GB1040975A – Preparation of polyoxymethylene
– Google Patents
GB1040975A – Preparation of polyoxymethylene
– Google Patents
Preparation of polyoxymethylene
Info
Publication number
GB1040975A
GB1040975A
GB18819/65A
GB1881965A
GB1040975A
GB 1040975 A
GB1040975 A
GB 1040975A
GB 18819/65 A
GB18819/65 A
GB 18819/65A
GB 1881965 A
GB1881965 A
GB 1881965A
GB 1040975 A
GB1040975 A
GB 1040975A
Authority
GB
United Kingdom
Prior art keywords
polyoxymethylene
preparation
rcobf4
trioxan
propiolactone
Prior art date
1964-05-04
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
GB18819/65A
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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.)
1964-05-04
Filing date
1965-05-04
Publication date
1966-09-01
1965-05-04
Application filed by Denki Kagaku Kogyo KK
filed
Critical
Denki Kagaku Kogyo KK
1966-09-01
Publication of GB1040975A
publication
Critical
patent/GB1040975A/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
C08G2/08—Polymerisation 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
C08G2/12—Polymerisation of acetaldehyde or cyclic oligomers thereof
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
C08G2/14—Polymerisation of single aldehydes not provided for in groups C08G2/08 – C08G2/12
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
C08G2/16—Polymerisation of single ketones
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
C08G2/18—Copolymerisation of aldehydes or ketones
Abstract
Trioxan is polymerized in the presence of a catalyst of the formula RCOBF4, where R is an alkyl, aryl or aralkyl radical. Specified catalysts are the complexes of boron trifluoride with the acyl fluoride acetyl, propionyl and benzoyl. Acyclic ether, e.g. ethylene oxide, propylene oxide, 1,3-dioxolane or beta-propiolactone may be present as a comonomer. The polymerization may take place by bulk, in solution (ethylene dichloride or benzene) or suspension.
GB18819/65A
1964-05-04
1965-05-04
Preparation of polyoxymethylene
Expired
GB1040975A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP2507964
1964-05-04
Publications (1)
Publication Number
Publication Date
GB1040975A
true
GB1040975A
(en)
1966-09-01
Family
ID=12155902
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB18819/65A
Expired
GB1040975A
(en)
1964-05-04
1965-05-04
Preparation of polyoxymethylene
Country Status (3)
Country
Link
US
(1)
US3407177A
(en)
DE
(1)
DE1301095B
(en)
GB
(1)
GB1040975A
(en)
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AT220366B
(en)
*
1959-01-27
1962-03-26
Hoechst Ag
Process for the production of high molecular weight, thermoplastic polyacetals
FR1271297A
(en)
*
1959-08-29
1961-09-08
Degussa
Process for preparing thermally and chemically stable polyoxymethylenes
US3122525A
(en)
*
1960-05-12
1964-02-25
Degussa
Production of polyoxymethylenes
NL271273A
(en)
*
1960-11-15
GB1040172A
(en)
*
1962-03-19
1966-08-24
British Industrial Plastics
Improvements relating to the manufacture of polymeric products from trioxan
1965
1965-04-28
US
US451634A
patent/US3407177A/en
not_active
Expired – Lifetime
1965-05-03
DE
DED47156A
patent/DE1301095B/en
active
Pending
1965-05-04
GB
GB18819/65A
patent/GB1040975A/en
not_active
Expired
Also Published As
Publication number
Publication date
DE1301095B
(en)
1969-08-14
US3407177A
(en)
1968-10-22
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