Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018235741) SOUND ABSORBING MATERIAL
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/235741 International Application No.: PCT/JP2018/022954
Publication Date: 27.12.2018 International Filing Date: 15.06.2018
IPC:
B32B 5/24 (2006.01) ,D04H 3/04 (2012.01) ,B60R 13/08 (2006.01) ,E04B 1/86 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5
Layered products characterised by the non-homogeneity or physical structure of a layer
22
characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
24
one layer being a fibrous or filamentary layer
D TEXTILES; PAPER
04
BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
H
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
3
Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
02
characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
04
in rectilinear paths, e.g. crossing at right angles
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
13
Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
08
Insulating elements, e.g. for sound insulation
E FIXED CONSTRUCTIONS
04
BUILDING
B
GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1
Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
62
Insulation or other protection; Elements or use of specified material therefor
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
82
specifically with respect to sound only
84
Sound-absorbing elements
86
slab-shaped
Applicants:
JXTGエネルギー株式会社 JXTG NIPPON OIL & ENERGY CORPORATION [JP/JP]; 東京都千代田区大手町一丁目1番2号 1-2, Otemachi 1-chome, Chiyoda-ku, Tokyo 1008162, JP
Inventors:
伊林 邦彦 IBAYASHI, Kunihiko; JP
小西 宏明 KONISHI, Hiroaki; JP
椎名 峻之 SHIINA, Muneyuki; JP
若山 昌弘 WAKAYAMA, Masahiro; JP
Agent:
小川 護晃 OGAWA, Moriaki; JP
奥山 尚一 OKUYAMA, Shoichi; JP
有原 幸一 ARIHARA, Koichi; JP
松島 鉄男 MATSUSHIMA, Tetsuo; JP
中村 綾子 NAKAMURA, Ayako; JP
森本 聡二 MORIMOTO, Toshiji; JP
Priority Data:
2017-12167421.06.2017JP
Title (EN) SOUND ABSORBING MATERIAL
(FR) MATÉRIAU INSONORISANT
(JA) 吸音材
Abstract:
(EN) This sound absorbing material is configured by laminating a porous sound absorbing body and two or more nonwoven fabric sheets; each of the nonwoven fabric sheets comprises a plurality of filaments that are stretched and arranged in one direction; the fiber diameter distribution of the plurality of filaments has a mode at 1-4 μm; and the weight per square meter of the nonwoven fabric sheets is 5-40 g/m2. This sound absorbing material is able to exhibit high sound absorption performance in a specific low frequency band of 6,000 Hz or less without substantially impairing lightness, flexibility, handling properties and the like of the porous sound absorbing material.
(FR) La présente invention concerne un matériau insonorisant conçu par stratification d'un corps insonorisant poreux et de deux feuilles de tissu non tissé ou plus ; chacune des feuilles de tissu non tissé comprend une pluralité de filaments qui sont étirés et disposés dans une direction ; la distribution de diamètre de fibre de la pluralité de filaments a un mode à 1-4 µm ; et le poids par mètre carré des feuilles de tissu non tissé est de 5 à 40 g/m2. Ce matériau insonorisant peut présenter une performance d'insonorisation élevée dans une bande basse fréquence spécifique de 6 000 Hz ou moins sans affecter sensiblement la légèreté, la flexibilité, les propriétés de manipulation et analogues du matériau insonorisant poreux.
(JA) 本発明による吸音材は、多孔質吸音体と2枚以上の不織布とが積層されて構成され、前記不織布は、延伸され且つ一方向に沿って配列された複数の長繊維フィラメントを有し、前記複数の長繊維フィラメントの繊維径分布の最頻値が1~4μmにあり、かつ、前記前記不織布の目付が5~40g/mである。本発明による吸音材は、前記多孔質吸音材の軽量性、柔軟性及び取扱性などをほとんど損なうことなく、6000Hz以下の所定の低周波数帯域において高い吸音性能を発揮し得る。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)