FR1600355A - - Google Patents
Info
- Publication number
- FR1600355A FR1600355A FR1600355DA FR1600355A FR 1600355 A FR1600355 A FR 1600355A FR 1600355D A FR1600355D A FR 1600355DA FR 1600355 A FR1600355 A FR 1600355A
- Authority
- FR
- France
- Prior art keywords
- polymer
- polymers
- groups
- fluorine
- end groups
- 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
Links
- 229920000642 polymer Polymers 0.000 abstract 5
- 229910052731 fluorine Inorganic materials 0.000 abstract 4
- 239000011737 fluorine Substances 0.000 abstract 4
- 229920002313 fluoropolymer Polymers 0.000 abstract 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 abstract 1
- QARLOMBMXGVKNV-UHFFFAOYSA-N 1,2,2-trifluoroethenesulfonyl fluoride Chemical compound FC(F)=C(F)S(F)(=O)=O QARLOMBMXGVKNV-UHFFFAOYSA-N 0.000 abstract 1
- NHJFHUKLZMQIHN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanoyl 2,2,3,3,3-pentafluoropropaneperoxoate Chemical compound FC(F)(F)C(F)(F)C(=O)OOC(=O)C(F)(F)C(F)(F)F NHJFHUKLZMQIHN-UHFFFAOYSA-N 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 abstract 1
- 239000004160 Ammonium persulphate Substances 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- -1 NgO Substances 0.000 abstract 1
- 235000012501 ammonium carbonate Nutrition 0.000 abstract 1
- 239000001099 ammonium carbonate Substances 0.000 abstract 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 abstract 1
- 235000019395 ammonium persulphate Nutrition 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 150000004292 cyclic ethers Chemical class 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 125000001424 substituent group Chemical group 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2287—After-treatment
- C08J5/2293—After-treatment of fluorine-containing membranes
-
- 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
- C08F8/00—Chemical modification by after-treatment
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
- C08F8/22—Halogenation by reaction with free halogens
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised 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 at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised 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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised 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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
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)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69873168A | 1968-01-18 | 1968-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1600355A true FR1600355A (enrdf_load_stackoverflow) | 1970-07-20 |
Family
ID=24806441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1600355D Expired FR1600355A (enrdf_load_stackoverflow) | 1968-01-18 | 1968-12-31 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4623245B1 (enrdf_load_stackoverflow) |
| DE (1) | DE1901872B2 (enrdf_load_stackoverflow) |
| FR (1) | FR1600355A (enrdf_load_stackoverflow) |
| GB (1) | GB1210794A (enrdf_load_stackoverflow) |
| NL (1) | NL6900832A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0037744A1 (en) * | 1980-04-09 | 1981-10-14 | E.I. Du Pont De Nemours And Company | Protective clothing for confining toxic compounds using film of highly fluorinated ion exchange polymer |
| EP0037745A1 (en) * | 1980-04-09 | 1981-10-14 | E.I. Du Pont De Nemours And Company | Waterproof protective covers comprising a film of highly fluorinated ion exchange polymer |
Families Citing this family (73)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599386A (en) * | 1984-10-18 | 1986-07-08 | E. I. Du Pont De Nemours And Company | Heat stable tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymers |
| US4743658A (en) * | 1985-10-21 | 1988-05-10 | E. I. Du Pont De Nemours And Company | Stable tetrafluoroethylene copolymers |
| US4675380A (en) * | 1985-10-25 | 1987-06-23 | E. I. Du Pont De Nemours And Company | Melt-processible tetrafluoroethylene/perfluoroolefin copolymer granules and processes for preparing them |
| US4742122A (en) * | 1985-10-25 | 1988-05-03 | E. I. Du Pont De Nemours And Company | Melt-processible tetrafluoroethylene/perfluoroolefin copolymers and processes for preparing them |
| DE3585160D1 (de) * | 1985-11-08 | 1992-02-20 | Du Pont | Verfahren zur behandlung von schmelzverarbeitbaren copolymeren von tetrafluoraethylen und perfluoralkylvinylaether. |
| EP0222945B1 (en) * | 1985-11-08 | 1992-01-02 | E.I. Du Pont De Nemours And Company | Melt-processible tetrafluoroethylene/perfluoroolefin copolymers and processes for preparing them |
| EP0312077B1 (en) * | 1987-10-16 | 1994-01-26 | E.I. Du Pont De Nemours And Company | Conductive fluoropolymers |
| US4946902A (en) * | 1988-05-27 | 1990-08-07 | E. I. Du Pont De Nemours And Company | Process for the setabilization of fluoropolymers |
| US5045605A (en) * | 1988-05-27 | 1991-09-03 | E. I. Du Pont De Nemours And Company | Process for the stabilization of fluoropolymers |
| US5281680A (en) * | 1993-01-14 | 1994-01-25 | E. I. Du Pont De Nemours And Company | Polymerization of fluorinated copolymers |
| US5726214A (en) * | 1996-12-26 | 1998-03-10 | E. I. Du Pont De Nemours And Company | Self-foaming fluoropolymer composition |
| DE19805832A1 (de) * | 1998-02-13 | 1999-08-19 | Dyneon Gmbh | Mischungen aus thermoplastischen Fluorpolymeren |
| US6541588B1 (en) | 1999-01-29 | 2003-04-01 | 3M Innovative Properties Company | Tetrafluoroethylene/hexafluoropropylene copolymers with higher drawability |
| DE19964006A1 (de) * | 1999-12-30 | 2001-07-12 | Dyneon Gmbh | Tetrafluorethylen-Copolymere |
| EP1244713B1 (en) | 2000-06-01 | 2006-05-03 | 3M Innovative Properties Company | Methods for the production of high purity fluoropolymers |
| DE10033514A1 (de) | 2000-07-11 | 2002-02-07 | Dyneon Gmbh | FEP mit erhöhter Wechselbiegefestigkeit und geringen Düsenablagerungen |
| US6583226B1 (en) | 2001-06-28 | 2003-06-24 | 3M Innovative Properties Company | FEP with increased flexural fatigue strength and a low level of die deposits |
| US7060772B2 (en) | 2001-09-20 | 2006-06-13 | 3M Innovative Properties Company | Fluoropolymers from tetrafluoroethylene and perfluoro(alkoxyalkyl vinyl) ether |
| US6743508B2 (en) | 2002-01-17 | 2004-06-01 | Daikin America, Inc. | Fep pellet |
| US6703464B2 (en) | 2002-01-17 | 2004-03-09 | Daikin America, Inc. | Flourine-containing copolymer |
| US6838545B2 (en) | 2002-11-08 | 2005-01-04 | E. I. Du Pont De Nemours And Company | Reaction of fluoropolymer melts |
| CN100389518C (zh) | 2003-01-20 | 2008-05-21 | 旭硝子株式会社 | 固体高分子型燃料电池用电解质材料的制造方法及固体高分子型燃料电池用膜电极接合体 |
| EP1635412A4 (en) | 2003-05-13 | 2007-06-13 | Asahi Glass Co Ltd | ELECTROLYTE POLYMER FOR A FESTPOLYMER FUEL CELL, METHOD FOR ITS PREPARATION AND MEMBRANE ELECTRODE ASSEMBLY |
| US7122609B2 (en) | 2003-05-14 | 2006-10-17 | E. I. Du Pont De Nemours And Company | High melt flow fluoropolymer |
| WO2005028522A1 (ja) * | 2003-09-10 | 2005-03-31 | Asahi Kasei Chemicals Corporation | 安定化フルオロポリマー及びその製造方法 |
| DE602004027068D1 (de) | 2003-11-20 | 2010-06-17 | Daikin Ind Ltd | Verfahren zur herstellung von fluorhaltigen polymeren und fluorhaltige polymere |
| EP1702933B1 (en) * | 2003-12-17 | 2019-02-20 | Daikin Industries, Ltd. | Fluoropolymer, process for producing fluoropolymer, electrolyte film, object having immobilized active substance, and solid polymer electrolyte type fuel cell |
| CA2577710A1 (en) | 2004-08-18 | 2006-02-23 | Asahi Glass Company, Limited | Electrolyte polymer for fuel cells, process for its production, electrolyte membrane and membrane/electrode assembly |
| US7342081B2 (en) | 2004-12-28 | 2008-03-11 | 3M Innovative Properties Company | Fluoropolymer compositions, coated articles, and method of making the same |
| JP4916668B2 (ja) * | 2005-03-01 | 2012-04-18 | 旭化成イーマテリアルズ株式会社 | 高安定性フッ素化スルホン酸ポリマー |
| US7214740B2 (en) * | 2005-05-03 | 2007-05-08 | 3M Innovative Properties Company | Fluorinated ionomers with reduced amounts of carbonyl end groups |
| EP1972024B1 (en) * | 2005-12-22 | 2012-12-19 | E.I. Du Pont De Nemours And Company | Chemically stabilized ionomers containing inorganic fillers |
| KR100967286B1 (ko) * | 2005-12-22 | 2010-07-01 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 무기 충전제를 함유하는 화학적으로 안정화된 이오노머의제조 방법 |
| US7776970B2 (en) | 2006-02-03 | 2010-08-17 | Daikin Industries, Ltd. | Method for producing -SO3H group-containing fluoropolymer and -SO3H group-containing fluoropolymer |
| DE602007003750D1 (de) | 2006-10-03 | 2010-01-21 | 3M Innovative Properties Co | Mehrschichtige artikel und verfahren zur erhöhung ihrer ablöselebensdauer |
| EP1914251A1 (en) | 2006-10-17 | 2008-04-23 | Solvay Solexis S.p.A. | Process for stabilizing fluoropolymer having ion exchange groups |
| JPWO2008047906A1 (ja) * | 2006-10-20 | 2010-02-25 | ダイキン工業株式会社 | 含フッ素共重合体、電線及びその製造方法 |
| US7973091B2 (en) | 2006-12-20 | 2011-07-05 | E. I. Du Pont De Nemours And Company | Process for producing re-dispersable particles of highly fluorinated polymer |
| US7989513B2 (en) | 2006-12-20 | 2011-08-02 | E.I. Du Pont De Nemours And Company | Process for producing dispersions of highly fluorinated polymers |
| US20110217621A1 (en) | 2008-12-23 | 2011-09-08 | E. I. Du Pont De Nemours And Company | Process to produce catalyst coated membranes for fuel cell applications |
| US9133316B2 (en) | 2009-09-18 | 2015-09-15 | Asahi Kasei E-Materials Corporation | Electrolyte emulsion and process for producing same |
| CN103348520A (zh) | 2010-12-20 | 2013-10-09 | 纳幕尔杜邦公司 | 用作燃料电池的一个或多个电极的高分子量离聚物和离子传导性组合物 |
| CN103283072A (zh) | 2010-12-20 | 2013-09-04 | 纳幕尔杜邦公司 | 用作燃料电池的一个或多个电极的离聚物和离子传导性组合物 |
| US20130245219A1 (en) | 2010-12-20 | 2013-09-19 | E I Du Pont De Nemours And Company | Ionomers and ionically conductive compositions |
| KR20140043117A (ko) | 2011-06-17 | 2014-04-08 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 개선된 콤포지트 중합체 전해질막 |
| EP2785748B1 (en) * | 2011-11-30 | 2016-04-27 | Solvay Specialty Polymers Italy S.p.A. | Process for reducing unstable end-groups in fluorinated polymers |
| US20130303708A1 (en) * | 2012-05-09 | 2013-11-14 | E I Du Pont De Nemours And Company | Fluoropolymer Dispersion Treatment Employing Hypochlorite Salts or Nitrite Salts to Reduce Fluoropolymer Resin Discoloration |
| US20130303710A1 (en) * | 2012-05-09 | 2013-11-14 | E I Du Pont De Nemours And Company | Fluoropolymer Dispersion Treatment Employing Hydrogen Peroxide to Reduce Fluoropolymer Resin Discoloration |
| US9175112B2 (en) | 2012-05-09 | 2015-11-03 | The Chemours Company Fc, Llc | Drying wet fluoropolymer resin and exposing to oxygen source to reduce discoloration |
| US9175110B2 (en) | 2012-05-09 | 2015-11-03 | The Chemours Company Fc, Llc | Fluoropolymer resin treatment employing melt extrusion and exposure to oxygen source to reduce discoloration |
| US8785560B2 (en) | 2012-05-09 | 2014-07-22 | E I Du Pont De Nemours And Company | Employing pretreatment and fluorination of fluoropolymer resin to reduce discoloration |
| US9175115B2 (en) | 2012-05-09 | 2015-11-03 | The Chemours Company Fc, Llc | Fluoropolymer resin treatment employing heating and oxygen source to reduce discoloration |
| US20130303718A1 (en) * | 2012-05-09 | 2013-11-14 | E I Du Pont De Nemours And Company | Fluoropolymer Dispersion Treatment Employing Oxidizing Agent to Reduce Fluoropolymer Resin Discoloration |
| US8785516B2 (en) | 2012-05-09 | 2014-07-22 | E I Du Pont De Nemours And Company | Fluoropolymer dispersion treatment employing ultraviolet light and oxygen source to reduce fluoropolymer resin discoloration |
| US9574027B2 (en) | 2013-03-11 | 2017-02-21 | The Chemours Company Fc, Llc | Fluoropolymer resin treatment employing sorbent to reduce fluoropolymer resin discoloration |
| US10730980B2 (en) | 2015-02-12 | 2020-08-04 | 3M Innovative Properties Company | Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups |
| WO2016130911A1 (en) | 2015-02-12 | 2016-08-18 | 3M Innovative Properties Company | Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups and methods of making and using the same |
| EP3256502B1 (en) | 2015-02-12 | 2019-08-14 | 3M Innovative Properties Company | Tetrafluoroethylene/hexafluoropropylene copolymers having pendant sulfonyl groups |
| WO2018034839A1 (en) | 2016-08-17 | 2018-02-22 | 3M Innovative Properties Company | Tetrafluoroethylene and perfluorinated allyl ether copolymers |
| US11014999B2 (en) * | 2018-04-24 | 2021-05-25 | Inhance Technologies, LLC | Systems and methods for processing fluoropolymer materials and related workpieces |
| JP6614385B2 (ja) | 2018-04-26 | 2019-12-04 | ダイキン工業株式会社 | 精製フルオロポリマーの製造方法 |
| CN114270620A (zh) | 2019-08-26 | 2022-04-01 | 大金工业株式会社 | 非水电解液电池用部件 |
| CN114222654A (zh) | 2019-08-26 | 2022-03-22 | 大金工业株式会社 | 注射成型方法 |
| WO2021214664A1 (en) | 2020-04-21 | 2021-10-28 | 3M Innovative Properties Company | Particles including polytetrafluoroethylene and process for making a three-dimensional article |
| JP7174306B2 (ja) | 2021-02-26 | 2022-11-17 | ダイキン工業株式会社 | 射出成形体およびその製造方法 |
| EP4299274A4 (en) | 2021-02-26 | 2025-02-19 | Daikin Industries, Ltd. | INJECTION-MOLDED BODY AND MANUFACTURING METHOD THEREFOR |
| CN116981874A (zh) | 2021-02-26 | 2023-10-31 | 大金工业株式会社 | 管接头和管接头的制造方法 |
| WO2022181244A1 (ja) | 2021-02-26 | 2022-09-01 | ダイキン工業株式会社 | 射出成形体およびその製造方法 |
| KR20230130736A (ko) * | 2021-02-26 | 2023-09-12 | 다이킨 고교 가부시키가이샤 | 사출 성형체 및 그 제조 방법 |
| WO2023277140A1 (ja) * | 2021-06-30 | 2023-01-05 | ダイキン工業株式会社 | 高純度フルオロポリマー含有組成物の製造方法および高純度フルオロポリマー含有組成物 |
| WO2023282188A1 (ja) * | 2021-07-07 | 2023-01-12 | Ａｇｃ株式会社 | ペルフルオロ化合物の製造方法および含フッ素ポリマーの製造方法 |
| CN116640254B (zh) * | 2023-07-04 | 2024-09-13 | 四川红华实业有限公司 | 含氟热塑性聚合物不稳定端基的氟化处理方法及氟化系统 |
| CN116731226B (zh) * | 2023-07-04 | 2024-02-23 | 四川红华实业有限公司 | 一种含氟热塑性聚合物不稳定端基的氟化处理方法及应用 |
-
1968
- 1968-12-31 FR FR1600355D patent/FR1600355A/fr not_active Expired
-
1969
- 1969-01-15 DE DE19691901872 patent/DE1901872B2/de active Pending
- 1969-01-16 JP JP268569A patent/JPS4623245B1/ja active Pending
- 1969-01-16 GB GB272269A patent/GB1210794A/en not_active Expired
- 1969-01-17 NL NL6900832A patent/NL6900832A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0037744A1 (en) * | 1980-04-09 | 1981-10-14 | E.I. Du Pont De Nemours And Company | Protective clothing for confining toxic compounds using film of highly fluorinated ion exchange polymer |
| EP0037745A1 (en) * | 1980-04-09 | 1981-10-14 | E.I. Du Pont De Nemours And Company | Waterproof protective covers comprising a film of highly fluorinated ion exchange polymer |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6900832A (enrdf_load_stackoverflow) | 1969-07-22 |
| JPS4623245B1 (enrdf_load_stackoverflow) | 1971-07-02 |
| DE1901872B2 (de) | 1971-04-08 |
| DE1901872A1 (de) | 1970-02-19 |
| GB1210794A (en) | 1970-10-28 |
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