KR830006002A - 용융협(狹)분자량 분포 선형 에틸렌 혼성중합체를 압출시키는 방법 - Google Patents

용융협(狹)분자량 분포 선형 에틸렌 혼성중합체를 압출시키는 방법 Download PDF

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Publication number
KR830006002A
KR830006002A KR1019810002793A KR810002793A KR830006002A KR 830006002 A KR830006002 A KR 830006002A KR 1019810002793 A KR1019810002793 A KR 1019810002793A KR 810002793 A KR810002793 A KR 810002793A KR 830006002 A KR830006002 A KR 830006002A
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KR
South Korea
Prior art keywords
molecular weight
weight distribution
lead
linear ethylene
distribution method
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KR1019810002793A
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English (en)
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KR840000272B1 (ko
Inventor
로보트 블레이크스리 3세 데오도르
Original Assignee
에드워드 지. 글리어
유니온 카바이드 코포레이션
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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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • 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
    • 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
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0633—LDPE, i.e. low density polyethylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Organic Insulating Materials (AREA)
  • Polymerization Catalysts (AREA)

Abstract

내용 없음

Description

용융협(挾)분자량 분포, 선형, 에틸렌 공중합체의 압출방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
도면 1 : 리드(lead)의 변화가 전이부분(transition section)의 초기에 일어나는 본 발명에 따른 압출나사(extruderscrew)의 정면도를 도시한 것이다.
도면 2 : 공급부분(feed section)과 계량부분(metering section) 사이의 리드 변화가 계량부분의 초기에 급격한 변화에의해 이루어지는, 본 발명의 두번째 구현을 도면1과 비슷하게 도시한것이다.
도면 3 : 유입부와 압출부 사이의 리드 변화가 변환부내에서의 급격한 변화로 이루어진, 본 발명의 세번째 태양을 보여주는 제1도와 거의 유사한 정면도.

Claims (2)

  1. 중합체를 도입시키는 공급부분(feed Section)을 가진 압출나사를 포함한 압출장치속에 과립 중합체를 통과시킨 다음 전이부분(transition)및 계량부분(metering)에 통과시킴을 특징으로하여 과립 저점도 협(狹) 분자량 분포 선형 에틸렌 중합체를 압출시키는 방법(단, 공급 부분내의 각 리그(lead)는 실질적으로 같고, 계량부분내의 각 리드는 실질적으로 같고 공급부분내의 각 리드는 계량부분내의 각 리드보다 5 내지 50%가 더 크다).
  2. 과립중합체가 에틸렌과 융해지수가 약0.1내지 약20인 탄소수 3내지 8의 하나이상 α올레핀의 혼성중합체인 상기 청구범위 1에 따른 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810002793A 1980-08-01 1981-07-31 용융 협(狹)분자량 분포, 선형, 에틸렌 공중합체의 압출방법 KR840000272B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US174542 1980-08-01
US06/174,542 US4310484A (en) 1980-08-01 1980-08-01 Method for extruding molten narrow molecular weight distribution, linear, ethylene copolymers

Publications (2)

Publication Number Publication Date
KR830006002A true KR830006002A (ko) 1983-09-17
KR840000272B1 KR840000272B1 (ko) 1984-03-13

Family

ID=22636544

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810002793A KR840000272B1 (ko) 1980-08-01 1981-07-31 용융 협(狹)분자량 분포, 선형, 에틸렌 공중합체의 압출방법

Country Status (11)

Country Link
US (1) US4310484A (ko)
EP (1) EP0045501B1 (ko)
JP (1) JPS57113046A (ko)
KR (1) KR840000272B1 (ko)
AU (1) AU7353881A (ko)
BR (1) BR8104945A (ko)
CA (1) CA1168414A (ko)
DE (1) DE3172529D1 (ko)
FI (1) FI812354L (ko)
NO (1) NO812489L (ko)
ZA (1) ZA814921B (ko)

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US4329313A (en) * 1980-11-12 1982-05-11 Union Carbide Corporation Apparatus and method for extruding ethylene polymers
US4405239A (en) * 1982-04-13 1983-09-20 Chung Chan I Energy efficient extruder screw
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Also Published As

Publication number Publication date
JPS57113046A (en) 1982-07-14
ZA814921B (en) 1982-07-28
AU7353881A (en) 1982-02-04
BR8104945A (pt) 1982-04-20
KR840000272B1 (ko) 1984-03-13
EP0045501B1 (en) 1985-10-02
DE3172529D1 (en) 1985-11-07
EP0045501A2 (en) 1982-02-10
FI812354L (fi) 1982-02-02
NO812489L (no) 1982-02-02
EP0045501A3 (en) 1983-01-19
US4310484A (en) 1982-01-12
CA1168414A (en) 1984-06-05

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