RO81178B - PROCEDEU PENTRU REDUCEREA VîSCOZITATII PASTELOR OBTINUTE DIN ACID TEREFTALIC SI ETILENGLICOL - Google Patents
PROCEDEU PENTRU REDUCEREA VîSCOZITATII PASTELOR OBTINUTE DIN ACID TEREFTALIC SI ETILENGLICOLInfo
- Publication number
- RO81178B RO81178B RO102712A RO10271280A RO81178B RO 81178 B RO81178 B RO 81178B RO 102712 A RO102712 A RO 102712A RO 10271280 A RO10271280 A RO 10271280A RO 81178 B RO81178 B RO 81178B
- Authority
- RO
- Romania
- Prior art keywords
- ethylenglycol
- reducing viscosity
- terephtalic acid
- pastes obtained
- terephthalic acid
- Prior art date
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title abstract 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title abstract 4
- 239000013078 crystal Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000843 powder 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/46—Post-polymerisation treatment, e.g. recovery, purification, drying
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
- C07C31/20—Dihydroxylic alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu pentru reducerea pastelor obtinute din acid tereftalic si etilenglicol, conform caruia, cristalele de acid tereftalic se supun la o rodare lenta în conditii de curgere libera în conteinere de tip conventional, utilizate pentru amestecarea pulberilor cu lichide, la temperatura de 140...250 degree C, timp de maximum 2h.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7941092 | 1979-11-28 | ||
| GB8036679 | 1980-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81178B true RO81178B (ro) | 1983-06-30 |
| RO81178A RO81178A (ro) | 1983-07-07 |
Family
ID=26273710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO80102712A RO81178A (ro) | 1979-11-28 | 1980-11-28 | Procedeu pentru reducerea viscozitatii pastelor obtinute din acid tereftalic si etilenglicol |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR840000822B1 (ro) |
| AR (1) | AR224553A1 (ro) |
| RO (1) | RO81178A (ro) |
| TR (1) | TR20856A (ro) |
-
1980
- 1980-11-27 TR TR20856A patent/TR20856A/xx unknown
- 1980-11-28 AR AR283426A patent/AR224553A1/es active
- 1980-11-28 RO RO80102712A patent/RO81178A/ro unknown
-
1981
- 1981-03-21 KR KR1019810000938A patent/KR840000822B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| RO81178A (ro) | 1983-07-07 |
| AR224553A1 (es) | 1981-12-15 |
| TR20856A (tr) | 1982-11-01 |
| KR830005290A (ko) | 1983-08-13 |
| KR840000822B1 (ko) | 1984-06-15 |
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