CN103224585B - 向挠性纤维质非织造基底赋予表面效果的方法 - Google Patents

向挠性纤维质非织造基底赋予表面效果的方法 Download PDF

Info

Publication number
CN103224585B
CN103224585B CN201310108457.XA CN201310108457A CN103224585B CN 103224585 B CN103224585 B CN 103224585B CN 201310108457 A CN201310108457 A CN 201310108457A CN 103224585 B CN103224585 B CN 103224585B
Authority
CN
China
Prior art keywords
formula
monomer
mixture
multipolymer
methyl
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.)
Expired - Fee Related
Application number
CN201310108457.XA
Other languages
English (en)
Chinese (zh)
Other versions
CN103224585A (zh
Inventor
H.黄
M.J.-J.帕邦
R.塞韦拉克
L.霍伊策
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.)
Chemours Co FC LLC
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of CN103224585A publication Critical patent/CN103224585A/zh
Application granted granted Critical
Publication of CN103224585B publication Critical patent/CN103224585B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/18Homopolymers or copolymers of nitriles
    • 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
    • C08F220/22Esters containing halogen
    • C08F220/24Esters containing halogen containing perhaloalkyl radicals
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H21/00Non-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
    • D21H21/14Non-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
    • 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
    • C08F220/04Acids; Metal salts or ammonium salts thereof
    • C08F220/06Acrylic acid; Methacrylic acid; Metal salts or ammonium salts 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
    • 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
    • C08F220/34Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03Non-macromolecular organic compounds
    • D21H17/05Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/11Halides
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/34Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/34Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H21/00Non-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
    • D21H21/14Non-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
    • D21H21/16Sizing or water-repelling agents
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31855Of addition polymer from unsaturated monomers
    • Y10T428/3188Next to cellulosic
    • Y10T428/31895Paper or wood
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2279Coating or impregnation improves soil repellency, soil release, or anti- soil redeposition qualities of fabric
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2279Coating or impregnation improves soil repellency, soil release, or anti- soil redeposition qualities of fabric
    • Y10T442/2287Fluorocarbon containing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Paper (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
CN201310108457.XA 2007-07-10 2008-06-23 向挠性纤维质非织造基底赋予表面效果的方法 Expired - Fee Related CN103224585B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/827,006 US8071489B2 (en) 2007-07-10 2007-07-10 Amphoteric fluorochemicals for paper
US11/827006 2007-07-10
CN200880023960.2A CN101687956B (zh) 2007-07-10 2008-06-23 用于纸材的两性含氟化合物

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN200880023960.2A Division CN101687956B (zh) 2007-07-10 2008-06-23 用于纸材的两性含氟化合物

Publications (2)

Publication Number Publication Date
CN103224585A CN103224585A (zh) 2013-07-31
CN103224585B true CN103224585B (zh) 2016-03-30

Family

ID=39711842

Family Applications (2)

Application Number Title Priority Date Filing Date
CN200880023960.2A Expired - Fee Related CN101687956B (zh) 2007-07-10 2008-06-23 用于纸材的两性含氟化合物
CN201310108457.XA Expired - Fee Related CN103224585B (zh) 2007-07-10 2008-06-23 向挠性纤维质非织造基底赋予表面效果的方法

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN200880023960.2A Expired - Fee Related CN101687956B (zh) 2007-07-10 2008-06-23 用于纸材的两性含氟化合物

Country Status (7)

Country Link
US (1) US8071489B2 (enExample)
EP (2) EP2167553A1 (enExample)
JP (2) JP5424495B2 (enExample)
CN (2) CN101687956B (enExample)
AU (1) AU2008275400B2 (enExample)
CA (1) CA2688152C (enExample)
WO (1) WO2009009280A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102365340B (zh) * 2009-03-25 2016-05-04 大金工业株式会社 包含含氟聚合物的表面活性剂
ES2527829T3 (es) * 2009-08-18 2015-01-30 Daikin Industries, Ltd. Copolímero, agente de tratamiento para papel y papel tratado
EP2500394B1 (en) 2009-11-13 2016-09-28 Asahi Glass Company, Limited Water-resistant/oil-resistant agent composition, article treated with the composition, and processes for production of the composition and the article
CA2802229C (en) 2010-06-29 2019-01-29 Surmodics, Inc. Fluorinated polymers and lubricious coatings
US9777170B2 (en) 2014-02-25 2017-10-03 The Chemours Company Tt, Llc Fluorinated polymer additives derived using hydrophilic chain transfer agents for architectural coatings
JP6578285B2 (ja) 2014-08-19 2019-09-18 株式会社クラレ 紙複合体、包装材料及び紙複合体の製造方法
JP6645971B2 (ja) * 2014-09-02 2020-02-14 国立大学法人九州大学 含フッ素高分岐ポリマー及び生体分子吸着抑制表面
ES2918127T3 (es) * 2017-12-18 2022-07-13 Agc Inc Composición impermeable al agua y al aceite para papel y método para su producción, así como papel impermeable al agua y al aceite y método para su producción
CN111040072B (zh) * 2019-11-27 2022-07-19 广州熵能创新材料股份有限公司 乙烯基系含氟共聚物、含有该乙烯基系含氟共聚物的防水防油组合物及其应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039072A1 (en) * 1996-04-12 1997-10-23 E.I. Du Pont De Nemours And Company Waterborne fluoropolymer solutions for treating hard surfaces
CN1222166A (zh) * 1996-04-12 1999-07-07 纳幕尔杜邦公司 用氟化学品共聚物处理的耐油、耐水和耐溶剂的纸
CN1309673A (zh) * 1998-06-19 2001-08-22 纳幕尔杜邦公司 用于织物去污的聚合物组合物
WO2001079313A1 (en) * 2000-04-14 2001-10-25 Ciba Spezialitätenchemie Pfersee GmbH Fluorinated polymeric paper sizes and soil-release agents
CN1468266A (zh) * 2000-08-07 2004-01-14 ���з��ɹ�˾ 新型含氟共聚物,其在基底的涂层和浸渍方面中的应用以及如此处理过的基底

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1400038A (fr) 1963-07-16 1965-05-21 Colgate Palmolive Co Produit pour le traitement des textiles et procédé pour son application
US3758543A (en) 1967-04-25 1973-09-11 Allied Chem Novel sulfates and method for their preparation
CH927769D (enExample) 1968-07-01 1900-01-01
BE787405A (fr) 1971-08-11 1973-02-12 Blochl Walter Esters acryliques contenant des groupes perfluoroalkyles et leurs polymerisats
JPS5218791B2 (enExample) 1972-09-07 1977-05-24
US3843579A (en) 1973-01-31 1974-10-22 Du Pont Water in oil fluoropolymer emulsion containing hydrocarbon or halogenated hydrocarbon solvent
US4147851A (en) 1978-06-13 1979-04-03 E. I. Du Pont De Nemours And Company Fluorine-containing oil- and water-repellant copolymers
FR2476097A1 (enExample) * 1980-02-19 1981-08-21 Ugine Kuhlmann
JPS58220894A (ja) 1982-06-15 1983-12-22 大日本インキ化学工業株式会社 紙用処理剤
US4582882A (en) 1982-10-13 1986-04-15 Minnesota Mining And Manufacturing Company Fluorochemical copolymers and ovenable paperboard and textile fibers treated therewith
US4595518A (en) 1985-07-10 1986-06-17 E. I. Du Pont De Nemours And Company Coating fibrous substrates with fluoropolymer amphoteric polymer and surfactants
FR2588555B1 (fr) 1985-10-16 1987-12-11 Atochem Monomeres acryliques fluores, polymeres en derivant et leur application au traitement hydrofuge et oleofuge de substrats divers
US5010141A (en) 1989-10-25 1991-04-23 Ciba-Geigy Corporation Reactive silicone and/or fluorine containing hydrophilic prepolymers and polymers thereof
FR2683535B1 (fr) 1991-11-12 1994-10-28 Atochem Nouveaux copolymeres fluores et leur utilisation pour le revetement et l'impregnation de substrats divers.
EP0701020A2 (de) 1994-07-27 1996-03-13 Bayer Ag Öl- und wasserabweisende Papiere, Verfahren zu ihrer Herstellung und neue fluorhaltige Copolymerisate hierzu
CA2191229C (en) 1995-03-31 2006-10-10 Charles D. Huber Aqueous oil and water repellent compositions
FR2756290B1 (fr) 1996-11-27 1998-12-31 Atochem Elf Sa Copolymeres fluores pour le traitement oleophobe et hydrophobe de substrats divers
FR2801890A1 (fr) 1999-12-06 2001-06-08 Atofina Nouveaux copolymeres fluores pour le traitement hydrophobe et oleophobe de substrats divers
US6699933B2 (en) 2001-08-07 2004-03-02 Ppg Industries Ohio, Inc. Method of coating coils using a high solids fluorocarbon coating composition
US20050234205A1 (en) 2002-06-13 2005-10-20 Fumihiko Yamaguchi Copolymer, paper-treating agent, and processed paper
CN1934149B (zh) 2004-03-23 2010-11-24 旭硝子株式会社 耐水耐油剂组合物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039072A1 (en) * 1996-04-12 1997-10-23 E.I. Du Pont De Nemours And Company Waterborne fluoropolymer solutions for treating hard surfaces
CN1222166A (zh) * 1996-04-12 1999-07-07 纳幕尔杜邦公司 用氟化学品共聚物处理的耐油、耐水和耐溶剂的纸
CN1309673A (zh) * 1998-06-19 2001-08-22 纳幕尔杜邦公司 用于织物去污的聚合物组合物
WO2001079313A1 (en) * 2000-04-14 2001-10-25 Ciba Spezialitätenchemie Pfersee GmbH Fluorinated polymeric paper sizes and soil-release agents
CN1422289A (zh) * 2000-04-14 2003-06-04 西巴特殊化学品普法希股份有限公司 氟化的聚合纸上施胶剂和去污剂
CN1468266A (zh) * 2000-08-07 2004-01-14 ���з��ɹ�˾ 新型含氟共聚物,其在基底的涂层和浸渍方面中的应用以及如此处理过的基底

Also Published As

Publication number Publication date
JP2010533230A (ja) 2010-10-21
AU2008275400B2 (en) 2013-08-22
WO2009009280A1 (en) 2009-01-15
CN103224585A (zh) 2013-07-31
JP5892994B2 (ja) 2016-03-23
CA2688152C (en) 2015-04-28
CA2688152A1 (en) 2009-01-15
EP2532690A1 (en) 2012-12-12
HK1187936A1 (zh) 2014-04-17
US20090017321A1 (en) 2009-01-15
US8071489B2 (en) 2011-12-06
JP5424495B2 (ja) 2014-02-26
CN101687956A (zh) 2010-03-31
JP2014043667A (ja) 2014-03-13
AU2008275400A1 (en) 2009-01-15
EP2167553A1 (en) 2010-03-31
CN101687956B (zh) 2014-03-12

Similar Documents

Publication Publication Date Title
CN103224585B (zh) 向挠性纤维质非织造基底赋予表面效果的方法
TW424121B (en) Oil, water and solvent resistant paper by treatment with fluorochemical copolymers
US7485688B2 (en) Water and oil producing composition
CA2771339C (en) Water and oil resistant agent for paper, treatment process and paper
US20080202384A1 (en) Fluoropolymer compositions and method of use
JPH0377206B2 (enExample)
KR20100087143A (ko) 함불소 공중합체 및 내수 내유제 조성물, 그리고 그 제조 방법
FR2683535A1 (fr) Nouveaux copolymeres fluores et leur utilisation pour le revetement et l'impregnation de substrats divers.
US20010020077A1 (en) Novel fluorocopolymers for the hydrophobic and oleophobic treatment of various substrates
US7754624B2 (en) Perfluoroalkyl substituted acrylate monomers and polymers thereof
US20040026053A1 (en) Novel fluorinated copolymers, their use for coating and impregnating substrates, and resulting treated substrates
US20110178260A1 (en) Fluoropolymer compositions and method of use
AU2004202453B2 (en) Use for the oleo-repellent paper sizing of carboxylic perfluoropolyethers
WO2021093941A1 (en) Wood coating formulation
CN103261120A (zh) 氟化共聚物
HK1187936B (en) A method of imparting surface effects to flexible, fibrous, nonwoven substrates
HK1142346A (en) Amphoteric fluorochemicals for paper
AU2013254961A1 (en) Amphoteric fluorochemicals for paper

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1187936

Country of ref document: HK

C14 Grant of patent or utility model
GR01 Patent grant
REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1187936

Country of ref document: HK

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20171228

Address after: Delaware, USA

Patentee after: Como Efsee Co.,Ltd.

Address before: Wilmington, Delaware, USA

Patentee before: E. I. du Pont de Nemours and Co.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160330

Termination date: 20200623