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1. (CA2071918) THERMALLY BONDABLE FABRICS, PREPARATION AND USE

Office : Canada
Application Number: 2071918 Application Date: 29.10.1990
Publication Number: 2071918 Publication Date: 16.05.1991
Grant Number: Grant Date: 25.02.2003
Publication Kind : C
Prior PCT appl.: Application Number:PCTUS1990006267 ; Publication Number: Click to see the data
IPC:
C08L 23/06
B01F 13/00
C08L 23/04
C08L 23/08
C08L 23/18
D01F 6/46
D04H 3/16
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
04
Homopolymers or copolymers of ethene
06
Polyethene
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
F
MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
13
Other mixers; Mixing plant, including combinations of dissimilar mixers
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
04
Homopolymers or copolymers of ethene
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
04
Homopolymers or copolymers of ethene
08
Copolymers of ethene
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
18
Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
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
3
Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
08
characterised by the method of strengthening or consolidating
14
with bonds between thermoplastic yarns or filaments produced by welding
16
with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
CPC:
D01F 6/46
B01F 13/0059
C08L 23/0815
C08L 2203/12
C08L 2205/02
C08L 2205/025
D01F 6/04
D04H 3/16
Y10T 428/298
Applicants: THE DOW CHEMICAL COMPANY
Inventors:
Priority Data: 428,280 27.10.1989 US
Title: (EN) THERMALLY BONDABLE FABRICS, PREPARATION AND USE
(FR) TOILES THERMOSOUDABLES, PREPARATION ET UTILISATION
Abstract:
(EN)



Thermally bonded fabrics having high normalized tensile strength are
disclosed. Blends of high molecular weight linear
ethylene polymers and low molecular weight linear ethylene polymers provide
improved staple fiber-forming capabilities over
that found with either polymer taken alone. Staple fibers formed from the
blends have Q values above 4.5 and/or I10/I2 values
above 7. The staple fibers formed from the blends of high molecular weight
linear ethylene polymers and low molecular
weight linear ethylene polymers have a broader thermal bonding window than
either linear ethylene polymer taken alone.
At least one of the linear ethylene polymers useful for blending for forming
staple fiber can be a higher alpha-olefin in the
C3-C12 range, preferably in the C3-C8 range.


Also published as:
FI921867EP0497900JP3069915JPH05501287DE000069023665PT95727
KR1001401900000*AU1990067317DK0497900WO/1991/006600