SOUND ABSORBING MATERIAL INCLUDING MELT-BLOWN NONWOVEN FABRIC

PROBLEM TO BE SOLVED: To provide a novel sound absorbing material which is excellent in heat resistance property, and remarkably excellent in sound absorbing performance for noise and wear resistance of the surface.SOLUTION: The sound absorbing material is made of a laminated body having a thickness...

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Bibliographic Details
Main Authors NAKAMURA EIICHIRO, OKA KAZUHIDE, NAKATSUKA HITOSHI
Format Patent
LanguageEnglish
Published 27.02.2014
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
BRAIDING
BUILDING
CEILINGS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
INSULATION OR OTHER PROTECTION OF BUILDINGS
KNITTING
LACE-MAKING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
NON-WOVEN FABRICS
PERFORMING OPERATIONS
PHYSICS
ROOFS
SOUND-PRODUCING DEVICES
SPINNING
TEXTILES
TRANSPORTING
TRIMMINGS
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
WADDING
WALLS, e.g. PARTITIONS
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Summary:PROBLEM TO BE SOLVED: To provide a novel sound absorbing material which is excellent in heat resistance property, and remarkably excellent in sound absorbing performance for noise and wear resistance of the surface.SOLUTION: The sound absorbing material is made of a laminated body having a thickness of 5 to 50 mm, which includes a melt-blown nonwoven fabric formed by accumulating fine fibers made from a mixture of 80 mass% to 20 mass% of copolymerized polyethylene terephthalate resin and 20 mass% to 80 mass% of polybutylene terephthalate substantially in a planar shape and having an apparent density of 0.1 to 0.4 g/cmand a basis weight of 5 to 300 g/m, and a spun-bonded nonwoven fabric comprising polyester fibers having a single fiber fineness of 1 to 11 dtex and a basis weight of 10 to 100 g/mlaminated on at least one side of the nonwoven fabric. The spun-bonded nonwoven fabric is arranged on the uppermost surface.
Bibliography:Application Number: JP20120180486