KR100400380B1 - Process for preparing triple-wall duct filled with foaming layer and triple-wall duct produced by the same - Google Patents

Process for preparing triple-wall duct filled with foaming layer and triple-wall duct produced by the same Download PDF

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Publication number
KR100400380B1
KR100400380B1 KR1020030013447A KR20030013447A KR100400380B1 KR 100400380 B1 KR100400380 B1 KR 100400380B1 KR 1020030013447 A KR1020030013447 A KR 1020030013447A KR 20030013447 A KR20030013447 A KR 20030013447A KR 100400380 B1 KR100400380 B1 KR 100400380B1
Authority
KR
South Korea
Prior art keywords
triple
wall duct
foaming layer
same
preparing
Prior art date
Application number
KR1020030013447A
Other languages
Korean (ko)
Inventor
Yong Suk Lee
Original Assignee
Seowonpe Co Ltd
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 Seowonpe Co Ltd filed Critical Seowonpe Co Ltd
Priority to KR1020030013447A priority Critical patent/KR100400380B1/en
Application granted granted Critical
Publication of KR100400380B1 publication Critical patent/KR100400380B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: Provided is a triple-wall duct having reduced weight and improved durability compared to existing double or triple wall duct, as well as excellent molding and processing abilities. CONSTITUTION: The triple-wall duct is prepared by an apparatus for performing a process comprising forming a hollow profile from polyethylene resin through a main extrusion device; and, at the same time, filling a foaming layer produced from ethylene vinyl acetate copolymer inside the hollow part through an additional extrusion device.
KR1020030013447A 2003-03-04 2003-03-04 Process for preparing triple-wall duct filled with foaming layer and triple-wall duct produced by the same KR100400380B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020030013447A KR100400380B1 (en) 2003-03-04 2003-03-04 Process for preparing triple-wall duct filled with foaming layer and triple-wall duct produced by the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020030013447A KR100400380B1 (en) 2003-03-04 2003-03-04 Process for preparing triple-wall duct filled with foaming layer and triple-wall duct produced by the same

Publications (1)

Publication Number Publication Date
KR100400380B1 true KR100400380B1 (en) 2003-10-04

Family

ID=37422351

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020030013447A KR100400380B1 (en) 2003-03-04 2003-03-04 Process for preparing triple-wall duct filled with foaming layer and triple-wall duct produced by the same

Country Status (1)

Country Link
KR (1) KR100400380B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101260678B1 (en) 2011-02-01 2013-05-10 주식회사 서원 Manufacturing method and manufacturing device of high strength multiple-walled tube and the high strength multiple-walled tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101260678B1 (en) 2011-02-01 2013-05-10 주식회사 서원 Manufacturing method and manufacturing device of high strength multiple-walled tube and the high strength multiple-walled tube

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