-01-08 Bayer Ag Sound- and heat-insulating construction element
JP2018140553A (en) * 2017-02-28 2018-09-13 パナソニックＩｐマネジメント株式会社 Composite materials and devices using such composite materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1510712A (en) * 1974-06-04 1978-05-17 Scott Paper Co Perforated embossed film to foam laminates
KR100190474B1 (en) * 1991-04-30 1999-06-01 그레이스 스티븐 에스. Perforated plastic foam and process for making the same
DK0602262T3 (en) * 1992-12-15 1997-09-01 Scriptoria Nv Polyolefin foam-shaped foam plastic sheets
CN1232572C (en) * 1998-09-17 2005-12-21 陶氏环球技术公司 Perforated foams

Also Published As

Publication number Publication date
DE19962865C1 (en) 2001-02-15
CA2394760A1 (en) 2001-07-05
MXPA02006238A (en) 2003-01-28
EP1244734A1 (en) 2002-10-02
AU2008301A (en) 2001-07-09
WO2001048069A1 (en) 2001-07-05
KR20020063920A (en) 2002-08-05
JP2003518538A (en) 2003-06-10

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired