IT971107B - Procedimento per la polimerizzazio ne del tetraidrofurano - Google Patents

Procedimento per la polimerizzazio ne del tetraidrofurano

Info

Publication number
IT971107B
IT971107B IT31968/72A IT3196872A IT971107B IT 971107 B IT971107 B IT 971107B IT 31968/72 A IT31968/72 A IT 31968/72A IT 3196872 A IT3196872 A IT 3196872A IT 971107 B IT971107 B IT 971107B
Authority
IT
Italy
Prior art keywords
tetrahydrofuran
polymerization
procedure
Prior art date
Application number
IT31968/72A
Other languages
English (en)
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Application granted granted Critical
Publication of IT971107B publication Critical patent/IT971107B/it

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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyethers (AREA)
IT31968/72A 1971-11-22 1972-11-22 Procedimento per la polimerizzazio ne del tetraidrofurano IT971107B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46093933A JPS525080B2 (it) 1971-11-22 1971-11-22

Publications (1)

Publication Number Publication Date
IT971107B true IT971107B (it) 1974-04-30

Family

ID=14096224

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31968/72A IT971107B (it) 1971-11-22 1972-11-22 Procedimento per la polimerizzazio ne del tetraidrofurano

Country Status (9)

Country Link
US (1) US3891715A (it)
JP (1) JPS525080B2 (it)
CA (1) CA974344A (it)
DE (1) DE2256416B2 (it)
ES (1) ES408706A1 (it)
FR (1) FR2160891B1 (it)
GB (1) GB1375749A (it)
IT (1) IT971107B (it)
NL (1) NL162404C (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121582A (en) * 1978-03-15 1979-09-20 Matsushita Electric Works Ltd Rotatable hanger for lighting instrument
JPS59124932A (ja) * 1983-01-04 1984-07-19 Hitachi Maxell Ltd 有機物ポリマ−電解質
US5001277A (en) * 1989-02-14 1991-03-19 Arco Chemical Technology, Inc. Polymerization of tetrahydrofuran with fuming sulphuric acid and a complex anion cocatalyst
US20080256905A1 (en) * 2007-04-23 2008-10-23 Michael Graf Valve bag placing system and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856370A (en) * 1953-09-09 1958-10-14 Du Pont Process for polymerizing cyclic ethers with phosphorous pentafluoride
US2751419A (en) * 1954-09-13 1956-06-19 Du Pont Process for purification of polytetramethyleneether
US3254056A (en) * 1960-05-23 1966-05-31 Goodyear Tire & Rubber Polyurethane elastomers from a polyether bis-chloroformate and a diamine
US3358042A (en) * 1963-09-20 1967-12-12 Quaker Oats Co Process for recovering polytetramethylene ether glycol
US3454652A (en) * 1966-09-22 1969-07-08 Ouaker Oats Co The Process for production of tetrahydrofuran polymers
JPS4825438B1 (it) * 1969-03-03 1973-07-28
JPS4825439B1 (it) * 1969-03-18 1973-07-28

Also Published As

Publication number Publication date
NL162404B (nl) 1979-12-17
DE2256416B2 (de) 1977-11-17
NL162404C (nl) 1980-05-16
US3891715A (en) 1975-06-24
JPS4856794A (it) 1973-08-09
FR2160891A1 (it) 1973-07-06
DE2256416A1 (de) 1973-05-30
FR2160891B1 (it) 1975-03-28
ES408706A1 (es) 1975-11-01
NL7215838A (it) 1973-05-24
GB1375749A (it) 1974-11-27
JPS525080B2 (it) 1977-02-09
CA974344A (en) 1975-09-09

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