JP2022504940A - 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用 - Google Patents

複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用 Download PDF

Info

Publication number
JP2022504940A
JP2022504940A JP2021520560A JP2021520560A JP2022504940A JP 2022504940 A JP2022504940 A JP 2022504940A JP 2021520560 A JP2021520560 A JP 2021520560A JP 2021520560 A JP2021520560 A JP 2021520560A JP 2022504940 A JP2022504940 A JP 2022504940A
Authority
JP
Japan
Prior art keywords
meth
acrylic
diacrylate
weight
composition
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.)
Pending
Application number
JP2021520560A
Other languages
English (en)
Japanese (ja)
Other versions
JP2022504940A5 (https=
JPWO2020079015A5 (https=
Inventor
ピエール エスカーレ,
ピエール ジェラール,
ダナ スワン,
ロバート バルゾッティ,
ネイサン バックマン,
ジン-ハン ワン,
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkema France SA
Original Assignee
Arkema France SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arkema France SA filed Critical Arkema France SA
Publication of JP2022504940A publication Critical patent/JP2022504940A/ja
Publication of JP2022504940A5 publication Critical patent/JP2022504940A5/ja
Publication of JPWO2020079015A5 publication Critical patent/JPWO2020079015A5/ja
Priority to JP2024115466A priority Critical patent/JP2024161383A/ja
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F285/00Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/14Methyl esters, e.g. methyl (meth)acrylate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10Coating or impregnating independently of the moulding or shaping step
    • B29B15/12Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/50Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/521Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06Polymerisation of acrylate or methacrylate esters on to polymers thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/28Oxygen or compounds releasing free oxygen
    • C08F4/32Organic compounds
    • C08F4/34Per-compounds with one peroxy-radical
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/244Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/249Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs characterised by the additives used in the prepolymer mixture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/50Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04Polymers of esters
    • B29K2033/12Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10Esters
    • C08F222/1006Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/102Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10Homopolymers or copolymers of methacrylic acid esters
    • C08J2333/12Homopolymers or copolymers of methyl methacrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/14Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16Fibres; Fibrils

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Polymerisation Methods In General (AREA)
  • Graft Or Block Polymers (AREA)
  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
JP2021520560A 2018-10-15 2019-10-15 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用 Pending JP2022504940A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2024115466A JP2024161383A (ja) 2018-10-15 2024-07-19 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1859537 2018-10-15
FR1859537A FR3087203B1 (fr) 2018-10-15 2018-10-15 Compositions polymeres (meth)acryliques pour composite, leur procede de preparation et leur utilisation
PCT/EP2019/077996 WO2020079015A1 (en) 2018-10-15 2019-10-15 (meth) acrylic polymeric compositions for composite, its method of preparation and use

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2024115466A Division JP2024161383A (ja) 2018-10-15 2024-07-19 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用

Publications (3)

Publication Number Publication Date
JP2022504940A true JP2022504940A (ja) 2022-01-13
JP2022504940A5 JP2022504940A5 (https=) 2022-10-14
JPWO2020079015A5 JPWO2020079015A5 (https=) 2022-10-14

Family

ID=65685578

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2021520560A Pending JP2022504940A (ja) 2018-10-15 2019-10-15 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用
JP2024115466A Pending JP2024161383A (ja) 2018-10-15 2024-07-19 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2024115466A Pending JP2024161383A (ja) 2018-10-15 2024-07-19 複合材料のための(メタ)アクリルポリマー組成物、その調製方法および使用

Country Status (9)

Country Link
US (1) US12286492B2 (https=)
EP (1) EP3867302A1 (https=)
JP (2) JP2022504940A (https=)
KR (1) KR20210076001A (https=)
CN (1) CN112805318A (https=)
BR (1) BR112021006662A2 (https=)
CA (1) CA3114724A1 (https=)
FR (1) FR3087203B1 (https=)
WO (1) WO2020079015A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3117678B1 (fr) 2020-12-16 2024-02-23 Arkema France Article composite à base d’une matrice thermoplastique intégrant au moins un transducteur comprenant un polymère piézoélectrique
FR3130809B1 (fr) 2021-12-22 2023-12-29 Arkema France Composition (méth)acrylique pour composite, son procédé de préparation et son utilisation
FR3132523B1 (fr) 2022-02-08 2026-01-09 Arkema France Composition (meth)acrylique, materiau composite polymérique obtenu a partir d’une telle composition, procede pour la production de ladite composition et dudit matériau et utilisations de ceux-ci
DE102022105682A1 (de) 2022-03-10 2023-09-14 Solidian Gmbh Verfahren zur Herstellung wenigstens eines teilgehärteten Bewehrungselements
FR3144139A1 (fr) 2022-12-23 2024-06-28 Arkema France Composite thermoplastique et procédé pour la production de celui-ci pour le renforcement d’une structure.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497670A (en) * 1978-01-18 1979-08-01 Sumitomo Chem Co Ltd Preparation of glass fiber reinforced resin plate

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08244154A (ja) * 1995-03-10 1996-09-24 Nippon Shokubai Co Ltd 人造石およびその製造方法
JPH09111085A (ja) * 1995-10-13 1997-04-28 Mitsubishi Rayon Co Ltd 樹脂組成物、アクリル系プリミックス及びアクリル系人工大理石の製造方法
US6203911B1 (en) * 1998-06-17 2001-03-20 E. I. Du Pont De Nemours And Company Thermoset volatile monomer molding compositions
JP4215123B2 (ja) * 2003-06-19 2009-01-28 綜研化学株式会社 重合性アクリル系組成物及び該組成物を使用したアクリル系シートの製造方法
DE102007017978A1 (de) * 2007-04-05 2008-10-09 Scheer Surface Solutions Gmbh Kunststoffformteile und ihre Herstellung
JP5486341B2 (ja) * 2010-02-23 2014-05-07 パナソニック株式会社 熱硬化型(メタ)アクリル系樹脂組成物とそれを用いたシートモールディングコンパウンド、バルクモールディングコンパウンドおよび成形品
FR2981652B1 (fr) 2011-10-21 2015-03-27 Arkema France Composites via la polymerisation in-situ de resines thermoplastiques methacryliques
FR2993581B1 (fr) 2012-07-18 2016-01-22 Arkema France Procede d'impregnation pour un substrat fibreux, sirop (meth)acrylique liquide pour le procede d'impregnation, son procede de polymerisation et produit structure obtenu a partir de celui-ci
CA2839915A1 (en) 2014-01-17 2015-07-17 Borna Hajimiragha Bendable frp rebar
FR3030585B1 (fr) * 2014-12-22 2017-02-03 Arkema France Procede d'impregnation d'un substrat fibreux avec un melange (meth)acrylique, composition dudit melange, et materiau composite obtenu apres polymerisation dudit melange.
FR3064267B1 (fr) * 2017-03-27 2021-07-23 Arkema France Compose reticulant, son procede de synthese, composition liquide comprenant ledit compose reticulant, son procede de polymerisation, et materiau obtenu apres polymerisation de ladite composition
FR3083240A1 (fr) * 2018-06-28 2020-01-03 Schneider Electric Industries Sas Materiau dielectrique, son procede de fabrication et ses utilisations

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497670A (en) * 1978-01-18 1979-08-01 Sumitomo Chem Co Ltd Preparation of glass fiber reinforced resin plate

Also Published As

Publication number Publication date
US20210388136A1 (en) 2021-12-16
US12286492B2 (en) 2025-04-29
KR20210076001A (ko) 2021-06-23
EP3867302A1 (en) 2021-08-25
JP2024161383A (ja) 2024-11-19
BR112021006662A2 (pt) 2021-07-06
CN112805318A (zh) 2021-05-14
FR3087203B1 (fr) 2022-01-21
FR3087203A1 (fr) 2020-04-17
WO2020079015A1 (en) 2020-04-23
CA3114724A1 (en) 2020-04-23

Similar Documents

Publication Publication Date Title
JP6785262B2 (ja) 繊維状基材の含浸方法、含浸方法用の液体状(メタ)アクリルシロップ剤、その重合方法、及びその得られた構造化物品
US12286492B2 (en) (Meth) acrylic polymeric compositions for composite, its method of preparation and use
KR102559703B1 (ko) 2 종의 개시제를 포함하는 액체 조성물, 이의 중합 방법, 용도 및 조성물의 중합 후에 수득되는 재료 또는 조성물
MX2014004591A (es) Material compuesto via polimerizacion in situ de resinas (met) acrilicas termoplasticas y su uso.
EP3762221A1 (en) Precursor composition for acrylic thermoplastic composites and its method of preparation and use
EP4453052B1 (en) Composition of (meth)acrylic for composites, its preparation process and its use
US11879030B2 (en) Liquid composition comprising three initiators, its process of polymerization, use and material or composition obtained following polymerization of composition
JP2025084749A (ja) ワックス化合物を含む液体組成物、その重合方法、使用および材料、または組成物の重合後に得られる組成物

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20221005

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20221005

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20231031

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20231107

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240206

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20240319

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240719

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20240726

A912 Re-examination (zenchi) completed and case transferred to appeal board

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20241004

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20260323