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1. WO2020112423 - STITCHED CHOPPED STRAND MAT

Publication Number WO/2020/112423
Publication Date 04.06.2020
International Application No. PCT/US2019/062087
International Filing Date 19.11.2019
IPC
D04H 1/4242 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
4209Inorganic fibres
4242Carbon fibres
D04H 1/52 2006.01
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
52by applying or inserting filamentary binding elements
D04H 1/64 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
58by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
64the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
D04H 3/002 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
3Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
002Inorganic yarns or filaments
D04H 3/115 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
3Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
08characterised by the method of strengthening or consolidating
10with bonds between yarns or filaments made mechanically
115by applying or inserting filamentary binding elements
D04H 3/12 2006.01
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
3Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
08characterised by the method of strengthening or consolidating
12with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
CPC
B29C 70/502
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
40Shaping or impregnating by compression
50for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
502by first forming a mat composed of short fibres
D04H 1/4242
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
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
4209Inorganic fibres
4242Carbon fibres
D04H 1/52
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
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
52by applying or inserting filamentary binding elements
D04H 1/64
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
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
58by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
64the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
D04H 3/002
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
3Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
002Inorganic yarns or filaments
D04H 3/115
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
3Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
08characterised by the method of strengthening or consolidating
10with bonds between yarns or filaments made mechanically
115by applying or inserting filamentary binding elements
Applicants
  • OCV INTELLECTUAL CAPITAL, LLC [US]/[US]
Inventors
  • BERNING, Thomas, M.
Agents
  • RAULERSON, Billy, C.
Priority Data
62/771,33626.11.2018US
62/799,20531.01.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STITCHED CHOPPED STRAND MAT
(FR) MAT À FILS COUPÉS COUSUS
Abstract
(EN)
A carbon stitched chopped strand mat has properties that make it a suitable reinforcement in many composite materials, including in sheet molding compounds. The mat is made by spreading a carbon fiber tow to form a carbon ribbon, applying a coating to the ribbon, splitting the ribbon into carbon fiber bundles, drying the bundles, winding the bundles to form a multi-end roving, simultaneously chopping the ends of the roving to form chopped carbon fibers, randomly depositing the fibers within a defined space, applying a carrier to the space and stitching the carrier and fibers together.
(FR)
Un mat à fils de carbone coupés, cousus présente des propriétés qui font de lui un renforcement approprié dans de nombreux matériaux composites, y compris dans des composés de moulage en feuille. La conception du mat consiste à étaler un câble de filaments de fibres de carbone pour former un ruban de carbone, appliquer un revêtement sur le ruban, diviser le ruban en faisceaux de fibres de carbone, sécher les faisceaux, enrouler les faisceaux pour former un stratifil multi-extrémité, couper simultanément les extrémités du stratifil pour obtenir des fibres de carbone coupées, déposer de manière aléatoire les fibres dans un espace défini, disposer un support dans ledit espace et coudre ensemble le support et les fibres.
Latest bibliographic data on file with the International Bureau