GB1387863A - Process for producing oxymethylene copolymers - Google Patents
Process for producing oxymethylene copolymersInfo
- Publication number
- GB1387863A GB1387863A GB2797672A GB2797672A GB1387863A GB 1387863 A GB1387863 A GB 1387863A GB 2797672 A GB2797672 A GB 2797672A GB 2797672 A GB2797672 A GB 2797672A GB 1387863 A GB1387863 A GB 1387863A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- june
- tin compound
- catalyst
- oxymethylene copolymers
- 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
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
- C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
1387863 Polymerisation catalyst CELANESE CORP 15 June 1972 [28 June 1971] 27976/72 Heading B1E [Also in Division C3] A catalyst mixture for trioxan copolymerization comprises (a) a Lewis acid and (b) an organic, non-acidic tin compound containing at least one Sn-O or Sn-S bond. The mixture may be formed in situ by addition of the tin compound during polymerization or the mixture pre-formed. In the latter case complexforming reactions are prevented. Exemplified mixtures comprise (a) boron trifluoride or phosphorus pentafluoride and (b) dibutyl tin dilaurate or stannous octoate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15766871A | 1971-06-28 | 1971-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1387863A true GB1387863A (en) | 1975-03-19 |
Family
ID=22564738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2797672A Expired GB1387863A (en) | 1971-06-28 | 1972-06-15 | Process for producing oxymethylene copolymers |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5545564B1 (en) |
BE (1) | BE785424A (en) |
CA (1) | CA984089A (en) |
DE (1) | DE2228418A1 (en) |
FR (1) | FR2143759B1 (en) |
GB (1) | GB1387863A (en) |
IT (1) | IT956870B (en) |
NL (1) | NL7208903A (en) |
NO (1) | NO133451C (en) |
SE (1) | SE388424B (en) |
-
1972
- 1972-06-10 DE DE19722228418 patent/DE2228418A1/en active Pending
- 1972-06-15 GB GB2797672A patent/GB1387863A/en not_active Expired
- 1972-06-26 JP JP6335272A patent/JPS5545564B1/ja active Pending
- 1972-06-26 BE BE785424A patent/BE785424A/en unknown
- 1972-06-26 FR FR7223022A patent/FR2143759B1/fr not_active Expired
- 1972-06-27 SE SE844672A patent/SE388424B/en unknown
- 1972-06-27 NO NO228672A patent/NO133451C/no unknown
- 1972-06-27 CA CA145,843A patent/CA984089A/en not_active Expired
- 1972-06-27 IT IT2627772A patent/IT956870B/en active
- 1972-06-28 NL NL7208903A patent/NL7208903A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE785424A (en) | 1972-12-27 |
NL7208903A (en) | 1973-01-02 |
CA984089A (en) | 1976-02-17 |
JPS5545564B1 (en) | 1980-11-18 |
IT956870B (en) | 1973-10-10 |
FR2143759A1 (en) | 1973-02-09 |
NO133451B (en) | 1976-01-26 |
DE2228418A1 (en) | 1973-01-18 |
NO133451C (en) | 1976-05-05 |
FR2143759B1 (en) | 1976-08-06 |
SE388424B (en) | 1976-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1368728A (en) | Digital pattern detector | |
IE36165B1 (en) | A catalytic complex for the polymerisation of alpha-olefins | |
AU467158B2 (en) | Polymer composition containing a graft copolymer | |
GB1387863A (en) | Process for producing oxymethylene copolymers | |
GB1395629A (en) | Stabilised oxymethylene copolymer compositions | |
CA988270A (en) | Method for producing non-blocking ethylene-acrylic acid copolymer articles and articles produced thereby | |
ZA738518B (en) | Process for polymerizing or copolymerizing olefins and catalyst composition thereof | |
CH523936A (en) | Process for the preparation of a pure polyoxymethylene, homo- or copolymer, with stabilized chains | |
GB1294657A (en) | Fluorinated cyclic formals and the production of polymers therefrom | |
CA924436A (en) | Lactam polymerization with n,n'-dialkyl-azetidinedione initiators | |
ES377293A1 (en) | Two-step bulk polymerization of pivalolactone | |
GB1319350A (en) | Process for preparation of alkylene oxide polymers | |
KOBAYASHI | Symposium of the differentiation of peasantry in mountain village and forestry problems | |
GB1517790A (en) | Process for the production of solid thermoplastic terpolymers of trioxane | |
AU454852B2 (en) | Dyeable polymer alloy fibers | |
AU454466B2 (en) | Dyeable olefin polymer compositions | |
AU4894872A (en) | Dyeable polymer alloy fibers | |
AU436463B2 (en) | Method of polymerising ethylene, if required in mixture with other & - olefins | |
GB1300974A (en) | Process for the production of trioxane polymers | |
CA845018A (en) | Dyeable polymers | |
AU2950371A (en) | Dyeable olefin polymer compositions | |
AU5308769A (en) | Method of polymerising ethylene, if required in mixture with other & - olefins | |
CA871795A (en) | Process for the production of polymers containing phosphorus and nitrogen | |
JPS5229892A (en) | Process for producing polyester elastomers | |
LEBEDEV et al. | HARDENING OF TIN BRONZES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |