GB1361035A - Method of preparing high molecular weight polyoxymethylenes - Google Patents
Method of preparing high molecular weight polyoxymethylenesInfo
- Publication number
- GB1361035A GB1361035A GB5118871A GB5118871A GB1361035A GB 1361035 A GB1361035 A GB 1361035A GB 5118871 A GB5118871 A GB 5118871A GB 5118871 A GB5118871 A GB 5118871A GB 1361035 A GB1361035 A GB 1361035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymerization
- total duration
- percolation
- och
- nov
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 229920006324 polyoxymethylene Polymers 0.000 title abstract 2
- -1 polyoxymethylenes Polymers 0.000 title abstract 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 238000006116 polymerization reaction Methods 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- 125000002091 cationic group Chemical group 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 2
- 238000005325 percolation Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical group [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 abstract 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 150000003839 salts Chemical group 0.000 abstract 1
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
- C08G2/10—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT3163170 | 1970-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1361035A true GB1361035A (en) | 1974-07-24 |
Family
ID=11234143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5118871A Expired GB1361035A (en) | 1970-11-12 | 1971-11-03 | Method of preparing high molecular weight polyoxymethylenes |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3786026A (OSRAM) |
| JP (1) | JPS5439437B1 (OSRAM) |
| CA (1) | CA959989A (OSRAM) |
| CH (1) | CH548428A (OSRAM) |
| DE (1) | DE2156112C2 (OSRAM) |
| FR (1) | FR2113918B1 (OSRAM) |
| GB (1) | GB1361035A (OSRAM) |
| NL (1) | NL168529C (OSRAM) |
| YU (1) | YU34210B (OSRAM) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD37568A (OSRAM) * | ||||
| US2989510A (en) * | 1958-06-20 | 1961-06-20 | Celanese Corp | High molecular weight polymer and process therefor |
| NL109971C (OSRAM) * | 1959-08-29 | 1900-01-01 | ||
| BE613802A (OSRAM) * | 1961-02-15 | |||
| US3372145A (en) * | 1963-01-14 | 1968-03-05 | Prod Dev Res Inst | Procedure for continuous manufacture of polyoxymethylene of ultra-high degree of polymerization |
| FR1462943A (fr) * | 1966-08-23 | 1966-12-16 | Inst Khim Fiz An Usrr | Procédé de préparation de copolymères-blocs de formaldéhyde |
| FR2001510A1 (fr) * | 1968-02-08 | 1969-09-26 | Japan Atomic Energy Res Inst | Procede de fabrication de polyoxymethylene |
| US3684767A (en) * | 1969-01-16 | 1972-08-15 | Japan Atomic Energy Res Inst | Method for preparing polyoxymethylene |
-
1971
- 1971-11-02 CA CA126,693A patent/CA959989A/en not_active Expired
- 1971-11-03 GB GB5118871A patent/GB1361035A/en not_active Expired
- 1971-11-03 CH CH1602571A patent/CH548428A/it not_active IP Right Cessation
- 1971-11-04 US US00195842A patent/US3786026A/en not_active Expired - Lifetime
- 1971-11-10 FR FR7140390A patent/FR2113918B1/fr not_active Expired
- 1971-11-11 DE DE2156112A patent/DE2156112C2/de not_active Expired
- 1971-11-11 JP JP9051471A patent/JPS5439437B1/ja active Pending
- 1971-11-11 YU YU2844/71A patent/YU34210B/xx unknown
- 1971-11-12 NL NLAANVRAGE7115567,A patent/NL168529C/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5439437B1 (OSRAM) | 1979-11-28 |
| US3786026A (en) | 1974-01-15 |
| NL7115567A (OSRAM) | 1972-05-16 |
| YU284471A (en) | 1978-06-30 |
| DE2156112C2 (de) | 1982-02-18 |
| CA959989A (en) | 1974-12-24 |
| CH548428A (it) | 1974-04-30 |
| NL168529C (nl) | 1982-04-16 |
| DE2156112A1 (de) | 1972-05-18 |
| FR2113918A1 (OSRAM) | 1972-06-30 |
| FR2113918B1 (OSRAM) | 1974-03-29 |
| NL168529B (nl) | 1981-11-16 |
| YU34210B (en) | 1979-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |