SEMI-CONTINUOUS FILAMENTS INCLUDING A CRYSTALLINE POLYOLEFIN AND A HYDROCARBON TACKIFIER RESIN, AND PROCESS FOR MAKING SAME

Nonwoven webs including one or more semi-continuous filaments 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. The at least one semi-continuous filam...

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Main Authors TALWAR, Sachin, THELEN, Jacob J, ROMANO, Michael D, BATRA, Saurabh, BECKER, Zackary J, REN, Liyun, JOSEPH, Eugene G, BERRIGAN, Michael R, STELTER, John D
Format Patent
LanguageEnglish
French
Published 25.04.2019
Subjects
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
NON-WOVEN FABRICS
SPINNING
TEXTILES
TRIMMINGS
WADDING
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Summary:Nonwoven webs including one or more semi-continuous filaments 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. The at least one semi-continuous filament exhibits molecular orientation, and at least one of the crystalline polyolefin (co)polymer or the nonwoven web exhibits a Heat of Fusion measured using Differential Scanning Calorimetry of greater than 50 Joules/g. A process for making the semi-continuous filaments and nonwoven webs is also disclosed. L'invention concerne des nappes non tissées comprenant un ou plusieurs filaments semi-continus constitués 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. Le ou les filaments semi-continus présentent une orientation moléculaire, et au moins l'un du (co)polymère de polyoléfine cristallin ou de la nappe non tissée présente une chaleur de fusion mesurée par calorimétrie différentielle à balayage supérieure à 50 Joules/g. L'invention concerne également un procédé de fabrication des filaments semi-continus et des nappes non tissées.
Bibliography:Application Number: WO2018IB55686