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1. (WO2001000917) DURABLE MULTILAYER NONWOVEN MATERIALS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/000917 International Application No.: PCT/US2000/018000
Publication Date: 04.01.2001 International Filing Date: 29.06.2000
Chapter 2 Demand Filed: 11.12.2000
IPC:
B32B 5/26 (2006.01) ,D01F 6/46 (2006.01) ,D04H 13/00 (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
26
another layer also being fibrous or filamentary
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6
Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
44
from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
46
of polyolefins
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
13
Other non-woven fabrics
Applicants:
KIMBERLY-CLARK WORLDWIDE, INC. [US/US]; 401 N. Lake Street Neenah, WI 54956, US
Inventors:
ADAM, Gabriel, Hamman; US
CAMPBELL, Stephen, Michael; US
FRANK, Ryan, Clinton; US
HAYNES, Bryan, David; US
LAKE, Matthew, Boyd; US
MATELA, David, Michael; US
MCMANUS, Jeffrey, Lawrence; US
STRACK, David, Craige; US
WELCH, Howard, Martin; US
Agent:
TULLEY, Jr., Douglas, H. ; Kimberly-Clark Worldwide, Inc. 401 N. Lake St. Neenah, WI 54956, US
Priority Data:
09/607,06729.06.2000US
60/141,42929.06.1999US
Title (EN) DURABLE MULTILAYER NONWOVEN MATERIALS
(FR) NON-TISSES RESISTANTS MULTICOUCHES
Abstract:
(EN) A durable multi-layered meltblown fiber web is provided having a first layer of fine crystalline polypropylene fibers and a second layer of fibers bonded directly to the first layer of fibers. The second layer of fibers is formed from a blend of a crystalline polyolefin and an amorphous polyalphaolefin and can be of a similar size or larger average size than the fibers of the first layer. The multilayer meltblown fiber webs are durable, having a reciprocating abrasion resistance in excess of 1000 cycles, and can also provide a highly pliable web having improved drape.
(FR) L'invention concerne une bande de fibres résistante multicouche produite par soufflage en fusion et possédant une première couche de fibres fines cristallines de polypropylène et une deuxième couche de fibres adhérant directement à la première couche de fibres. La deuxième couche de fibres est obtenue à partir d'un mélange d'une polyoléfine cristalline et d'une polyalphaoléfine amorphe et peut présenter une dimension similaire ou une dimension moyenne plus importante que celle des fibres de la première couche. Ces bandes de fibres multicouches possèdent une durée de vie prolongée, une résistance à l'abrasion effectuée par déplacement alternatif supérieure à 1000 cycles et peuvent également constituer une bande extrêmement pliable présentant un drapé amélioré.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)