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1. WO2004067818 - FIBERS FORMED FROM IMMISCIBLE POLYMER BLENDS

Publication Number WO/2004/067818
Publication Date 12.08.2004
International Application No. PCT/US2004/002837
International Filing Date 30.01.2004
Chapter 2 Demand Filed 27.08.2004
IPC
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
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
8
Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
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
8
Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
04
from synthetic polymers
06
with at least one polyolefin as constituent
D01F 6/46 (2006.01)
D01F 8/00 (2006.01)
D01F 8/06 (2006.01)
CPC
D01F 8/00
D01F 8/06
D01F 8/10
D01F 8/12
Y10T 428/2913
Y10T 428/2924
Applicants
  • DOW GLOBAL TECHNOLOGIES INC. [US/US]; Washington Street 1790 Building Midland, MI 48674, US (AllExceptUS)
  • VAN DUN, Jozef [BE/US]; US (UsOnly)
  • BOSAK, Daniel, R. [US/US]; US (UsOnly)
  • FLOOD, John, E. [US/US]; US (UsOnly)
  • KNICKERBOCKER, Edward, N. [US/US]; US (UsOnly)
  • ALLGEUER, Thomas [AT/CH]; CH (UsOnly)
  • KATZER, Karin [AT/CH]; CH (UsOnly)
  • PRIETO, Miguel, A. [CO/CH]; CH (UsOnly)
Inventors
  • VAN DUN, Jozef; US
  • BOSAK, Daniel, R.; US
  • FLOOD, John, E.; US
  • KNICKERBOCKER, Edward, N.; US
  • ALLGEUER, Thomas; CH
  • KATZER, Karin; CH
  • PRIETO, Miguel, A.; CH
Agents
  • HOPPE, James, T.; The Dow Chemical Company Intellectual Property Section P.O. Box 1967 Midland, MI 48674-1967, US
Priority Data
60/443,74030.01.2003US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FIBERS FORMED FROM IMMISCIBLE POLYMER BLENDS
(FR) FIBRES CONSTITUEES DE MELANGES POLYMERIQUES IMMISCIBLES
Abstract
(EN)
The present invention relates to soft touch fibers and nonwoven fabrics made from such fibers. The fibers comprise an incompatible polymer system which leads to the soft touch quality. The fibers comprise a mixture of at least two thermoplastic polymers each having different viscosities and wherein the mixture has an interfacial tension from about 0.5 to about 20 mN/m, and wherein the mixture comprises a portion of the fiber surface. The fibers may include from 40-98 percent of a polyolefin continuous phase and from 2 to 60 weight percent of an amorphous thermoplast dispersed phase, such as polystyrene or polyamide.
(FR)
La présente invention concerne des fibres douces au toucher et des non tissés réalisés avec ces fibres. Ces fibres comprennent un système polymérique incompatible qui confère une qualité de douceur au toucher. Les fibres contiennent un mélange d'au moins deux polymères thermoplastiques ayant respectivement des viscosités différentes, ce mélange ayant une tension interfaciale comprise environ entre 0,5 et 20 mN/m. Ce mélange contient une partie de la surface de fibre. Les fibres contiennent de 40 à 98 % d'une phase continue de polyoléfine et de 2 à 60 % en poids d'une phase dispersée thermoplastique, telle du polystyrène ou du polyamide.
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