JP2571202B

PURPOSE:To prevent the entry of noise into a room from an apparatus or the outside and to easily arrange a sound-absorbing material in a narrow passage by preparing said material by forming an air permeable elastic film to the surface of block-shape soft foamed polyurethane. CONSTITUTION:An air perm...

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Bibliographic Details
Main Author SUDO KUNIO
Format Patent
LanguageEnglish
Published 16.01.1997
Edition6
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PERFORMING OPERATIONS
PHYSICS
SOUND-PRODUCING DEVICES
TRANSPORTING
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Abstract PURPOSE:To prevent the entry of noise into a room from an apparatus or the outside and to easily arrange a sound-absorbing material in a narrow passage by preparing said material by forming an air permeable elastic film to the surface of block-shape soft foamed polyurethane. CONSTITUTION:An air permeable elastic film 2 composed of a thermal adhesive resin is formed to the surface of block-shape soft foamed polyurethane 1. Foamed polyurethane is cut into a predetermined shape, for example, a trigonal prism shape with a dimension of a=b=15cm, c=20cm and d=23cm as shown by a drawing and the elastic film composed of a film forming material such as natural rubber, synthetic rubber or a thermoplastic elastomer is formed to the surface of said polyurethane. The 100% modulus of the elastic film is pref. 10-200kg/cm and the thickness thereof is pref. 10-120mum.
AbstractList PURPOSE:To prevent the entry of noise into a room from an apparatus or the outside and to easily arrange a sound-absorbing material in a narrow passage by preparing said material by forming an air permeable elastic film to the surface of block-shape soft foamed polyurethane. CONSTITUTION:An air permeable elastic film 2 composed of a thermal adhesive resin is formed to the surface of block-shape soft foamed polyurethane 1. Foamed polyurethane is cut into a predetermined shape, for example, a trigonal prism shape with a dimension of a=b=15cm, c=20cm and d=23cm as shown by a drawing and the elastic film composed of a film forming material such as natural rubber, synthetic rubber or a thermoplastic elastomer is formed to the surface of said polyurethane. The 100% modulus of the elastic film is pref. 10-200kg/cm and the thickness thereof is pref. 10-120mum.
Author SUDO KUNIO
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Chemistry
Sciences
Physics
Edition 6
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Snippet PURPOSE:To prevent the entry of noise into a room from an apparatus or the outside and to easily arrange a sound-absorbing material in a narrow passage by...
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SubjectTerms ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PERFORMING OPERATIONS
PHYSICS
SOUND-PRODUCING DEVICES
TRANSPORTING
Title JP2571202B
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