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1. (WO2008077156) SPUNLAID FIBERS COMPRISING COATED CALCIUM CARBONATE, PROCESSES FOR THEIR PRODUCTION, AND NONWOVEN PRODUCTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2008/077156 International Application No.: PCT/US2008/053964
Publication Date: 26.06.2008 International Filing Date: 14.02.2008
IPC:
B28B 3/20 (2006.01) ,D04H 1/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
3
Producing shaped articles from the material by using presses; Presses specially adapted therefor
20
wherein the material is extruded
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
1
Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
Applicants:
MCAMISH, Larry, H. [US/US]; US (UsOnly)
SKELHORN, David, A. [US/US]; US (UsOnly)
IMERYS PIGMENTS, INC. [US/US]; 100 Mansell Court East, Suite 300 Roswell, GA 30076, US (AllExceptUS)
Inventors:
MCAMISH, Larry, H.; US
SKELHORN, David, A.; US
Agent:
STANLEY, Robert, C.; Finnegan, Henderson, Farabow, Garrett & dunner, l.l.P 901 New York Avenue, N.W. Washington, DC 20001, US
Priority Data:
60/870,86120.12.2006US (Considered void 03.07.2008)
60/941,68403.06.2007US
60/969,10030.08.2007US
PCT/US2007/08791918.12.2007US
Title (EN) SPUNLAID FIBERS COMPRISING COATED CALCIUM CARBONATE, PROCESSES FOR THEIR PRODUCTION, AND NONWOVEN PRODUCTS
(FR) FIBRES FILÉES CONSTITUÉES DE CARBONATE DE CALCIUM REVÊTU, LEURS PROCÉDÉS DE PRODUCTION ET PRODUITS NON TISSÉS
Abstract:
(EN) Disclosed herein, in one embodiment, are spunlaid fibers comprising at least one polymeric resin and at least one filler having an average particle size of less than or equal to about 5 microns and/or having a top cut of less than about 15 microns, wherein the at least one filler is present in an amount of less than about 40% by weight, relative to the total weight of the spunlaid fibers. Also disclosed herein is a method for producing spunlaid fibers comprising adding calcium carbonate to at least one polymeric resin and extruding the resulting mixture. Further disclosed herein are nonwoven fabrics comprising such spunlaid fibers and methods for producing them.
(FR) Dans un mode de réalisation, l'invention concerne des fibres filées comprenant au moins une résine polymère et au moins une matière de remplissage dont la dimension particulaire moyenne est inférieure ou égale à environ 5 microns et/ou dont la fraction de tête est inférieure à au moins 15 microns, ladite matière de remplissage étant présente dans une quantité inférieure à environ 40% en poids, par rapport au poids total des fibres filées. L'invention concerne également un procédé de production de fibres filées qui consiste à ajouter du carbonate de calcium à au moins une résine polymère et à extruder le mélange obtenu. L'invention concerne également des non tissés renfermant lesdites fibres filées et des procédés de production afférents.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)