GB1041611A – Process for the production of polyoxymethylene
– Google Patents
GB1041611A – Process for the production of polyoxymethylene
– Google Patents
Process for the production of polyoxymethylene
Info
Publication number
GB1041611A
GB1041611A
GB1681/64A
GB168164A
GB1041611A
GB 1041611 A
GB1041611 A
GB 1041611A
GB 1681/64 A
GB1681/64 A
GB 1681/64A
GB 168164 A
GB168164 A
GB 168164A
GB 1041611 A
GB1041611 A
GB 1041611A
Authority
GB
United Kingdom
Prior art keywords
polymerization
monomer
catalyst
trioxane
polymerized
Prior art date
1963-01-14
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
GB1681/64A
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.)
Seisan Kaihatsu Kagaku Kenkyusho
Zaidan Hojin Seisan Kaihatsu Kenkyusho
Original Assignee
Seisan Kaihatsu Kagaku Kenkyusho
Zaidan Hojin Seisan Kaihatsu Kenkyusho
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.)
1963-01-14
Filing date
1964-01-14
Publication date
1966-09-07
1964-01-14
Application filed by Seisan Kaihatsu Kagaku Kenkyusho, Zaidan Hojin Seisan Kaihatsu Kenkyusho
filed
Critical
Seisan Kaihatsu Kagaku Kenkyusho
1966-09-07
Publication of GB1041611A
publication
Critical
patent/GB1041611A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
C08G2/06—Catalysts
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
C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
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
C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
C08G2/28—Post-polymerisation treatments
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
C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
C08G2/38—Block or graft polymers prepared by polymerisation of aldehydes or ketones on to macromolecular compounds
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
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P20/00—Technologies relating to chemical industry
Y02P20/50—Improvements relating to the production of bulk chemicals
Y02P20/584—Recycling of catalysts
Abstract
Trioxane is polymerized in the solid phase by rapidly passing through a polymerization zone at not above 60 DEG C. a mixture of solid trioxan: containing less than 0.1% of water, and a liquid containing a catalyst and in which the trioxane is insoluble and stopping the polymerization when only a minor proportion of the monomer has been polymerized. The polymerization may take place continuously, the polymerization being stopped at 10 to 20% conversion of monomer and unreacted monomer and/or catalyst solution recycled to the polymerization zone. The catalyst may be a Friedel-Crafts catalyst, e.g. stannic chloride or boron trifluoride, a complex of the chloride with trichloroacetic acid or a complex of the trifluoride and diethyl ether. The polymerization may be carried out in a tower through which the reaction mixture is passed downwardly, the liquid phase being separated from the polymer and monomer in the lower part of the tower.
GB1681/64A
1963-01-14
1964-01-14
Process for the production of polyoxymethylene
Expired
GB1041611A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP185963
1963-01-14
Publications (1)
Publication Number
Publication Date
GB1041611A
true
GB1041611A
(en)
1966-09-07
Family
ID=11513255
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1681/64A
Expired
GB1041611A
(en)
1963-01-14
1964-01-14
Process for the production of polyoxymethylene
Country Status (4)
Country
Link
US
(1)
US3372145A
(en)
DE
(1)
DE1520845A1
(en)
GB
(1)
GB1041611A
(en)
SE
(1)
SE315415B
(en)
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1062920A
(en)
*
1963-12-28
1967-03-22
Asahi Chemical Ind
A process for preparing polyoxymethylene copolymers
CA959989A
(en)
*
1970-11-12
1974-12-24
Pierino Radici
Method of preparing high molecular weight polyoxymethylenes
DE4233308A1
(en)
*
1992-10-03
1994-04-07
Hoechst Ag
Polyacetal molding compositions with high impact strength, process for their preparation and their use
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2989509A
(en)
*
1957-10-21
1961-06-20
Celanese Corp
Trioxane polymer stabilization
US2989510A
(en)
*
1958-06-20
1961-06-20
Celanese Corp
High molecular weight polymer and process therefor
1964
1964-01-07
US
US336288A
patent/US3372145A/en
not_active
Expired – Lifetime
1964-01-11
SE
SE329/64A
patent/SE315415B/xx
unknown
1964-01-14
GB
GB1681/64A
patent/GB1041611A/en
not_active
Expired
1964-01-14
DE
DE19641520845
patent/DE1520845A1/en
active
Pending
Also Published As
Publication number
Publication date
SE315415B
(en)
1969-09-29
US3372145A
(en)
1968-03-05
DE1520845A1
(en)
1970-01-02
Similar Documents
Publication
Publication Date
Title
ES357126A1
(en)
1970-02-16
Production of propylene polymers
GB826289A
(en)
1959-12-31
Improvements in the polymerisation of olefines
GB1041611A
(en)
1966-09-07
Process for the production of polyoxymethylene
GB912355A
(en)
1962-12-05
Process of producing lower aromatic hydrocarbon-formaldehyde resin
GB864275A
(en)
1961-03-29
Improved polymers
GB1009884A
(en)
1965-11-17
Improved polymeric products
Stille et al.
1964
Cyclopolymerization of diepoxides
US2698319A
(en)
1954-12-28
Furfuryl alcohol polymer and continuous process for making the same
US2293023A
(en)
1942-08-11
Resins of the sulphur dioxide-olefin type
Kudaibergen et al.
2018
Constants and parameters of radical copolymerization of poly (ethylene glycol fumarate) with acrylic acid
GB1274347A
(en)
1972-05-17
Process for polymerisation of tetrahydrofuran
GB958518A
(en)
1964-05-21
Novel epoxy aldehyde polymers and process for making them
Price et al.
1967
The polymerization and copolymerization of trioxane
GB890913A
(en)
1962-03-07
Improved process for the polymerisation of alpha-olefins
US3355432A
(en)
1967-11-28
Polymerization of trioxane and norbornadiene
US2933484A
(en)
1960-04-19
Treatment of polyolefins
GB983201A
(en)
1965-02-10
Polymerisation process
ES382957A1
(en)
1972-12-16
Aqueous polymer dispersions containing p-aminobenzoic acid derivatives
US3240763A
(en)
1966-03-15
Copolymers of maleic anhydride
GB981008A
(en)
1965-01-20
Process for preparing copolymers
GB1072198A
(en)
1967-06-14
Highly crystalline polyethylene sulfide
Bevington et al.
1948
155. The cross-linking of vinyl polymers by Friedel–Crafts catalysts. Part I
SU479785A1
(en)
1975-08-05
The method of producing olefin copolymers
GB978543A
(en)
1964-12-23
Improvements in and relating to polyacrolein bisulphite adducts
ES385495A1
(en)
1973-05-01
Regulation of molecular weight of products obtained by the ring opening polymerization of cycloolefines
None