KR910700137A - 초고분자량 폴리에틸렌과 그의 제조방법 - Google Patents
초고분자량 폴리에틸렌과 그의 제조방법Info
- Publication number
- KR910700137A KR910700137A KR1019900701924A KR900701924A KR910700137A KR 910700137 A KR910700137 A KR 910700137A KR 1019900701924 A KR1019900701924 A KR 1019900701924A KR 900701924 A KR900701924 A KR 900701924A KR 910700137 A KR910700137 A KR 910700137A
- Authority
- KR
- South Korea
- Prior art keywords
- molecular weight
- sheet
- polyethylene
- high molecular
- weight polyethylene
- Prior art date
Links
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 title claims 12
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims 12
- 238000004519 manufacturing process Methods 0.000 title claims 5
- 239000004698 Polyethylene Substances 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 15
- 229920000573 polyethylene Polymers 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 3
- 239000004705 High-molecular-weight polyethylene Substances 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 229910010272 inorganic material Inorganic materials 0.000 claims 2
- 239000011147 inorganic material Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
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- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
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- B29C48/64—Screws with two or more threads
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- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
- B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
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- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
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- B29K2995/0088—Molecular weight
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
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- C10M2201/16—Carbon dioxide
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- C—CHEMISTRY; METALLURGY
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- C10M2205/0225—Ethene used as base material
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Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 폴리에틸렌 시이트 제조용 압출기의 스크류를 예시한 개요도이고,
제2A도와 제2B도는 압출성형기의 틀을 예시한 단면도이다.
Claims (22)
- 점도평균분자량 300,000내지 2,000,000의 초고분자량 폴리에틸렌을 포함하는 원료 폴리에틸렌을 시이트 상으로 압출성형시켜 두께 100 내지 300㎛의 시이트상 물질로 성형시킨 것을 특징으로 하는 초고분자량 폴리에틸렌 시이트.
- 제1항에 있어서, 상기 원료 폴리에틸렌은 점도평균분자량800,000 내지 1,500,000의 초고본자량 폴리에틸렌을 포함하는 것을 특징으로 하는 시이트.
- 제1항에 있어서, 상기 원료 폴리에틸렌은 고분자량의 폴리에틸렌과 저분자량의 폴리에틸렌으로부터 선택된 적어도 두 종류의 폴리에틸렌을 포함하는 것을 특징으로 하는 시이트.
- 제1항에 있어서, 상기 원료 폴리에틸렌은 부가적으로 무기물질을 포함하는 것을 특징으로 하는 시이트.
- 제1항에 있어서의 시이트는 표면에 미세요철이 형성된 것을 특징으로 하는 시이트.
- 점도평균분자량 300,000 내지 2,000,000의 초고분자량 폴리에틸렌을 포함하는 원료 폴리에틸렌을 스크류 압출기를 이요하여 시이트상으로 압출 성형시키는데 있어서, 상기 스크류 플라이트 부분의 길이 L과 스크류 직경 D의 비율L/D이 20내지 40이고 코우트행거의 개구부 각도가 120 내지 70˚인 스크류 압출기를 이용하여 상기 원료 폴리에틸렌을 시이트 상으로 압출시켜 두께 100 내지 300㎛의 폴리에틸렌 시이트를 제조하는 것임을 특징으로 하는 초고분자량 폴리에틸렌 시이트 제조방법.
- 제6항에 있어서, 상기 원료 폴리에틸렌은 고분자량의 폴리에틸렌과 저분자량의 폴리에틸렌으로 부터 선택된 적어도 두 종류의 폴리에틸렌을 포함하는 것임을 특징으로 하는 방법.
- 제6항에 있어서, 상기 원료 폴리에틸렌은 부가적으로 무기 물질을 포함하는 것임을 특징으로 하는 방법.
- 제6항에 있어서의 방법은 상기 원료 폴리에틸렌을 시이트상으로 압출시킴과 동시에 상기 시이트의 압출방향에 대해서 일축방향으로 연신시키는 것임을 특징으로 하는 방법.
- 제6항에 있어서의 방법은 상기 스크류 압출기로부터 압출시킨 시이트를 가열된 두개의 로울러로 압력을 가하면서 상기 시이트의 압출방향에 대해 일축방향으로 연신시키는 것임을 특징으로 하는 방법.
- 제10항에 있어서, 상기 로울러의 표면에는 미세요철이 형성되어 있는 것임을 특징으로 하는 방법.
- 제6항에 있어서, 상기 스크류 압출기로부터 압출된 시이트를 압착시키는 한쌍의 로울러는 서로 다른 온도를 갖는 것임을 특징으로 하는 방법.
- 제6항에 있어서, 상기 압출성형은 1.2 내지 2.0의 압출비율범위에서 실시됨을 특징으로 하는 방법.
- 제6항에 있어서, 상기 스크류 압출기의 스크류는 피이드부, 압축부 및 미터링부를 포함하는 것을 특징으로 하는 방법.
- 제13항에 있어서, 상기 피이드부, 압축부 및 미터링부의 비율은 5 내지 8 : 7 내지 8 : 4임을 특징으로 하는 방법.
- 제13항에 있어서, 상기 스크류 압출기의 미터링부에는 고선단부가 설치된 것임을 특징으로 하는 방법.
- 제1항 내지 제5항 중 어느 하나의 항에 있어서의 초고분자량 폴리에틸렌을 소정의 형상으로 제조하여 얻어지는 것임을 특징으로 하는 초고분자량 폴리에틸렌을 포함하는 습동부재.
- 제1항 내지 제5항 중 어느 하나의 항에 있어서의 초고분자량 폴리에틸렌을 소정의 형상으로 제조하여 얻어지는 것임을 특징으로 하는 초고분자량 폴리에틸렌을 포함하는 자기테이프용 테이프 받침대.
- 제18항에 있어서, 상기 초고분자량 폴리에틸렌 시이트는 굴곡면을 갖는 것임을 특징으로 하는 테이프 받침대.
- 제18항에 있어서의 테이프 받침대는 상기 초고분자량 폴리에틸렌 시이트를 소정의 형상으로 제조하여 얻어진 시이트를 비가열하게 스코어 절단기를 사용하여 소정의 형상으로 절단시킨 것임을 특징으로 하는 테이프 받침대.
- 제20항에 있어서, 상기 스크류 절단기 칼날의 말단부분 각도는 20 내지 90˚ 범위임을 특징으로 하는 테이프 받침대.
- 제20항에 있어서, 상기 스코어 절단기에 의해 절단된 단면은 둥근형태임을 특징으로 하는 테이프 받침대.※참고사항:최초출원 내용에 의하여 공개하는 것임.
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KR1019980702319A KR0166946B1 (ko) | 1988-12-29 | 1998-03-28 | 자기테이프용 테이프 받침대 |
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PCT/JP1989/001311 WO1990007413A1 (en) | 1988-12-29 | 1989-12-27 | Ultrahigh-molecular polyethylene sheet and production thereof |
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DE68928883T2 (de) * | 1988-09-28 | 1999-08-26 | Dai Nippon Insatsu K.K. | Spritzgussvorrichtung |
EP0410384B1 (en) * | 1989-07-28 | 1995-04-05 | Nippon Oil Co. Ltd. | Process for the continuous production of high-strength and high-modulus polyethylene material |
JP3431706B2 (ja) * | 1994-12-16 | 2003-07-28 | 新日本石油化学株式会社 | 積層体・不織布または織布並びにそれらを用いた強化積層体 |
US6054086A (en) * | 1995-03-24 | 2000-04-25 | Nippon Petrochemicals Co., Ltd. | Process of making high-strength yarns |
US6117924A (en) * | 1996-10-22 | 2000-09-12 | Crane Plastics Company Limited Partnership | Extrusion of synthetic wood material |
US5989725A (en) * | 1997-01-16 | 1999-11-23 | Tenneco Packaging | Clear high molecular weight film |
US6083611A (en) * | 1997-11-12 | 2000-07-04 | Tenneco Packaging, Inc. | Roll wrap film |
US6454983B1 (en) * | 1998-12-18 | 2002-09-24 | Eastman Chemical Company | Single screw extrusion of polymers |
US6271291B1 (en) | 1998-12-18 | 2001-08-07 | Eastman Chemical Company | Extrudable masterbatch |
JP4514976B2 (ja) * | 2000-07-24 | 2010-07-28 | 富士フイルム株式会社 | 溶液製膜用流延ダイ、及び溶液製膜方法 |
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-
1989
- 1989-12-27 DE DE68926342T patent/DE68926342T2/de not_active Expired - Fee Related
- 1989-12-27 WO PCT/JP1989/001311 patent/WO1990007413A1/ja active IP Right Grant
- 1989-12-27 EP EP90901033A patent/EP0402484B1/en not_active Expired - Lifetime
- 1989-12-27 KR KR1019900701924A patent/KR0166945B1/ko not_active IP Right Cessation
-
1990
- 1990-07-31 US US07/548,934 patent/US5110663A/en not_active Expired - Fee Related
-
1998
- 1998-03-28 KR KR1019980702319A patent/KR0166946B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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DE68926342D1 (de) | 1996-05-30 |
US5110663A (en) | 1992-05-05 |
KR0166945B1 (ko) | 1999-03-20 |
WO1990007413A1 (en) | 1990-07-12 |
EP0402484B1 (en) | 1996-04-24 |
DE68926342T2 (de) | 1996-11-21 |
EP0402484A1 (en) | 1990-12-19 |
EP0402484A4 (en) | 1992-04-22 |
KR0166946B1 (ko) | 1999-05-01 |
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