CA2247239A1 - Apparatus and process for a polycondensation reaction - Google Patents
Apparatus and process for a polycondensation reactionInfo
- Publication number
- CA2247239A1 CA2247239A1 CA002247239A CA2247239A CA2247239A1 CA 2247239 A1 CA2247239 A1 CA 2247239A1 CA 002247239 A CA002247239 A CA 002247239A CA 2247239 A CA2247239 A CA 2247239A CA 2247239 A1 CA2247239 A1 CA 2247239A1
- Authority
- CA
- Canada
- Prior art keywords
- reaction vessel
- agitator
- polymer melt
- inert gas
- melt
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000006068 polycondensation reaction Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 abstract 5
- 229920000642 polymer Polymers 0.000 abstract 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 abstract 2
- 239000011261 inert gas Substances 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- QPKOBORKPHRBPS-UHFFFAOYSA-N bis(2-hydroxyethyl) terephthalate Chemical compound OCCOC(=O)C1=CC=C(C(=O)OCCO)C=C1 QPKOBORKPHRBPS-UHFFFAOYSA-N 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
An improved process and apparatus for the production of a polyester or other condensation polymer is disclosed. In particular, polymerization is conducted in a reaction vessel equipped with a specially designed agitator that exposes the polymer melt partially filling the reaction vessel to inert gas flowing through the vessel. The agitator comprises a plurality of elements that lift a portion of a polymer melt in the reaction vessel and generate films of the polymer melt which films extend in planes that are parallel to the axis of the agitator and the flow of gas through the reaction vessel. In a preferred process, a melt of bis(2-hydroxyethyl)terephthalate, or its low molecular oligomers, obtained by esterifying terephthalic acid or transesterifying dimethyl terephthalate with ethylene glycol, is contacted with an inert gas at about atmospheric pressure in order to remove the reaction by-products and facilitate polymerization.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/625,571 US5677415A (en) | 1996-03-28 | 1996-03-28 | Apparatus and process for a polycondensation reaction |
| US08/625,571 | 1996-03-28 | ||
| US08/771,494 | 1996-12-23 | ||
| US08/771,494 US5856423A (en) | 1996-12-23 | 1996-12-23 | Apparatus and process for a polycondensation reaction |
| PCT/US1997/004487 WO1997035902A1 (en) | 1996-03-28 | 1997-03-24 | Apparatus and process for a polycondensation reaction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2247239A1 true CA2247239A1 (en) | 1997-10-02 |
| CA2247239C CA2247239C (en) | 2006-02-21 |
Family
ID=35929957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002247239A Expired - Fee Related CA2247239C (en) | 1996-03-28 | 1997-03-24 | Apparatus and process for a polycondensation reaction |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2247239C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114746477A (en) * | 2019-12-19 | 2022-07-12 | 帝斯曼知识产权资产管理有限公司 | Continuous solid state polymerization process and reactor column for use therein |
-
1997
- 1997-03-24 CA CA002247239A patent/CA2247239C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114746477A (en) * | 2019-12-19 | 2022-07-12 | 帝斯曼知识产权资产管理有限公司 | Continuous solid state polymerization process and reactor column for use therein |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2247239C (en) | 2006-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |