WO2004076151A3 - Process and an extrusion die for eliminating surface melt fracture during extrusion of thermoplastic polymers - Google Patents

Process and an extrusion die for eliminating surface melt fracture during extrusion of thermoplastic polymers Download PDF

Info

Publication number
WO2004076151A3
WO2004076151A3 PCT/EP2004/001772 EP2004001772W WO2004076151A3 WO 2004076151 A3 WO2004076151 A3 WO 2004076151A3 EP 2004001772 W EP2004001772 W EP 2004001772W WO 2004076151 A3 WO2004076151 A3 WO 2004076151A3
Authority
WO
WIPO (PCT)
Prior art keywords
melt fracture
extrusion
fracture during
thermoplastic polymers
surface melt
Prior art date
Application number
PCT/EP2004/001772
Other languages
French (fr)
Other versions
WO2004076151A2 (en
Inventor
Kulikov Oleg Koulikov
Klaus Hornung
Original Assignee
Kulikov Oleg Koulikov
Klaus Hornung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kulikov Oleg Koulikov, Klaus Hornung filed Critical Kulikov Oleg Koulikov
Priority to EP04713535A priority Critical patent/EP1606095A2/en
Publication of WO2004076151A2 publication Critical patent/WO2004076151A2/en
Publication of WO2004076151A3 publication Critical patent/WO2004076151A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003—Materials, coating or lining therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped

Abstract

Process and apparatus for substantially eliminating surface melt fracture during extrusion of a thermoplastic polymer such as a molten linear low density polyethylene, by using a die (1, 4) having an elastic coating (2, 3, 5) on its inner surface adjacent the die exit.
PCT/EP2004/001772 2003-02-28 2004-02-23 Process and an extrusion die for eliminating surface melt fracture during extrusion of thermoplastic polymers WO2004076151A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04713535A EP1606095A2 (en) 2003-02-28 2004-02-23 Process and an extrusion die for eliminating surface melt fracture during extrusion of thermoplastic polymers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10308909A DE10308909A1 (en) 2003-02-28 2003-02-28 Process and extrusion die for eliminating surface melt fractures in the extrusion of thermoplastic polymers
DE10308909.8 2003-02-28

Publications (2)

Publication Number Publication Date
WO2004076151A2 WO2004076151A2 (en) 2004-09-10
WO2004076151A3 true WO2004076151A3 (en) 2005-01-27

Family

ID=32842053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/001772 WO2004076151A2 (en) 2003-02-28 2004-02-23 Process and an extrusion die for eliminating surface melt fracture during extrusion of thermoplastic polymers

Country Status (3)

Country Link
EP (1) EP1606095A2 (en)
DE (1) DE10308909A1 (en)
WO (1) WO2004076151A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2272709C2 (en) * 2004-01-21 2006-03-27 Олег Леонидович Куликов Method of molding of thermoplastic polymeric material, the device for its realization and the composition of the thermoplastic polymeric material
EP2519395A1 (en) 2009-12-30 2012-11-07 Dow Global Technologies LLC Method for extruding polymer
BR112013016655B1 (en) 2010-12-30 2019-12-31 Dow Global Technologies Llc die assembly for extruding a polymeric coating onto a wire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403476A (en) * 1944-08-08 1946-07-09 Du Pont Extrusion apparatus
US4615858A (en) * 1985-05-16 1986-10-07 Mobil Oil Corporation Method and apparatus producing decorative melt fracture patterns on polymeric products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403476A (en) * 1944-08-08 1946-07-09 Du Pont Extrusion apparatus
US4615858A (en) * 1985-05-16 1986-10-07 Mobil Oil Corporation Method and apparatus producing decorative melt fracture patterns on polymeric products

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, vol. 52, 1994, pages 249 - 261, XP009038937 *
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, vol. 68, 1997, pages 271 - 290, XP002303009 *

Also Published As

Publication number Publication date
EP1606095A2 (en) 2005-12-21
WO2004076151A2 (en) 2004-09-10
DE10308909A1 (en) 2004-09-09

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