JPS6111969B2 - - Google Patents

Info

Publication number
JPS6111969B2
JPS6111969B2 JP52035534A JP3553477A JPS6111969B2 JP S6111969 B2 JPS6111969 B2 JP S6111969B2 JP 52035534 A JP52035534 A JP 52035534A JP 3553477 A JP3553477 A JP 3553477A JP S6111969 B2 JPS6111969 B2 JP S6111969B2
Authority
JP
Japan
Prior art keywords
catalyst
reaction
carbon atoms
thf
reactor
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
Application number
JP52035534A
Other languages
English (en)
Japanese (ja)
Other versions
JPS52138598A (en
Inventor
Edowaado Hainsoon Jooji
Matsukusueru Robinson Iban
Purutsukumeiru Gaafuriido
Uiruson Girubaato Uorutaa
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.)
EIDP Inc
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
Priority to JP3553477A priority Critical patent/JPS52138598A/ja
Publication of JPS52138598A publication Critical patent/JPS52138598A/ja
Publication of JPS6111969B2 publication Critical patent/JPS6111969B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyethers (AREA)
JP3553477A 1976-03-31 1977-03-31 Process for preparing poly*tetramethylene ether*glycol Granted JPS52138598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3553477A JPS52138598A (en) 1976-03-31 1977-03-31 Process for preparing poly*tetramethylene ether*glycol

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US67255576A 1976-03-31 1976-03-31
US67255676A 1976-03-31 1976-03-31
US75121176A 1976-12-16 1976-12-16
US76751077A 1977-02-14 1977-02-14
JP3553477A JPS52138598A (en) 1976-03-31 1977-03-31 Process for preparing poly*tetramethylene ether*glycol

Publications (2)

Publication Number Publication Date
JPS52138598A JPS52138598A (en) 1977-11-18
JPS6111969B2 true JPS6111969B2 (no) 1986-04-05

Family

ID=27521709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3553477A Granted JPS52138598A (en) 1976-03-31 1977-03-31 Process for preparing poly*tetramethylene ether*glycol

Country Status (1)

Country Link
JP (1) JPS52138598A (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162796A (en) * 1978-06-14 1979-12-24 Du Pont Preparation of improved copolyether glycol
JPS5953285B2 (ja) * 1978-06-29 1984-12-24 イ−・アイ・デユ・ポン・ドウ・ヌム−ル・アンド・カンパニ− 末端がエステル形のコポリエ−テルグリコ−ルの製法
US5118869A (en) * 1991-02-13 1992-06-02 E. I. Du Pont De Nemours And Company Polymerizing tetrahydrofuran to produce polytetramethylene ether glycol using a modified fluorinated resin catalyst containing sulfonic acid groups
JP5414049B2 (ja) * 2008-10-10 2014-02-12 独立行政法人産業技術総合研究所 コハク酸系共重合体の製造方法とその共重合体
BRPI0923998A2 (pt) * 2009-04-15 2016-01-26 Invista Tech Sarl método para tratar resina de ácido perfluorosulfônico, resina de ácido perfluorosulfônico e processo para fabricar poliéter glicol ou copoliéter glicol
EP2470586A4 (en) * 2009-08-24 2015-01-21 Invista Technologies Srl IMPROVED PROCESS FOR THE MANUFACTURE OF POLYETHER GLYCOL
CN110291132B (zh) * 2017-02-16 2021-12-14 株式会社可乐丽 共聚聚醚多元醇、聚氨基甲酸酯和共聚聚醚多元醇的制造方法

Also Published As

Publication number Publication date
JPS52138598A (en) 1977-11-18

Similar Documents

Publication Publication Date Title
US4163115A (en) Preparation of esters of poly-(tetramethylene ether) glycol
US4153786A (en) Method for preparing ester end-capped copolyether glycols
JP2976383B2 (ja) 酸性酸化ジルコニア触媒を用いたポリテトラメチレンエーテルグリコールの製造方法
EP0571506B1 (en) Polymerizing tetrahydrofuran to produce polytetramethylene ether glycol using a modified fluorinated resin catalyst containing sulfonic acid groups
US3637633A (en) Peroxy compounds
JPS6111969B2 (no)
GB1575529A (en) Polytetramethylene ether glycol esters
JPH0571606B2 (no)
US5130470A (en) Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic acid/maleic anhydride mixture as molecular weight control agent
EP0160487A2 (en) Fluoroolefin polymerization process
EP0358589B1 (en) Synthesis of high vinyl polybutadiene utilizing a molybdenum catalyst system
JPS637571B2 (no)
JP3901219B2 (ja) ポリテトラメチレンエーテルの二酢酸エステルを回収するための改良された方法
EP0770099B1 (en) Process for preparing poly(vinyl trifluoroacetate) and poly(vinyl trifluoroacetate/vinyl ester) copolymers in supercritical co 2?
US3455974A (en) Alkoxy vanadyl fluorides and their preparation
US3839313A (en) Catalysts for the polymerization of olefins
JP2000501766A (ja) ポリテトラメチレンエーテルの二酢酸エステルを製造するための改良された方法
JPS6129366B2 (no)
CA1094100A (en) Preparation of esters of poly-(tetramethylene ether) glycol
JPS6147857B2 (no)
JPS6251943B2 (no)
JPS5837286B2 (ja) 低分子量の第三級アルコ−ルを製造する方法
CA1088102A (en) Method for preparing copolyether glycols
EP0939752A1 (en) Manufacture of fluorinated compounds
CN115975168A (zh) 一种室温条件下六氟环氧丙烷可控聚合的方法