KR101853021B1 - 다공성 폴리우레탄 연마패드 및 이의 제조방법 - Google Patents
다공성 폴리우레탄 연마패드 및 이의 제조방법 Download PDFInfo
- Publication number
- KR101853021B1 KR101853021B1 KR1020170005301A KR20170005301A KR101853021B1 KR 101853021 B1 KR101853021 B1 KR 101853021B1 KR 1020170005301 A KR1020170005301 A KR 1020170005301A KR 20170005301 A KR20170005301 A KR 20170005301A KR 101853021 B1 KR101853021 B1 KR 101853021B1
- Authority
- KR
- South Korea
- Prior art keywords
- polishing pad
- pore
- pores
- urethane
- solid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- 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
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Abstract
Description
도 2는 실시예 2의 연마패드의 SEM 사진이다.
도 3은 비교예 1의 연마패드의 SEM 사진이다.
도 4는 실시예 1 및 2, 및 비교예 1 각각의 연마패드의 포어 입경 분포도이다.
비교예 1 | 비교예 2 | 실시예 1 | 실시예 2 | |
비중 (g/㎤) | 0.817 | 0.90 | 0.801 | 0.812 |
25 ℃에서의 경도 (Shore D) | 58 | 65 | 58 | 59 |
온도별 경도 (Shore D ) (30℃/50℃/70℃) |
58/53/49 | 63/60/56 | 57/53/46 | 59/55/49 |
인장강도 (N/㎟) | 22.4 | 22.8 | 21.1 | 21.0 |
신율 (%) | 190 | 76.3 | 185 | 180 |
평균 기공 크기 (㎛) | 49.5 | 14.4 | 21.4 | 15.0 |
기공 면적 비율 (%) | 45.5 | 38.8 | 41.7 | 40.7 |
기공 개수 (개) (가로 2cm × 세로 2cm × 높이 2cm) |
78 | 399 | 258 | 411 |
내전압 (Break Down Voltage) | 13 kV | 23.3 kV | 17.5 kV | 21.2kV |
산화규소(SiOx)의 연마율 (%) | 55 | 65 | 80 | 100 |
Claims (11)
- 우레탄계 프리폴리머 및 경화제를 포함하는 연마패드로서,
두께가 1.5 내지 2.5 mm이고, 평균 기공 직경이 10 내지 40 ㎛이며, 비중이 0.7 내지 0.9 g/㎤이고, 25 ℃에서의 표면경도가 50 내지 65 shore D이며, 인장 강도가 15 내지 25 N/㎟이고, 신율이 80 내지 250 %이며, 기공의 총 면적이 연마패드 총 면적을 기준으로 30 내지 60 %이고, 내전압이 14 내지 22 kV이며,
우레탄계 프리폴리머 100 중량부를 기준으로 0.5 내지 10 중량부의 고상 발포제를 포함하고,
상기 고상 발포제는 평균 입경이 10 내지 50 ㎛이며,
상기 연마패드가 제1기공 및 제2기공을 포함하고,
상기 제2기공 총 면적 중 5 내지 45 %를 차지하는 제2-1 기공의 입경이 제1기공의 평균 입경보다 5 ㎛ 이상 작으며, 상기 제2기공 총 면적 중 5 내지 45 %를 차지하는 제2-2 기공의 입경이 제1기공의 평균 입경보다 5 ㎛ 이하로 큰, 다공성 폴리우레탄 연마패드.
- 삭제
- 삭제
- 제1항에 있어서,
상기 다공성 폴리우레탄 연마패드가 반응속도 조절제를 더 포함하고,
상기 제1기공은 고상 발포제로부터 형성된 것이고,
상기 제2기공은 불활성 기체로부터 형성된 것인, 다공성 폴리우레탄 연마패드.
- 제4항에 있어서,
상기 반응속도 조절제가 트리에틸렌 디아민, 디메틸 에탄올 아민, 테트라메틸 부탄 디아민, 2-메틸-트리에틸렌 디아민, 디메틸 사이클로헥실 아민, 트리에틸 아민, 트리이소프로판올 아민, 1,4-디아자바이사이클로(2,2,2)옥탄, 비스(2-메틸아미노에틸) 에테르, 트리메틸아미노에틸에탄올 아민, N,N,N,N,N''-펜타메틸디에틸렌트리아민, 디메틸아미노에틸 아민, 디메틸아미노프로필 아민, 벤질디메틸 아민, N-에틸모르폴린, N,N-디메틸아미노에틸모르폴린, N,N-디메틸사이클로헥실 아민, 2-메틸-2-아자노보네인, 디부틸틴 디라우레이트, 스태너스 옥토에이트, 디부틸틴 디아세테이트, 디옥틸틴 디아세테이트, 디부틸틴 말리에이트, 디부틸틴 디-2-에틸헥사노에이트 및 디부틸틴 디머캅타이드로 이루어진 군으로부터 선택된 1종 이상을 포함하는, 다공성 폴리우레탄 연마패드.
- 삭제
- 제1항에 있어서,
상기 우레탄계 프리폴리머가 이소시아네이트 및 폴리올을 포함하고,
상기 경화제가 아민 화합물, 알코올 화합물 또는 이들의 혼합물을 포함하는, 다공성 폴리우레탄 연마패드.
- (1) 우레탄계 프리폴리머, 경화제 및 고상 발포제를 포함하는 혼합물을 몰드 내에 주입하여 성형하는 단계; 및
(2) 상기 혼합물을 경화시키는 단계를 포함하는 연마패드의 제조방법으로서,
상기 고상 발포제가 우레탄계 프리폴리머 100 중량부를 기준으로 0.5 내지 10 중량부의 함량으로 포함되고,
상기 연마패드는 두께가 1.5 내지 2.5 mm이고, 평균 기공 직경이 10 내지 40 ㎛이며, 비중이 0.7 내지 0.9 g/㎤이고, 25 ℃에서의 표면경도가 50 내지 65 shore D이며, 인장 강도가 15 내지 25 N/㎟이고, 신율이 80 내지 250 %이며, 기공의 총 면적이 연마패드 총 면적을 기준으로 30 내지 60 %이고, 내전압이 14 내지 22 kV이고,
상기 고상 발포제는 평균 입경이 10 내지 50 ㎛이며,
상기 연마패드가 제1기공 및 제2기공을 포함하고,
상기 제2기공 총 면적 중 5 내지 45 %를 차지하는 제2-1 기공의 입경이 제1기공의 평균 입경보다 5 ㎛ 이상 작으며, 상기 제2기공 총 면적 중 5 내지 45 %를 차지하는 제2-2 기공의 입경이 제1기공의 평균 입경보다 5 ㎛ 이하로 큰, 다공성 폴리우레탄 연마패드의 제조방법.
- 제8항에 있어서,
상기 단계 (1)에서 상기 혼합물의 몰드 내 주입시 몰드 내에 불활성 가스를 투입하고,
상기 불활성 가스가 상기 혼합물 총 부피를 기준으로 20 내지 35 %의 부피로 투입되는, 다공성 폴리우레탄 연마패드의 제조방법.
- 제9항에 있어서,
상기 혼합물이 반응속도 조절제를 더 포함하고,
상기 반응속도 조절제가 3차 아민계 화합물 및 유기금속계 화합물로 이루어진 군으로부터 선택된 1종 이상인, 다공성 폴리우레탄 연마패드의 제조방법.
- 제10항에 있어서,
상기 반응속도 조절제가 트리에틸렌 디아민, 디메틸 에탄올 아민, 테트라메틸 부탄 디아민, 2-메틸-트리에틸렌 디아민, 디메틸 사이클로헥실 아민, 트리에틸 아민, 트리이소프로판올 아민, 1,4-디아자바이사이클로(2,2,2)옥탄, 비스(2-메틸아미노에틸) 에테르, 트리메틸아미노에틸에탄올 아민, N,N,N,N,N''-펜타메틸디에틸렌트리아민, 디메틸아미노에틸 아민, 디메틸아미노프로필 아민, 벤질디메틸 아민, N-에틸모르폴린, N,N-디메틸아미노에틸모르폴린, N,N-디메틸사이클로헥실 아민, 2-메틸-2-아자노보네인, 디부틸틴 디라우레이트, 스태너스 옥토에이트, 디부틸틴 디아세테이트, 디옥틸틴 디아세테이트, 디부틸틴 말리에이트, 디부틸틴 디-2-에틸헥사노에이트 및 디부틸틴 디머캅타이드로 이루어진 군으로부터 선택된 1종 이상을 포함하는, 다공성 폴리우레탄 연마패드의 제조방법.
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KR1020170005301A KR101853021B1 (ko) | 2017-01-12 | 2017-01-12 | 다공성 폴리우레탄 연마패드 및 이의 제조방법 |
JP2019537816A JP6991224B2 (ja) | 2017-01-12 | 2018-01-09 | 多孔質ポリウレタン研磨パッドおよびその作製方法 |
CN201880006888.6A CN110191781B (zh) | 2017-01-12 | 2018-01-09 | 多孔性聚胺酯抛光垫及其制备方法 |
US16/462,180 US11325222B2 (en) | 2017-01-12 | 2018-01-09 | Porous polyurethane polishing pad and method for manufacturing same |
PCT/KR2018/000415 WO2018131868A1 (ko) | 2017-01-12 | 2018-01-09 | 다공성 폴리우레탄 연마패드 및 이의 제조방법 |
TW107101073A TWI707744B (zh) | 2017-01-12 | 2018-01-11 | 多孔性聚胺甲酸酯拋光墊及其製備方法 |
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2018
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- 2018-01-09 US US16/462,180 patent/US11325222B2/en active Active
- 2018-01-09 WO PCT/KR2018/000415 patent/WO2018131868A1/ko active Application Filing
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US11325222B2 (en) | 2022-05-10 |
CN110191781B (zh) | 2021-05-07 |
TW201829123A (zh) | 2018-08-16 |
JP6991224B2 (ja) | 2022-01-12 |
TWI707744B (zh) | 2020-10-21 |
CN110191781A (zh) | 2019-08-30 |
WO2018131868A1 (ko) | 2018-07-19 |
JP2020506070A (ja) | 2020-02-27 |
US20190329376A1 (en) | 2019-10-31 |
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