RU2455060C2 - Аппарат для жидкофазной полимеризации олефинов - Google Patents
Аппарат для жидкофазной полимеризации олефинов Download PDFInfo
- Publication number
- RU2455060C2 RU2455060C2 RU2009133299/02A RU2009133299A RU2455060C2 RU 2455060 C2 RU2455060 C2 RU 2455060C2 RU 2009133299/02 A RU2009133299/02 A RU 2009133299/02A RU 2009133299 A RU2009133299 A RU 2009133299A RU 2455060 C2 RU2455060 C2 RU 2455060C2
- Authority
- RU
- Russia
- Prior art keywords
- reactor
- closed loop
- closed
- polymerization
- loop reactor
- Prior art date
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- 239000007791 liquid phase Substances 0.000 title claims abstract description 11
- 150000001336 alkenes Chemical class 0.000 title description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 68
- 239000000725 suspension Substances 0.000 claims abstract description 39
- 238000012546 transfer Methods 0.000 claims abstract description 39
- 239000003054 catalyst Substances 0.000 claims abstract description 33
- 239000004711 α-olefin Substances 0.000 claims abstract description 13
- 238000006116 polymerization reaction Methods 0.000 claims description 69
- 239000000178 monomer Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 239000011949 solid catalyst Substances 0.000 claims description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 239000002685 polymerization catalyst Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 150000002902 organometallic compounds Chemical class 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005977 Ethylene Substances 0.000 abstract description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010327 methods by industry Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 12
- -1 aluminum alkyl compound Chemical class 0.000 description 10
- 230000000284 resting effect Effects 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 150000003623 transition metal compounds Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1812—Tubular reactors
- B01J19/1837—Loop-type reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/2435—Loop-type reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
- B01J8/384—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only
- B01J8/386—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only internally, i.e. the particles rotate within the vessel
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00004—Scale aspects
- B01J2219/00006—Large-scale industrial plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/0004—Processes in series
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/04—Monomers containing three or four carbon atoms
- C08F210/06—Propene
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07101751 | 2007-02-05 | ||
| EP07101751.1 | 2007-02-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2009133299A RU2009133299A (ru) | 2011-03-20 |
| RU2455060C2 true RU2455060C2 (ru) | 2012-07-10 |
Family
ID=39259712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2009133299/02A RU2455060C2 (ru) | 2007-02-05 | 2008-01-28 | Аппарат для жидкофазной полимеризации олефинов |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2109498B1 (enExample) |
| JP (1) | JP2010518206A (enExample) |
| KR (1) | KR101468470B1 (enExample) |
| CN (1) | CN101674880B (enExample) |
| BR (1) | BRPI0807128B1 (enExample) |
| RU (1) | RU2455060C2 (enExample) |
| WO (1) | WO2008095807A1 (enExample) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102439497B1 (ko) * | 2014-12-29 | 2022-09-05 | 다우 글로벌 테크놀로지스 엘엘씨 | 오일 함유 에틸렌계 폴리머의 형성 방법 |
| CN107108991B (zh) * | 2014-12-29 | 2020-04-14 | 陶氏环球技术有限责任公司 | 形成乙烯/α-烯烃互聚物的方法 |
| KR101529977B1 (ko) * | 2015-01-16 | 2015-06-18 | 시엔시피이엘 주식회사 | 메탈로센 촉매 기반 폴리올레핀 계열의 용액중합 공정의 용매 분리 장치 및 그 방법 |
| JP6902965B2 (ja) * | 2017-08-29 | 2021-07-14 | 住友化学株式会社 | ポリオレフィンの製造方法 |
| EP3479896A1 (en) * | 2017-11-03 | 2019-05-08 | Borealis AG | Polymerization reactor system comprising at least one withdrawal valve |
| CN112469742B (zh) | 2018-06-15 | 2023-10-20 | 陶氏环球技术有限责任公司 | 具有高分子量高密度分数的基于双峰乙烯的聚合物 |
| EP3807342A1 (en) | 2018-06-15 | 2021-04-21 | Dow Global Technologies LLC | Cast films comprising bimodal ethylene-based polymers having high molecular weight high density fractions |
| BR112020025506B1 (pt) | 2018-06-15 | 2024-01-23 | Dow Global Technologies Llc | Método de produção de polímero à base de etileno bimodal |
| WO2019241518A1 (en) | 2018-06-15 | 2019-12-19 | Dow Global Technologies Llc | Blown films comprising bimodal ethylene-based polymers having high molecular weight high density fractions |
| TWI839414B (zh) | 2018-11-30 | 2024-04-21 | 美商陶氏全球科技有限責任公司 | 具有平衡特性之基於聚合物之膜 |
| CN111229140A (zh) * | 2020-03-09 | 2020-06-05 | 浙江石油化工有限公司 | 一种制备间戊二烯树脂的环管反应器及其方法 |
| US11254761B1 (en) | 2020-10-15 | 2022-02-22 | Chevron Phillips Chemical Company Lp | Catalyst pretreatment and feeding system for polypropylene production |
| KR20230083820A (ko) * | 2021-12-03 | 2023-06-12 | 에스케이이노베이션 주식회사 | 폴리올레핀 제조 장치 |
| EP4775291A1 (en) | 2025-01-10 | 2026-07-15 | Basell Poliolefine Italia S.r.l. | Process of separating a polymer-monomer mixture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997033920A1 (en) * | 1996-03-13 | 1997-09-18 | Borealis A/S | A process and an apparatus for polymerization of olefin monomers |
| WO2002096835A2 (en) * | 2001-05-25 | 2002-12-05 | Bp Exploration Operating Company Limited | Fischer-tropsch synthesis process |
| WO2005077985A2 (en) * | 2004-02-13 | 2005-08-25 | Total Petrochemicals Research Feluy | Multiple loop reactor for olefin polymerization |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2730999B1 (fr) * | 1995-02-24 | 1997-04-18 | Bp Chemicals Snc | Appareillage et procede de polymerisation d'olefine en phase gazeuse |
| US6815511B2 (en) * | 1997-07-15 | 2004-11-09 | Chevron Phillips Chemical Company, Lp | Continuous withdrawal from high solids slurry polymerization |
| EP1660231B1 (en) * | 2004-02-13 | 2007-04-18 | Total Petrochemicals Research Feluy | Method and apparatus for preparing and supplying catalyst slurry to a polymerisation reactor |
| EP1611948A1 (en) * | 2004-07-01 | 2006-01-04 | Total Petrochemicals Research Feluy | Polymerization reactors with a by-pass line |
| ATE461225T1 (de) * | 2004-10-14 | 2010-04-15 | Basell Poliolefine Srl | Verfahren zur gasphasenpolymerisation von olefinen |
-
2008
- 2008-01-28 EP EP08708269.9A patent/EP2109498B1/en active Active
- 2008-01-28 JP JP2009548649A patent/JP2010518206A/ja active Pending
- 2008-01-28 CN CN200880003993.0A patent/CN101674880B/zh active Active
- 2008-01-28 BR BRPI0807128-4A patent/BRPI0807128B1/pt active IP Right Grant
- 2008-01-28 WO PCT/EP2008/050946 patent/WO2008095807A1/en not_active Ceased
- 2008-01-28 RU RU2009133299/02A patent/RU2455060C2/ru active
- 2008-01-28 KR KR1020097016286A patent/KR101468470B1/ko active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997033920A1 (en) * | 1996-03-13 | 1997-09-18 | Borealis A/S | A process and an apparatus for polymerization of olefin monomers |
| WO2002096835A2 (en) * | 2001-05-25 | 2002-12-05 | Bp Exploration Operating Company Limited | Fischer-tropsch synthesis process |
| WO2005077985A2 (en) * | 2004-02-13 | 2005-08-25 | Total Petrochemicals Research Feluy | Multiple loop reactor for olefin polymerization |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010518206A (ja) | 2010-05-27 |
| EP2109498B1 (en) | 2016-11-16 |
| KR20090108699A (ko) | 2009-10-16 |
| KR101468470B1 (ko) | 2014-12-04 |
| WO2008095807A1 (en) | 2008-08-14 |
| BRPI0807128B1 (pt) | 2018-05-29 |
| BRPI0807128A2 (pt) | 2014-04-15 |
| RU2009133299A (ru) | 2011-03-20 |
| CN101674880B (zh) | 2015-05-27 |
| EP2109498A1 (en) | 2009-10-21 |
| CN101674880A (zh) | 2010-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PD4A | Correction of name of patent owner | ||
| QB4A | Licence on use of patent |
Free format text: LICENCE FORMERLY AGREED ON 20181019 Effective date: 20181019 |