JP7350766B2 - チーグラー・ナッタ触媒の失活および中和 - Google Patents
チーグラー・ナッタ触媒の失活および中和 Download PDFInfo
- Publication number
- JP7350766B2 JP7350766B2 JP2020551423A JP2020551423A JP7350766B2 JP 7350766 B2 JP7350766 B2 JP 7350766B2 JP 2020551423 A JP2020551423 A JP 2020551423A JP 2020551423 A JP2020551423 A JP 2020551423A JP 7350766 B2 JP7350766 B2 JP 7350766B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- solution polymerization
- ziegler
- polymerization reactor
- natta catalyst
- 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
Links
Classifications
-
- 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
- C08F10/02—Ethene
-
- 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
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/14—Monomers containing five or more carbon atoms
-
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/04—Polymerisation in solution
- C08F2/06—Organic solvent
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
- C08F2/42—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation using short-stopping agents
-
- 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
- C08F210/14—Monomers containing five or more carbon atoms
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/65—Pretreating the metal or compound covered by group C08F4/64 before the final contacting with the metal or compound covered by group C08F4/44
- C08F4/652—Pretreating with metals or metal-containing compounds
- C08F4/654—Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
- C08F4/6543—Pretreating with metals or metal-containing compounds with magnesium or compounds thereof halides of magnesium
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/65—Pretreating the metal or compound covered by group C08F4/64 before the final contacting with the metal or compound covered by group C08F4/44
- C08F4/652—Pretreating with metals or metal-containing compounds
- C08F4/655—Pretreating with metals or metal-containing compounds with aluminium or compounds thereof
- C08F4/6555—Pretreating with metals or metal-containing compounds with aluminium or compounds thereof and magnesium or compounds thereof
-
- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
-
- 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
- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
- C08F2410/08—Presence of a deactivator
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Description
本出願は、2018年3月28日に出願された米国仮特許出願第62/649,205号の優先権を主張するものであり、その全体が参照により本明細書に完全に組み込まれる。
本願発明には以下の態様が含まれる。
項1.
エチレン系ポリマーを生成するための溶液重合プロセスであって、
エチレンモノマー、炭化水素溶媒、およびチーグラー・ナッタ触媒を、溶液重合反応器に導入することと、
前記エチレンモノマーおよび前記炭化水素溶媒を、前記溶液重合反応器内で、前記チーグラー・ナッタ触媒を使用して溶液重合することによって、前記エチレン系ポリマーを生成することと、
触媒失活剤を前記溶液重合反応器に導入し、それによって塩酸副生成物が生成されることと、を含み、
前記触媒失活剤が、
長鎖カルボキシレートと、カルシウムを除く、IUPAC周期律表の1、2、および12族から選択される少なくとも1種のカチオンと、を含み、
前記触媒失活剤が、前記チーグラー・ナッタ触媒の有効性を低減させ、塩化カルシウム以外の塩化物塩を形成することによって、前記塩酸を中和する、プロセス。
項2.
追加のオレフィンコモノマーが、前記エチレンモノマー、炭化水素溶媒、およびチーグラー・ナッタ触媒のうちの少なくとも1種と共に、前記溶液重合反応器に導入される、項1に記載の方法。
項3.
前記追加のオレフィンコモノマーが、プロペン、ブテン、ペンテン、ヘキセン、ペンテン、オクテン、ノネン、デセン、ウンデセン、ドデセン、およびこれらの組み合わせからなる群から選択される、項2に記載の方法。
項4.
前記炭化水素溶媒が、C6~C12オレフィン、C6~C12パラフィン、およびこれらの混合物からなる群から選択される、項1~3のいずれか1項に記載の方法。
項5.
助触媒が、前記エチレンモノマー、炭化水素溶媒、およびチーグラー・ナッタ触媒のうちの少なくとも1種と共に、前記溶液重合反応器に導入される、項1~4のいずれか1項に記載の方法。
項6.
前記チーグラー・ナッタ触媒が、MgCl2担持遷移金属触媒からなる群から選択され、前記遷移金属が、Ti、Zr、V、およびHfから選択され得る、項1~5のいずれか1項に記載の方法。
項7.
前記触媒失活剤が、前記溶液重合反応器の出口付近で、前記溶液重合反応器に導入される、項1~6のいずれか1項に記載の方法。
項8.
前記少なくとも1種のカチオンが、カルシウムを除く、IUPAC周期律表の1、2、および12族から選択される、項1~7のいずれか1項に記載の方法。
項9.
前記長鎖カルボキシレートが、6個以上の炭素原子~40個以下の炭素原子を含む、項1~8のいずれか1項に記載の方法。
項10.
前記長鎖カルボキシレートが、12個以上の炭素原子~22個以下の炭素原子を含む、項1~9のいずれか1項に記載の方法。
項11.
前記触媒失活剤が、式:M[RCOO]xを有し、式中、Mは、ナトリウム、亜鉛、およびマグネシウムから選択され、Rは、ステアリル(C17H35)およびオレイル(C17H33)から選択され、xは、1または2である、項1~10のいずれか1項に記載の方法。
項12.
前記触媒失活剤が、前記加水分解性塩化物に対して、0.2モル当量以上~8.0モル当量未満の量で、前記溶液重合反応器に添加される、項1~13のいずれか1項に記載の方法。
項13.
前記溶液重合反応器内の温度が、160℃以上~220℃以下である場合、前記触媒失活剤が、前記溶液重合反応器の前記出口に添加される、項1~14のいずれか1項に記載の方法。
Claims (7)
- エチレン系ポリマーを生成するための溶液重合プロセスであって、
エチレンモノマー、炭化水素溶媒、およびチーグラー・ナッタ触媒を、溶液重合反応器に導入することと、
前記エチレンモノマーおよび前記炭化水素溶媒を、前記溶液重合反応器内で、前記チーグラー・ナッタ触媒を使用して溶液重合することによって、前記エチレン系ポリマーを生成することと、
触媒失活剤を前記溶液重合反応器に導入し、それによって副生成物として塩酸が生成されることと、を含み、
前記触媒失活剤が、前記チーグラー・ナッタ触媒の有効性を低減させ、塩化カルシウム以外の塩化物塩を形成することによって、前記塩酸を中和し、
前記チーグラー・ナッタ触媒が、MgCl 2 担持遷移金属触媒からなる群から選択され、前記MgCl 2 担持遷移金属触媒中の遷移金属が、Ti、Zr、V、およびHfからなる群から選択され、
前記触媒失活剤が、式:M[RCOO]xを有し、式中、Mは、ナトリウム、亜鉛、およびマグネシウムからなる群から選択され、[RCOO]は12~22個の炭素原子を含む長鎖カルボキシレートであり、xは、1または2であり、
前記触媒失活剤が、前記チーグラー・ナッタ触媒の失活中に形成される遊離塩化物イオンの量に対して、0.2モル当量以上~8.0モル当量未満の量で、前記溶液重合反応器に添加され、そして、
前記溶液重合反応器内の温度が160℃以上~220℃以下である場合、前記触媒失活剤が前記溶液重合反応器の出口に添加される、
プロセス。 - 追加のオレフィンコモノマーが、前記エチレンモノマー、炭化水素溶媒、およびチーグラー・ナッタ触媒のうちの少なくとも1種と共に、前記溶液重合反応器に導入される、請求項1に記載の方法。
- 前記追加のオレフィンコモノマーが、プロペン、ブテン、ペンテン、ヘキセン、ペンテン、オクテン、ノネン、デセン、ウンデセン、ドデセン、およびこれらの組み合わせからなる群から選択される、請求項2に記載の方法。
- 前記炭化水素溶媒が、C6~C12オレフィン、C6~C12パラフィン、およびこれらの混合物からなる群から選択される、請求項1~3のいずれか1項に記載の方法。
- 助触媒が、前記エチレンモノマー、炭化水素溶媒、およびチーグラー・ナッタ触媒のうちの少なくとも1種と共に、前記溶液重合反応器に導入される、請求項1~4のいずれか1項に記載の方法。
- 前記触媒失活剤が、前記溶液重合反応器の出口付近で、前記溶液重合反応器に導入される、請求項1~5のいずれか1項に記載の方法。
- 前記式M[RCOO]x中のRはステアリル(C17H35)およびオレイル(C17H33)からなる群から選択される、請求項1~6のいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862649205P | 2018-03-28 | 2018-03-28 | |
US62/649,205 | 2018-03-28 | ||
PCT/US2019/023809 WO2019190949A1 (en) | 2018-03-28 | 2019-03-25 | Ziegler-natta catalyst deactivation and neutralization |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021519356A JP2021519356A (ja) | 2021-08-10 |
JP7350766B2 true JP7350766B2 (ja) | 2023-09-26 |
Family
ID=66223819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020551423A Active JP7350766B2 (ja) | 2018-03-28 | 2019-03-25 | チーグラー・ナッタ触媒の失活および中和 |
Country Status (8)
Country | Link |
---|---|
US (1) | US11236182B2 (ja) |
EP (1) | EP3774938A1 (ja) |
JP (1) | JP7350766B2 (ja) |
KR (1) | KR20200136418A (ja) |
CN (1) | CN111918887B (ja) |
BR (1) | BR112020019061A2 (ja) |
SG (1) | SG11202008653YA (ja) |
WO (1) | WO2019190949A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022123586A1 (en) * | 2020-12-07 | 2022-06-16 | Ongc Petro Additions Limited | A process for neutralization of spent catalyst |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3819328A (en) | 1970-06-24 | 1974-06-25 | Petrolite Corp | Use of alkylene polyamines in distillation columns to control corrosion |
FR2302305A1 (fr) * | 1975-02-28 | 1976-09-24 | Charbonnages Ste Chimique | Procede perfectionne de polymerisation et de copolyme |
US4314912A (en) | 1977-02-03 | 1982-02-09 | The Dow Chemical Company | High efficiency, high temperature catalyst for polymerizing olefins |
DE3170328D1 (en) * | 1980-12-11 | 1985-06-05 | Du Pont Canada | Deactivation of catalyst in solution process for polymerization of alpha-olefins |
JPS5819308A (ja) * | 1981-07-28 | 1983-02-04 | Sumitomo Chem Co Ltd | 触媒の脱活性化処理方法 |
JPS59126409A (ja) * | 1983-01-11 | 1984-07-21 | Asahi Chem Ind Co Ltd | エチレン重合体の製造方法 |
JPS59174603A (ja) * | 1983-03-25 | 1984-10-03 | Asahi Chem Ind Co Ltd | エチレン系重合体の製法 |
JPS604509A (ja) * | 1983-06-21 | 1985-01-11 | Ube Ind Ltd | エチレンの重合法 |
US4547475A (en) | 1984-09-07 | 1985-10-15 | The Dow Chemical Company | Magnesium halide catalyst support and transition metal catalyst prepared thereon |
US4612300A (en) | 1985-06-06 | 1986-09-16 | The Dow Chemical Company | Novel catalyst for producing relatively narrow molecular weight distribution olefin polymers |
CN100471875C (zh) | 2003-07-15 | 2009-03-25 | 三井化学株式会社 | 热交换器的积垢防止方法 |
CA2598957C (en) | 2007-08-27 | 2014-07-15 | Nova Chemicals Corporation | Process for high temperature solution polymerization |
US9139784B2 (en) | 2011-12-07 | 2015-09-22 | Nova Chemicals (International) S.A. | Reducing fouling in heat exchangers |
-
2019
- 2019-03-25 KR KR1020207029099A patent/KR20200136418A/ko not_active Application Discontinuation
- 2019-03-25 SG SG11202008653YA patent/SG11202008653YA/en unknown
- 2019-03-25 EP EP19718503.6A patent/EP3774938A1/en active Pending
- 2019-03-25 WO PCT/US2019/023809 patent/WO2019190949A1/en unknown
- 2019-03-25 BR BR112020019061-6A patent/BR112020019061A2/pt active Search and Examination
- 2019-03-25 US US16/977,287 patent/US11236182B2/en active Active
- 2019-03-25 JP JP2020551423A patent/JP7350766B2/ja active Active
- 2019-03-25 CN CN201980021697.1A patent/CN111918887B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US11236182B2 (en) | 2022-02-01 |
BR112020019061A2 (pt) | 2020-12-29 |
JP2021519356A (ja) | 2021-08-10 |
CN111918887A (zh) | 2020-11-10 |
CN111918887B (zh) | 2023-11-07 |
US20210002393A1 (en) | 2021-01-07 |
SG11202008653YA (en) | 2020-10-29 |
EP3774938A1 (en) | 2021-02-17 |
WO2019190949A1 (en) | 2019-10-03 |
KR20200136418A (ko) | 2020-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3310476B1 (en) | Antifouling oligomerization catalyst systems | |
JP4145951B2 (ja) | エチレンポリマー及びその製法 | |
SU1473713A3 (ru) | Способ получени полиолефинов | |
US6734134B1 (en) | Ziegler-natta catalyst for tuning MWD of polyolefin, method of making, method of using, and polyolefins made therewith | |
US20030018143A1 (en) | Hydrogen response Ziegler-Natta catalyst for narrowing MWD of polyolefin, method of making, method of using, and polyolefins made therewith | |
EP1515998B1 (en) | Liquid phase process for the polymerization of alpha-olefins | |
EP3161016B1 (en) | Ethylene polymerization process having improved heat exchanger performance | |
NO141264B (no) | Fremgangsmaate til polymerisasjon eller kopolymerisasjon av polyetylen under hoeyt trykk | |
EA019637B1 (ru) | Катализатор циглера-натта | |
EP2897987B1 (en) | Process for the gas-phase polymerization of olefins | |
JP7350766B2 (ja) | チーグラー・ナッタ触媒の失活および中和 | |
KR101845578B1 (ko) | 알파-올레핀의 고온 (공)중합을 위한 촉매 전구체 및 촉매 | |
JP2007505970A (ja) | ポリオレフィン用チーグラー・ナッタ触媒 | |
MX2011009795A (es) | Metodos para preparar un catalizador de polimerizacion. | |
WO2010060799A1 (en) | Solution process for the olefins polymerization | |
CZ305857B6 (cs) | Použití činidla pro nukleaci polyolefinů pro eliminaci tvorby úsad polyolefinového prášku v plynofázních polymeračních reaktorech | |
JPS63301209A (ja) | エチレン重合体の製造方法 | |
KR101102245B1 (ko) | 폴리올레핀 중합을 위한 촉매 및 그를 이용한 폴리올레핀중합체의 제조 방법 | |
CN110903424B (zh) | 一种多相丙烯共聚物及其连续气相流化床聚合工艺 | |
NO145530B (no) | Fremgangsmaate til fremstilling av en forbedret alkenpolymerisasjonskatalysator | |
RU2356911C1 (ru) | Способ получения полиэтилена и сополимеров этилена с альфа-олефинами с широким молекулярно-массовым распределением | |
JP2010501680A (ja) | 重合工程に対する促進剤系およびそれからつくられた重合体 | |
CA1105440A (en) | PROCESS FOR THE LOW PRESSURE POLYMERISATION AND COPOLYMERISATION OF .alpha.-OLEFINS | |
EP1306394B1 (en) | Ziegler-Natta catalyst for narrow to broad MWD of polyolefins, method of making, method of using, and polyolefins made therewith | |
EP1308465A1 (en) | Improved hydrogen response Ziegler-Natta catalyst for narrowing MWD of polyolefin, method of making it, polymerisation process using it, and polyolefins made therewith |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20200928 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20210127 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220314 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230131 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230207 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20230502 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230517 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230822 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230913 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7350766 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |