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1. WO1999055942 - POLYOLEFIN STAPLE FIBER FOR THE PRODUCTION OF THERMALLY BONDED NONWOVEN WEB

Publication Number WO/1999/055942
Publication Date 04.11.1999
International Application No. PCT/IT1999/000109
International Filing Date 29.04.1999
Chapter 2 Demand Filed 12.11.1999
IPC
B32B 27/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
12next to a fibrous or filamentary layer
C08L 23/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
D01F 6/46 2006.01
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
FCHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof
44from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
46of polyolefins
D04H 1/42 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING 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
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
42characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
D04H 1/50 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING 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
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
44the fleeces or layers being consolidated by mechanical means, e.g. by rolling
50by treatment to produce shrinking, swelling, crimping or curling of fibres
D04H 1/54 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING 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
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
54by welding together the fibres, e.g. by partially melting or dissolving
CPC
B32B 27/12
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
12next to a fibrous or filamentary layer
C08L 2203/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2203Applications
12used for fibers
C08L 2207/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2207Properties characterising the ingredient of the composition
02Heterophasic composition
C08L 2207/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2207Properties characterising the ingredient of the composition
10Peculiar tacticity
12Syndiotactic polypropylene
C08L 23/0815
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04Homopolymers or copolymers of ethene
08Copolymers of ethene
0807Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
0815Copolymers of ethene with aliphatic 1-olefins
C08L 23/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
Applicants
  • MERAKLON S.P.A. [IT]/[IT] (AllExceptUS)
  • PINOCA, Leonardo [IT]/[IT] (UsOnly)
  • AMADIO, Giancarlo [IT]/[IT] (UsOnly)
  • OLIVIERI, Paolo [IT]/[IT] (UsOnly)
Inventors
  • PINOCA, Leonardo
  • AMADIO, Giancarlo
  • OLIVIERI, Paolo
Agents
  • BANCHETTI, Marina
Priority Data
RM98A00028129.04.1998IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) POLYOLEFIN STAPLE FIBER FOR THE PRODUCTION OF THERMALLY BONDED NONWOVEN WEB
(FR) FIBRE DISCONTINUE EN POLYOLEFINE POUR LA PRODUCTION DE TISSU NON-TISSE THERMOSOUDE
Abstract
(EN)
Polypropylene biconstituent staple fibers for the production of nonwoven web by 'thermal bonding', with improved properties of mechanical isotropy and softness, obtained from a polymer mixture substantially consisting of 85 - 99.9 % by weight of polypropylene homopolymer or of polypropylene copolymer of the type normally used for the production of thermally bondable fibers, and of 0.1 - 15 % by weight of polyethylene. The invention also concerns the thermally bonded nonwoven material obtained from the staple fibers, and laminate composite materials comprising a layer of such nonwoven web coupled to a polyolefin film.
(FR)
Cette invention se rapporte à des fibres discontinues biconstituées en polypropylène servant à la production de tissu non-tissé par liage thermique, avec amélioration des propriétés d'isotropie mécanique et de douceur, obtenues à partir d'un mélange polymère composé essentiellement de 85 à 99,9 % en poids d'homopolymère de polypropylène ou de copolymère de polypropylène du type généralement utilisé pour la production de fibres thermosoudables, et de 0,1 à 15 % en poids de polyéthylène. Cette invention concerne également le matériau non-tissé thermosoudé obtenu à partir de ces fibres discontinues et des matériaux composites stratifiés contenant une couche de ce tissu non-tissé couplé à un film de polyoléfine.
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