BR112014012847A2 - composição fluoroquímica e uso desta - Google Patents

composição fluoroquímica e uso desta

Info

Publication number
BR112014012847A2
BR112014012847A2 BR112014012847A BR112014012847A BR112014012847A2 BR 112014012847 A2 BR112014012847 A2 BR 112014012847A2 BR 112014012847 A BR112014012847 A BR 112014012847A BR 112014012847 A BR112014012847 A BR 112014012847A BR 112014012847 A2 BR112014012847 A2 BR 112014012847A2
Authority
BR
Brazil
Prior art keywords
group
fluorochemical composition
isocyanate
reactive
organic
Prior art date
Application number
BR112014012847A
Other languages
English (en)
Inventor
Jonckheree Eric
Mabire Frederic
Tang Qian
Nusser Rainer
Original Assignee
Clariant Int Ltd
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 Clariant Int Ltd filed Critical Clariant Int Ltd
Publication of BR112014012847A2 publication Critical patent/BR112014012847A2/pt

Links

Classifications

    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/50—Polyethers having heteroatoms other than oxygen
    • C08G18/5003—Polyethers having heteroatoms other than oxygen having halogens
    • C08G18/5015—Polyethers having heteroatoms other than oxygen having halogens having fluorine atoms
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • 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
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
    • 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
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
    • C08G18/0814—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups containing ammonium groups or groups forming them
    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805—Compounds having only one group containing active hydrogen
    • C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
    • C08G18/2885—Compounds containing at least one heteroatom other than oxygen or nitrogen containing halogen atoms
    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3802—Low-molecular-weight compounds having heteroatoms other than oxygen having halogens
    • C08G18/3804—Polyhydroxy compounds
    • C08G18/3812—Polyhydroxy compounds having fluorine atoms
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/576—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them containing fluorine
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/11—Halides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/11—Oleophobic properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/12—Hydrophobic properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y10T428/31544—Addition polymer is perhalogenated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Paper (AREA)

Abstract

resumo patente de invenção: "composição fluoroquímica e uso desta". a presente invenção refere-se à composição fluoroquímica compreendendo uma dispersão ou uma solução de um composto fluorado, em que o dito composto fluorado compreende o produto de reação de pelo menos dois reagentes a e b em que o reagente a sendo um composto da fórmula (i); rf-o-(cf(cf3)cf2o)mcf(cf3)-x-y-z (i) com rf sendo um grupo alquila perfluorado, m sendo de 3 a 25; x sendo um grupo carbonila ou ch2; y sendo uma ligação química ou um grupo de ligação bivalente ou trivalente orgânico portando um grupo reativo em isocianato funcional ou bifuncional; z sendo um grupo orgânico portando pelo menos um grupo catiônico, o reagente b sendo um isocianato polifuncional ou uma mistura destes e opcionalmente um ou mais correagentes c reativos em isocianato.
BR112014012847A 2011-12-21 2012-12-13 composição fluoroquímica e uso desta BR112014012847A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20110010033 EP2607397A1 (en) 2011-12-21 2011-12-21 Fluorochemical composition and use thereof
PCT/EP2012/005174 WO2013091804A1 (en) 2011-12-21 2012-12-13 Fluorochemical composition and use thereof

Publications (1)

Publication Number Publication Date
BR112014012847A2 true BR112014012847A2 (pt) 2017-06-13

Family

ID=47469869

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014012847A BR112014012847A2 (pt) 2011-12-21 2012-12-13 composição fluoroquímica e uso desta

Country Status (16)

Country Link
US (1) US9551110B2 (pt)
EP (2) EP2607397A1 (pt)
JP (1) JP6280044B2 (pt)
KR (1) KR102055109B1 (pt)
CN (1) CN104039853B (pt)
AR (1) AR088879A1 (pt)
AU (1) AU2012359245A1 (pt)
BR (1) BR112014012847A2 (pt)
CA (1) CA2850991C (pt)
ES (1) ES2578783T3 (pt)
IL (1) IL232362A0 (pt)
IN (1) IN2014DN02866A (pt)
RU (1) RU2014129806A (pt)
TW (1) TW201331248A (pt)
WO (1) WO2013091804A1 (pt)
ZA (1) ZA201402543B (pt)

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US8771470B2 (en) * 2012-01-17 2014-07-08 Agc Chemicals Americas, Inc. Method of preparing a treated article and treated article formed therefrom
KR20170077162A (ko) 2014-10-28 2017-07-05 쓰리엠 이노베이티브 프로퍼티즈 컴파니 반발 표면을 포함하는 스프레이 적용 시스템 구성 요소 및 방법
WO2017074709A1 (en) * 2015-10-28 2017-05-04 3M Innovative Properties Company Solvent-based repellent coating compositions and coated substrates
EP3368618B1 (en) 2015-10-28 2020-11-25 3M Innovative Properties Company Articles subject to ice formation comprising a repellent surface
BR112018008646A2 (pt) 2015-10-28 2018-10-30 3M Innovative Properties Co componentes de um sistema de aplicação de aspersões que compreende uma superfície repelente e métodos
KR102269338B1 (ko) 2016-04-05 2021-06-28 파이버린 테크놀로지스 리미티드 종이 및 판지 제품
US11846072B2 (en) 2016-04-05 2023-12-19 Fiberlean Technologies Limited Process of making paper and paperboard products
WO2017189475A1 (en) 2016-04-26 2017-11-02 3M Innovative Properties Company Articles subject to ice formation comprising a repellent surface comprising a siloxane material
EP3301220A1 (en) 2016-09-30 2018-04-04 Coöperatie Avebe U.A. Greaseproof paper
WO2021229331A1 (en) * 2020-05-14 2021-11-18 3M Innovative Properties Company Compounds comprising perfluorinated group, photoinitiator group, and amide linking group
WO2023111952A1 (pt) * 2021-12-15 2023-06-22 Cid Ricardo Marques Ribeiro Polímero biodegradável para revestimento de substratos, seus métodos e usos
EP4198095A1 (en) * 2021-12-15 2023-06-21 Cid Ricardo Marques Ribeiro Biodegradable polymer for coating substrates

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US3446761A (en) 1965-11-04 1969-05-27 Du Pont Stain-resistant article,and composition for preparing same
US3553179A (en) 1968-05-06 1971-01-05 Du Pont Acrylate-type esters of perfluoropoly-oxa-alkaneamidoalkyl alcohols and their polymers
IT1213441B (it) 1986-12-30 1989-12-20 Ausimont Spa Dispersioni acquose di poliuretani e fluorurati e loro impiego per spalmature tessili.
JP2610157B2 (ja) * 1988-04-19 1997-05-14 三菱レイヨン株式会社 繊維の抗菌処理法
CA2032813C (en) 1989-12-29 2002-09-24 Jack R. Kirchner Polyfluoro nitrogen-containing organic compounds
US5276175A (en) 1991-04-02 1994-01-04 Minnesota Mining And Manufacturing Company Isocyanate derivatives comprising flourochemical oligomers
IT1270213B (it) * 1994-06-13 1997-04-29 Ausimont Spa Dispersioni acquose di poliuretani floururati
FR2727417B1 (fr) * 1994-11-29 1997-01-03 Atochem Elf Sa Copolymeres fluores cationiques pour le traitement oleophobe et hydrophobe des materiaux de construction
IT1311977B1 (it) 1999-03-25 2002-03-22 Ausimont Spa Composizioni idro-oleo repellenti.
WO2003100157A1 (en) 2002-05-24 2003-12-04 3M Innovative Properties Company Fluorochemical composition for treatment of a fibrous substrate
ITMI20050188A1 (it) * 2005-02-10 2006-08-11 Solvay Solexis Spa Composizioni acquose contenenti sali di-carbossilici perfluoropolieterei per il trattamento oleorepellente della carta
JP5575637B2 (ja) * 2007-05-16 2014-08-20 ソルヴェイ・スペシャルティ・ポリマーズ・イタリー・エッセ・ピ・ア フッ素化ポリウレタン組成物
JP5774470B2 (ja) 2008-03-28 2015-09-09 クラリアント・ファイナンス・（ビーブイアイ）・リミテッド ヘキサフルオロプロピレンオキシドの重合
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US20110232530A1 (en) * 2008-11-25 2011-09-29 Dams Rudolf J Fluorinated ether urethanes and methods of using the same

Also Published As

Publication number Publication date
CA2850991A1 (en) 2013-06-27
EP2794705A1 (en) 2014-10-29
JP2015509115A (ja) 2015-03-26
KR102055109B1 (ko) 2019-12-13
CN104039853A (zh) 2014-09-10
KR20140107303A (ko) 2014-09-04
AR088879A1 (es) 2014-07-16
WO2013091804A1 (en) 2013-06-27
EP2607397A1 (en) 2013-06-26
ZA201402543B (en) 2015-03-25
CA2850991C (en) 2020-10-06
US9551110B2 (en) 2017-01-24
AU2012359245A1 (en) 2014-04-24
IN2014DN02866A (pt) 2015-05-15
CN104039853B (zh) 2016-12-14
RU2014129806A (ru) 2016-02-10
EP2794705B1 (en) 2016-03-30
JP6280044B2 (ja) 2018-02-14
IL232362A0 (en) 2014-06-30
US20140322543A1 (en) 2014-10-30
ES2578783T3 (es) 2016-08-01
TW201331248A (zh) 2013-08-01

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B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]