CN103073713A - Process for preparing polyester - Google Patents
Process for preparing polyester Download PDFInfo
- Publication number
- CN103073713A CN103073713A CN 201210596979 CN201210596979A CN103073713A CN 103073713 A CN103073713 A CN 103073713A CN 201210596979 CN201210596979 CN 201210596979 CN 201210596979 A CN201210596979 A CN 201210596979A CN 103073713 A CN103073713 A CN 103073713A
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- China
- Prior art keywords
- compound
- polycondensation
- polyester
- polyster
- esterification
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- 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.)
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- Polyesters Or Polycarbonates (AREA)
Abstract
The invention discloses a production method for preparing polyster, which comprises esterification reaction and polycondensation reaction, and is characterized in that catalysts for the polycondensation reaction comprise phosphorus-containing compound stabilizer, magnesium compound and titanium compound, wherein the phosphorus-containing compound stabilizer comprises phosphorous compound containing a pentaerythritol structure. The polyster prepared by the process is good in colour tone, does not pollute the environment, is very environmental-friendly, and belongs to a type of environmental-friendly polyster.
Description
Technical field
The present invention relates to a kind of multilayer materials, especially be applied in casing and make the field.
Background technology
Polyester also comprises the line style thermoplastic resins such as polybutylene terephthalate (PBT) and polyarylester traditionally.A class excellent performance, broad-spectrum engineering plastics.Also can be made into trevira and polyester film.The industrial production method of production method has following three kinds: ester exchange polycondensation method, direct esterification-polycondensation process and epoxyethane method.Wherein epoxyethane method directly generates bishydroxyethyl terephthalate with oxyethane and PTA reaction, carries out polycondensation again.Its advantage is the production process that can save Synthesis of Ethylene Glycol from Ethylene Oxide, and plant factor is high, and utility appliance is few, and product also is easy to make with extra care.Shortcoming is that the addition reaction of oxyethane and PTA needs to carry out under 2～3MPa pressure, and is harsh to equipment requirements, thereby affects being widely used of this method.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of technique of producing polyester.
The technical scheme of invention is as follows:
A kind of technique of producing polyester comprises esterification and polycondensation, it is characterized in that: the catalyzer of polycondensation is P contained compound stablizer, magnesium compound and titanium compound.
Among the present invention, wherein the P contained compound stablizer comprises the phosphorus compound that contains pure structure of seasons penta 7.
Among the present invention, the time scale of esterification and polycondensation is 3: 4.
The invention has the beneficial effects as follows that the polyester tone of manufacturing is good, environmentally safe, very environmental protection is a kind of polyester of environment-friendly type.
Embodiment
The below is described preferred implementation of the present invention take specific embodiment as explanation.
Embodiment 1.
A kind of production method of polyester comprises esterification and polycondensation, it is characterized in that: the catalyzer of polycondensation is P contained compound stablizer, magnesium compound and titanium compound.
Embodiment 2.
A kind of production method of polyester comprises esterification and polycondensation, it is characterized in that: the catalyzer of polycondensation is P contained compound stablizer, magnesium compound and titanium compound, and wherein the P contained compound stablizer comprises the phosphorus compound that contains pure structure of seasons penta 7.
Embodiment 3.
A kind of production method of polyester comprises esterification and polycondensation, it is characterized in that: the catalyzer of polycondensation is P contained compound stablizer, magnesium compound and titanium compound, and the time scale of esterification and polycondensation is 3: 4.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a technique of producing polyester comprises esterification and polycondensation, it is characterized in that: the catalyzer of polycondensation is P contained compound stablizer, magnesium compound and titanium compound.
2. the technique of production polyester as claimed in claim 1 is characterized in that, wherein the P contained compound stablizer comprises the phosphorus compound that contains pure structure of seasons penta 7.
3. the technique of production polyester as claimed in claim 1 is characterized in that, the time scale of esterification and polycondensation is 3: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210596979 CN103073713A (en) | 2012-12-24 | 2012-12-24 | Process for preparing polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210596979 CN103073713A (en) | 2012-12-24 | 2012-12-24 | Process for preparing polyester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103073713A true CN103073713A (en) | 2013-05-01 |
Family
ID=48150426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210596979 Pending CN103073713A (en) | 2012-12-24 | 2012-12-24 | Process for preparing polyester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103073713A (en) |
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2012
- 2012-12-24 CN CN 201210596979 patent/CN103073713A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Nan Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Lin Nan Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |