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1. US20090220785 - METHOD AND DEVICE FOR FORMING MICROSTRUCTURED FIBRE

Office
United States of America
Application Number 12090011
Application Date 12.10.2006
Publication Number 20090220785
Publication Date 03.09.2009
Publication Kind A1
IPC
D02G 3/22
DTEXTILES; PAPER
02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
GCRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS
3Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
22Yarns or threads characterised by constructional features
B29C 47/30
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
47Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
08Component parts, details or accessories; Auxiliary operations
12Extrusion nozzles or dies
30Multi-port extrusion nozzles
C03B 37/02
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01Manufacture of glass fibres or filaments
02by drawing or extruding
Applicants ADELAIDE RESEARCH &; INNOVATION PTY LTD
Inventors Monro Tanya
Ebendorff-Heidepriem Heike
Davies Philip
Agents GREENBLUM &; BERNSTEIN, P.L.C.
Title
(EN) METHOD AND DEVICE FOR FORMING MICROSTRUCTURED FIBRE
Abstract
(EN)

A die and method for extruding an extrudable material to form an extruded member is described. In one embodiment, the die comprises a barrier member comprising a plurality of feed channels that extend through the barrier member. Furthermore, the die incorporates a passage forming member extending from the barrier member substantially in the direction of extrusion. The feed channels are arranged with respect to the passage forming member to allow the extrudable material to substantially flow about the passage forming member to form a corresponding passage in the extruded member.