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1. (WO2019027866) FIBERS INCLUDING A CRYSTALLINE POLYOLEFIN AND A HYDROCARBON TACKIFIER RESIN, AND PROCESS FOR MAKING SAME
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Pub. No.: WO/2019/027866 International Application No.: PCT/US2018/044301
Publication Date: 07.02.2019 International Filing Date: 30.07.2018
IPC:
D01D 5/08 (2006.01) ,D04H 3/007 (2012.01) ,D04H 5/00 (2012.01)
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
D
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS
5
Formation of filaments, threads, or the like
08
Melt-spinning methods
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
07
otherwise than in a plane, e.g. in a tubular way
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
5
Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Inventors:
JOSEPH, Eugene G.; US
BATRA, Saurabh; US
REN, Liyun; US
TALWAR, Sachin; US
ROMANO, Michael D.; US
BERRIGAN, Michael R.; US
Agent:
BAKER, James, A.; US
RHODES, Kevin H.; US
BLANK, Colene H.,; US
HARTS, Dean M. ,; US
LEVINSON, Eric D.,; US
MAKI, Eloise J.,; US
NOWAK, Sandra K.,; US
OLSON, Peter L.,; US
RINGSRED, Ted K.,; US
Priority Data:
62/539,24231.07.2017US
Title (EN) FIBERS INCLUDING A CRYSTALLINE POLYOLEFIN AND A HYDROCARBON TACKIFIER RESIN, AND PROCESS FOR MAKING SAME
(FR) FIBRES COMPRENANT UNE POLYOLÉFINE CRISTALLINE ET UNE RÉSINE TACKIFIANTE HYDROCARBONÉE, ET LEUR PROCÉDÉ DE FABRICATION
Abstract:
(EN) Nonwoven fibrous webs including a multiplicity of (co)polymeric fibers made of a mixture including from about 50% w/w to about 99% w/w of at least one crystalline polyolefin (co)polymer, and from about 1% w/w to about 40% w/w of at least one hydrocarbon tackifier resin. A process for making the nonwoven fibrous webs includes heating the foregoing mixture to at least a Melting Temperature of the mixture to form a molten mixture, extruding this molten mixture through at least one orifice to form at least one filament, applying a gaseous stream to attenuate the at least one filament to form a plurality of discrete, discontinuous fibers, and cooling the plurality of discrete, discontinuous fibers to a temperature below the Melting Temperature and collecting the discrete discontinuous fibers as a nonwoven fibrous web. The nonwoven fibrous webs exhibit a Heat of Fusion measured using Differential Scanning Calorimetry of greater than 50 Joules/g.
(FR) L'invention concerne des bandes fibreuses non tissées comprenant une multiplicité de fibres (co)polymères constituées d'un mélange comprenant d'environ 50 % en poids à environ 99 % en poids d'au moins un (co)polymère de polyoléfine cristallin, et d'environ 1 % en poids à environ 40 % en poids d'au moins une résine tackifiante hydrocarbonée. Un procédé de fabrication des bandes fibreuses non tissées comprend le chauffage du mélange précédent à au moins une température de fusion du mélange pour former un mélange fondu, l'extrusion de ce mélange fondu à travers au moins un orifice pour former au moins un filament, l'application d'un flux gazeux pour atténuer le(s) filament(s) pour former une pluralité de fibres discontinues séparées, et le refroidissement de la pluralité de fibres discontinues séparées à une température inférieure à la température de fusion et la collecte des fibres discontinues séparées sous la forme d'une bande fibreuse non tissée. Les bandes fibreuses non tissées présentent une chaleur de fusion mesurée par calorimétrie différentielle à balayage supérieure à 50 joules/g.
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, JP, 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: English (EN)
Filing Language: English (EN)