FILM EXTRUSION DIE

PROBLEM TO BE SOLVED: To provide a film extrusion die for obtaining an extrudate having a uniform crystal structure or state by reducing a residence time of a polymer in the die. SOLUTION: A side feed throttle die 10 has a polymer charging port 12, a polymer supply channel 14 and a polymer metering...

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1. Verfasser:	DAVIES BARRIE L
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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creator	DAVIES BARRIE L
description	PROBLEM TO BE SOLVED: To provide a film extrusion die for obtaining an extrudate having a uniform crystal structure or state by reducing a residence time of a polymer in the die. SOLUTION: A side feed throttle die 10 has a polymer charging port 12, a polymer supply channel 14 and a polymer metering air gap 16 for communicating with each other via a fluid. A gap regulating plate 22 is interposed between a first plate 18 and a second plate 20 for forming the gap 16. In this case, a sectional area A2 of the channel 14 at a position near the port 12 is larger than a sectional area A3 at a position far from the port 12. A length l2 of a land of the gap 16 at the position near the port 12 is larger than l3 that of a land at a far distance from the port 12.
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SOLUTION: A side feed throttle die 10 has a polymer charging port 12, a polymer supply channel 14 and a polymer metering air gap 16 for communicating with each other via a fluid. A gap regulating plate 22 is interposed between a first plate 18 and a second plate 20 for forming the gap 16. In this case, a sectional area A2 of the channel 14 at a position near the port 12 is larger than a sectional area A3 at a position far from the port 12. A length l2 of a land of the gap 16 at the position near the port 12 is larger than l3 that of a land at a far distance from the port 12.</description><edition>7</edition><language>eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20011023&DB=EPODOC&CC=JP&NR=2001293768A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20011023&DB=EPODOC&CC=JP&NR=2001293768A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DAVIES BARRIE L</creatorcontrib><title>FILM EXTRUSION DIE</title><description>PROBLEM TO BE SOLVED: To provide a film extrusion die for obtaining an extrudate having a uniform crystal structure or state by reducing a residence time of a polymer in the die. SOLUTION: A side feed throttle die 10 has a polymer charging port 12, a polymer supply channel 14 and a polymer metering air gap 16 for communicating with each other via a fluid. A gap regulating plate 22 is interposed between a first plate 18 and a second plate 20 for forming the gap 16. In this case, a sectional area A2 of the channel 14 at a position near the port 12 is larger than a sectional area A3 at a position far from the port 12. 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SOLUTION: A side feed throttle die 10 has a polymer charging port 12, a polymer supply channel 14 and a polymer metering air gap 16 for communicating with each other via a fluid. A gap regulating plate 22 is interposed between a first plate 18 and a second plate 20 for forming the gap 16. In this case, a sectional area A2 of the channel 14 at a position near the port 12 is larger than a sectional area A3 at a position far from the port 12. A length l2 of a land of the gap 16 at the position near the port 12 is larger than l3 that of a land at a far distance from the port 12.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title	FILM EXTRUSION DIE
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