KR20200118002A - 고흡수성 입자의 공압 운송 방법 - Google Patents
고흡수성 입자의 공압 운송 방법 Download PDFInfo
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- KR20200118002A KR20200118002A KR1020207020610A KR20207020610A KR20200118002A KR 20200118002 A KR20200118002 A KR 20200118002A KR 1020207020610 A KR1020207020610 A KR 1020207020610A KR 20207020610 A KR20207020610 A KR 20207020610A KR 20200118002 A KR20200118002 A KR 20200118002A
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/124—Treatment for improving the free-flowing characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
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- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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- 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 atoms other than carbon or hydrogen
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Abstract
Description
Claims (15)
- 고흡수성 입자의 공압 운반 방법으로서, 고흡수성 입자는 공압 운반 전에 수성 왁스 분산물과 혼합되고, 왁스는 유리 전이 온도가 적어도 65℃ 이고, 미처리 고흡수성 입자에 기초하여, 0.020 중량% 내지 0.20 중량% 의 왁스가 사용되는, 고흡수성 입자의 공압 운반 방법.
- 제 1 항에 있어서, 왁스는 유리 전이 온도가 적어도 80℃ 인 고흡수성 입자의 공압 운반 방법.
- 제 1 항 또는 제 2 항에 있어서, 고흡수성 입자에 기초하여, 0.035 중량% 내지 0.08 중량% 의 왁스가 사용되는 고흡수성 입자의 공압 운반 방법.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 왁스는 70 내지 95 mol% 의 적어도 하나의 에틸렌계 불포화 탄화수소와 5 내지 30 mol% 의 적어도 하나의 에틸렌계 불포화 카르복시산의 공중합체인 고흡수성 입자의 공압 운반 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서, 고흡수성 입자는 평균 입자 크기가 250 내지 500 ㎛ 인 고흡수성 입자의 공압 운반 방법.
- 제 1 항 내지 제 5 항 중 어느 한 항에 있어서, 고흡수성 입자는 평균 구형도 (ASPHT) 가 0.72 초과인 고흡수성 입자의 공압 운반 방법.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서, 공압 운반 동안 고흡수성 입자의 온도는 적어도 40℃ 이고, 왁스의 유리 전이 온도보다 적어도 20℃ 더 낮은 고흡수성 입자의 공압 운반 방법.
- 제 1 항 내지 제 7 항 중 어느 한 항에 있어서, 공압 운반에서 초기 기체 속도는 프루드 수 2 내지 40 에 상응하는 고흡수성 입자의 공압 운반 방법.
- 제 1 항 내지 제 8 항 중 어느 한 항에 있어서, 공압 운반에서 운반 물질 로드는 1 내지 30 ㎏/㎏ 이고, 운반 물질 로드는 운반 물질 질량 유속과 기체 질량 유속의 지수인 고흡수성 입자의 공압 운반 방법.
- 고흡수성 입자 및 왁스 입자를 포함하는 조성물로서, 왁스 입자는 고흡수성 입자의 표면에 있고, 왁스 입자는 물에 분산될 수 있고 유리 전이 온도가 적어도 65℃ 이고, 고흡수성 입자에 기초하여 왁스 입자의 비율은 0.02 중량% 내지 0.2 중량% 이고, 조성물은 4.83 kPa (AUL0.7psi) 의 압력 하의 흡수율이 적어도 10 g/g 인 조성물.
- 제 10 항에 있어서, 왁스는 유리 전이 온도가 적어도 80℃ 인 조성물.
- 제 10 항 또는 제 11 항에 있어서, 고흡수성 입자에 기초하여, 0.035 중량% 내지 0.08 중량% 의 왁스가 사용되는 조성물.
- 제 1 항 내지 제 12 항 중 어느 한 항에 있어서, 왁스는 5 내지 30 mol% 의 적어도 하나의 에틸렌계 불포화 카르복시산과 70 내지 95 mol% 의 적어도 하나의 에틸렌계 불포화 탄화수소의 공중합체인 조성물.
- 제 10 항 내지 제 13 항 중 어느 한 항에 있어서, 고흡수성 입자는 평균 입자 크기가 250 내지 500 ㎛ 인 조성물.
- 제 10 항 내지 제 14 항 중 어느 한 항에 있어서, 고흡수성 입자는 평균 구형도 (ASPHT) 가 0.72 초과인 조성물.
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PCT/EP2019/051966 WO2019154652A1 (de) | 2018-02-06 | 2019-01-28 | Verfahren zur pneumatischen förderung von superabsorberpartikeln |
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WO2025040441A1 (de) * | 2023-08-18 | 2025-02-27 | Basf Se | Verfahren zur thermischen oberflächennachvernetzung von superabsorbern |
WO2025061557A1 (de) * | 2023-09-22 | 2025-03-27 | Basf Se | Verfahren zur thermischen oberflächennachvernetzung von superabsorbern |
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2019
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- 2019-01-28 CN CN201980008695.9A patent/CN111615408A/zh active Pending
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- 2019-01-28 EP EP19701863.3A patent/EP3749376B1/de active Active
- 2019-01-28 WO PCT/EP2019/051966 patent/WO2019154652A1/de unknown
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EP0755964A2 (de) * | 1995-07-07 | 1997-01-29 | Hoechst Aktiengesellschaft | Hydrophile, hochquellfähige Hydrogele |
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JP7342035B2 (ja) | 2023-09-11 |
WO2019154652A1 (de) | 2019-08-15 |
US11859059B2 (en) | 2024-01-02 |
JP2021512213A (ja) | 2021-05-13 |
EP3749376A1 (de) | 2020-12-16 |
US20200347192A1 (en) | 2020-11-05 |
CN111615408A (zh) | 2020-09-01 |
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KR102696527B1 (ko) | 2024-08-19 |
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