GB1377083A - Method for the purification of a polyoxymethylene hono- or copolymer - Google Patents
Method for the purification of a polyoxymethylene hono- or copolymerInfo
- Publication number
- GB1377083A GB1377083A GB5204671A GB5204671A GB1377083A GB 1377083 A GB1377083 A GB 1377083A GB 5204671 A GB5204671 A GB 5204671A GB 5204671 A GB5204671 A GB 5204671A GB 1377083 A GB1377083 A GB 1377083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pom
- solution
- polymer
- terminal
- crystallization
- 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
- 229920006324 polyoxymethylene Polymers 0.000 title abstract 9
- 229930040373 Paraformaldehyde Natural products 0.000 title abstract 8
- 229920001577 copolymer Polymers 0.000 title abstract 3
- -1 polyoxymethylene Polymers 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 229920000642 polymer Polymers 0.000 abstract 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- 238000002425 crystallisation Methods 0.000 abstract 3
- 230000008025 crystallization Effects 0.000 abstract 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 abstract 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 abstract 1
- 239000002178 crystalline material Substances 0.000 abstract 1
- 239000012297 crystallization seed Substances 0.000 abstract 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 abstract 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 abstract 1
- 150000002009 diols Chemical class 0.000 abstract 1
- 150000002148 esters Chemical group 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000005056 polyisocyanate Substances 0.000 abstract 1
- 229920001228 polyisocyanate Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000002904 solvent Substances 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
- C08G2/30—Chemical modification by after-treatment
-
- 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
- C08G2/30—Chemical modification by after-treatment
- C08G2/36—Chemical modification by after-treatment by depolymerisation
Landscapes
- Chemical & Material Sciences (AREA)
- General 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1377083 Purification of polyoxymethylene polymers EBAUCHES SA 9 Nov 1971 [24 Nov 1970] 52046/71 Heading C3P Polyoxymethylene (POM) homo- or copolymers having terminal ester, ether or urethane groups are purified by subjecting them whilst in solution or in the form of a homogeneous gel to a heat treatment to destroy unstable residual components in the polymer which do not contain said terminal groups, converting the gel to a solution, if a gel is heat treated, effecting controlled cooling of the solution to induce crystallization of the polymer and thermostatically filtering the crystallized mixture so as to separate substantially pure POM homo- or copolymer having said terminal groups from short length polymer chains and impurities. A crystalline material (e.g. POM powder or a di- or polyurethane obtained by reaction of a diol with a mono-, di- or polyisocyanate) may be added to the solution to induce crystallization and a non solvent for the POM polymer may be added to the solution during cooling to facilitate crystallization. In the examples POM having terminal urethane or acetyl end groups is dissolved in γ butyrolactone, dimethylsulphoxide or a mixture of ethylene glycol and cyclohexanol, the solution is heated, then slowly cooled with and without the addition of POM crystallization seeds and thermostatically filtered.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1748470A CH523936A (en) | 1970-11-24 | 1970-11-24 | Process for the preparation of a pure polyoxymethylene, homo- or copolymer, with stabilized chains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1377083A true GB1377083A (en) | 1974-12-11 |
Family
ID=4425763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5204671A Expired GB1377083A (en) | 1970-11-24 | 1971-11-09 | Method for the purification of a polyoxymethylene hono- or copolymer |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT306371B (en) |
| CA (1) | CA961595A (en) |
| CH (1) | CH523936A (en) |
| DE (1) | DE2108747C3 (en) |
| FR (1) | FR2123263B1 (en) |
| GB (1) | GB1377083A (en) |
| IT (1) | IT945116B (en) |
| NL (1) | NL7115950A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8188211B2 (en) | 2008-04-16 | 2012-05-29 | Ticona Gmbh | Oxymethylene polymers, process for the preparation thereof and use thereof |
| US8840976B2 (en) | 2010-10-14 | 2014-09-23 | Ticona Llc | VOC or compressed gas containment device made from a polyoxymethylene polymer |
| US8968858B2 (en) | 2011-12-30 | 2015-03-03 | Ticona Llc | Printable molded articles made from a polyoxymethylene polymer composition |
| US9005515B2 (en) | 2011-04-01 | 2015-04-14 | Ticona Gmbh | High impact resistant polyoxymethylene for extrusion blow molding |
| US9745467B2 (en) | 2012-12-27 | 2017-08-29 | Ticona, Llc | Impact modified polyoxymethylene composition and articles made therefrom that are stable when exposed to ultraviolet light |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2620017C3 (en) * | 1976-05-06 | 1979-05-31 | Hoechst Ag, 6000 Frankfurt | Process for the preparation of coarse-grained oxymethylene polymers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1349046A (en) * | 1962-03-05 | 1964-01-10 | Toyo Rayon Co Ltd | Heat stabilization of polymers containing oxymethylene groups |
| FR1364519A (en) * | 1962-07-27 | 1964-06-19 | Montedison Spa | Esterification process of polyoxymethylene in solution |
| FR1448609A (en) * | 1964-09-30 | 1966-08-05 | Celanese Corp | Improvements in polymer post-treatments |
| DE1247645B (en) * | 1964-12-23 | 1967-08-17 | Bayer Ag | Injection molding compounds containing high molecular weight polyacetals |
-
1970
- 1970-11-24 CH CH1748470A patent/CH523936A/en not_active IP Right Cessation
-
1971
- 1971-02-24 DE DE19712108747 patent/DE2108747C3/en not_active Expired
- 1971-10-28 AT AT931671A patent/AT306371B/en not_active IP Right Cessation
- 1971-11-09 GB GB5204671A patent/GB1377083A/en not_active Expired
- 1971-11-10 FR FR7141935A patent/FR2123263B1/fr not_active Expired
- 1971-11-17 CA CA128,165A patent/CA961595A/en not_active Expired
- 1971-11-19 NL NL7115950A patent/NL7115950A/xx unknown
- 1971-11-23 IT IT5430171A patent/IT945116B/en active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8188211B2 (en) | 2008-04-16 | 2012-05-29 | Ticona Gmbh | Oxymethylene polymers, process for the preparation thereof and use thereof |
| US8742065B2 (en) | 2008-04-16 | 2014-06-03 | Ticona Gmbh | Oxymethylene polymers, process for the preparation thereof and use thereof |
| US8840976B2 (en) | 2010-10-14 | 2014-09-23 | Ticona Llc | VOC or compressed gas containment device made from a polyoxymethylene polymer |
| US9005515B2 (en) | 2011-04-01 | 2015-04-14 | Ticona Gmbh | High impact resistant polyoxymethylene for extrusion blow molding |
| US8968858B2 (en) | 2011-12-30 | 2015-03-03 | Ticona Llc | Printable molded articles made from a polyoxymethylene polymer composition |
| US9745467B2 (en) | 2012-12-27 | 2017-08-29 | Ticona, Llc | Impact modified polyoxymethylene composition and articles made therefrom that are stable when exposed to ultraviolet light |
Also Published As
| Publication number | Publication date |
|---|---|
| AT306371B (en) | 1973-04-10 |
| DE2108747B2 (en) | 1976-02-19 |
| FR2123263A1 (en) | 1972-09-08 |
| FR2123263B1 (en) | 1975-08-29 |
| CH523936A (en) | 1972-06-15 |
| CA961595A (en) | 1975-01-21 |
| IT945116B (en) | 1973-05-10 |
| DE2108747A1 (en) | 1972-06-08 |
| NL7115950A (en) | 1972-05-26 |
| DE2108747C3 (en) | 1980-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |