KR100552023B1 - 폴리옥시메틸렌 수지제 램프 - Google Patents
폴리옥시메틸렌 수지제 램프 Download PDFInfo
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- KR100552023B1 KR100552023B1 KR1020047010001A KR20047010001A KR100552023B1 KR 100552023 B1 KR100552023 B1 KR 100552023B1 KR 1020047010001 A KR1020047010001 A KR 1020047010001A KR 20047010001 A KR20047010001 A KR 20047010001A KR 100552023 B1 KR100552023 B1 KR 100552023B1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0895—Manufacture of polymers by continuous processes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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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
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- 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
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/12—Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position otherwise than during transducing operation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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
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- 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
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- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
Abstract
Description
Claims (8)
- (A) 폴리옥시메틸렌 수지 100 중량부, 및(B) (b-1) 폴리올레핀 수지, 및 (b-2) 이소시아네이트 화합물과 폴리알킬렌옥시드를 중합하여 얻어지는 중합체로 이루어지는 군에서 선택되는 1종 이상의 고분자 윤활제 0.1 내지 10 중량부를 포함하는 수지 조성물을 성형하여 얻어지는 하드 디스크용 램프.
- (A) 폴리옥시메틸렌 수지 100 중량부,(B) (b-1) 폴리올레핀 수지, 및 (b-2) 이소시아네이트 화합물과 폴리알킬렌옥시드를 중합하여 얻어지는 중합체로 이루어지는 군에서 선택되는 1종 이상의 고분자 윤활제 0.1 내지 10 중량부, 및(C) 평균 입경이 30 ㎛ 이하인 무기 충전제 0.5 내지 50 중량부, 및(또는)(D) 윤활제 0.1 내지 10 중량부를 포함하는 수지 조성물을 성형하여 얻어지는 하드 디스크용 램프.
- 제1항 또는 제2항에 있어서, (b-1) 폴리올레핀 수지가 고압법 저밀도 폴리에틸렌, 직쇄상 저밀도 폴리에틸렌 및 초저밀도 폴리에틸렌으로 이루어지는 군에서 선택되는 폴리에틸렌, 에틸렌-프로필렌 공중합체, 에틸렌-부텐 공중합체, 에틸렌-옥텐 공중합체이고, 0.5 내지 150 g/10 분 범위의 용융 유속을 가지며, (b-2) 이소 시아네이트 화합물과 폴리알킬렌옥시드를 중합하여 얻어지는 중합체가 10,000 내지 500,000의 중량 평균 분자량을 갖는 램프.
- 제1항 또는 제2항에 있어서, (A) 폴리옥시메틸렌 수지가 공단량체량 0.1 내지 3 몰%의 공중합체인 램프.
- 제2항에 있어서, (C) 무기 충전제가, 체적 평균 입경이 30 ㎛ 이하인 구상으로 표면이 평활한 충전제인 램프.
- 제2항에 있어서, (C) 무기 충전제가, 체적 평균 입경이 10 ㎛ 이하인 침상, 입자상 또는 판상의 충전제인 램프.
- 제2항에 있어서, (D) 윤활제가 알코올, 지방산, 알코올과 지방산과의 에스테르, 디카르복실산과 알코올과의 에스테르, 폴리옥시알킬렌글리콜, 및 평균 중합도 10 내지 500의 올레핀 화합물로 이루어지는 군에서 선택되는 1종 이상인 램프.
- 제1항 또는 제2항에 있어서, 램프가 할로겐계 용제, 지방족 탄화수소, 방향족 탄화수소, 알코올, 액화 탄산 가스, 계면 활성제를 함유하는 물 및 순수한 물로 이루어지는 군에서 선택되는 1종 이상의 용제로 세정한 후에 사용되는 램프.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2001-00391258 | 2001-12-25 | ||
JP2001391258 | 2001-12-25 | ||
JP2002223034 | 2002-07-31 | ||
JPJP-P-2002-00223034 | 2002-07-31 | ||
PCT/JP2002/013322 WO2003055945A1 (fr) | 2001-12-25 | 2002-12-19 | Rampe constituee de resine polyoxymethylene |
Publications (2)
Publication Number | Publication Date |
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KR20040071752A KR20040071752A (ko) | 2004-08-12 |
KR100552023B1 true KR100552023B1 (ko) | 2006-02-14 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020047010001A KR100552023B1 (ko) | 2001-12-25 | 2002-12-19 | 폴리옥시메틸렌 수지제 램프 |
Country Status (8)
Country | Link |
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US (2) | US7256966B2 (ko) |
JP (1) | JP3756913B2 (ko) |
KR (1) | KR100552023B1 (ko) |
CN (1) | CN1305959C (ko) |
AU (1) | AU2002357622A1 (ko) |
DE (1) | DE10297570B4 (ko) |
TW (1) | TWI263658B (ko) |
WO (1) | WO2003055945A1 (ko) |
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DE10162903B4 (de) * | 2000-12-26 | 2009-04-30 | Asahi Kasei Kabushiki Kaisha | Polyoxymethylenharzzusammensetzung und daraus hergestellte Formkörper |
US6580585B2 (en) * | 2001-06-12 | 2003-06-17 | Hitachi Global Storage Technologies, The Netherlands B.V. | Magnetic disk drive with load/unload structure having lubricant reservoir |
EP1286338A3 (en) * | 2001-07-26 | 2007-07-11 | Matsushita Electric Industrial Co., Ltd. | Head supporting device and disk drive unit using the same |
CN1305959C (zh) * | 2001-12-25 | 2007-03-21 | 旭化成化学株式会社 | 由聚甲醛树脂制成的斜块 |
-
2002
- 2002-12-19 CN CNB028260422A patent/CN1305959C/zh not_active Expired - Fee Related
- 2002-12-19 US US10/497,963 patent/US7256966B2/en not_active Expired - Lifetime
- 2002-12-19 JP JP2003556469A patent/JP3756913B2/ja not_active Expired - Lifetime
- 2002-12-19 AU AU2002357622A patent/AU2002357622A1/en not_active Abandoned
- 2002-12-19 KR KR1020047010001A patent/KR100552023B1/ko active IP Right Grant
- 2002-12-19 DE DE10297570T patent/DE10297570B4/de not_active Expired - Fee Related
- 2002-12-19 WO PCT/JP2002/013322 patent/WO2003055945A1/ja active Application Filing
- 2002-12-24 TW TW091137182A patent/TWI263658B/zh not_active IP Right Cessation
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2007
- 2007-07-09 US US11/775,165 patent/US7821740B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101154490B1 (ko) | 2010-03-29 | 2012-06-14 | 민 아이크 테크놀로지 씨오., 엘티디. | 내구성 폴리옥시메틸렌 조성물 |
US8759431B2 (en) | 2010-03-29 | 2014-06-24 | Min Aik Technology Co., Ltd. | Durable polyoxymethylene composition |
Also Published As
Publication number | Publication date |
---|---|
JP3756913B2 (ja) | 2006-03-22 |
TWI263658B (en) | 2006-10-11 |
DE10297570B4 (de) | 2008-02-21 |
CN1608108A (zh) | 2005-04-20 |
WO2003055945A1 (fr) | 2003-07-10 |
JPWO2003055945A1 (ja) | 2005-05-12 |
US7821740B2 (en) | 2010-10-26 |
TW200301284A (en) | 2003-07-01 |
US20070253113A1 (en) | 2007-11-01 |
AU2002357622A1 (en) | 2003-07-15 |
DE10297570T5 (de) | 2005-01-27 |
CN1305959C (zh) | 2007-03-21 |
US20050088782A1 (en) | 2005-04-28 |
US7256966B2 (en) | 2007-08-14 |
KR20040071752A (ko) | 2004-08-12 |
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