GB903099A - Process for the production of polyesters and pure terephthalic acid - Google Patents
Process for the production of polyesters and pure terephthalic acidInfo
- Publication number
- GB903099A GB903099A GB3566960A GB3566960A GB903099A GB 903099 A GB903099 A GB 903099A GB 3566960 A GB3566960 A GB 3566960A GB 3566960 A GB3566960 A GB 3566960A GB 903099 A GB903099 A GB 903099A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- acids
- product
- phthalic acids
- tere
- 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
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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/123—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/127—Acids containing aromatic rings
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Partial copolyesterification with a polyhydric alcohol of a mixture of isomeric phthalic acids under an atmosphere of an inert gas is interrupted when the amount of water produced indicates that all of the isomers other than terephthalic acid have been esterified, the polyester separated by filtration from the residual terephthalic acid and further polycondensation is preferably effected. The polyhydric alcohol may be dihydric, in which case the further polycondensation gives (a) a saturated copolyester, using optionally a fatty acid or (b) an unsaturated copolyester, using maleic and/or fumaric acid and optionally a saturated acid followed by reaction with a cross-linking monomer. The further condensation in case (b) may be carried out in presence of the same or a different dihydric alcohol. Alternatively, where the polyhydric alcohol is trihydric, the separated product may be further condensed with one or more saturated and/or unsaturated monocarboxylic fatty acids to obtain a copolyester resin, e.g. a glycerophthalate when glycerol is used. In Examples:- (1) and (2) the partially copolyesterified product from iso- and tere-phthalic acids and propane-1:2-diol was further reacted with propane-1:2-diol and maleic acid or anhydride and the product was polymerized with added styrene; (3) as in (2), the starting material containing also orthophthalic acid; (4) as in (2) except that in the first stage ethylene glycol was used instead of the propanediol; (5) as in (2) the starting material being ortho- and tere-phthalic acids; (6) the partially copolyesterified product from iso- and tere-phthalic acids and propane-1:2-diol was further reacted in presence of adipic acid; (7) the intermediate from ortho- and tere-phthalic acids and glycerol was further reacted with linseed oil acids.ALSO:Pure terephthalic acid is isolated from a mixture with at least one of the other phthalic acids by partial copolyesterification p with a polyhydric alcohol under an atmosphere of an inert gas, stopping the reaction when the amount of water produced indicates that all of the isomeric acids other than terephthalic have been esterified and then separating by filtration the residual terephthalic acid from the esterified product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR809720A FR1463753A (en) | 1959-11-07 | 1959-11-07 | Process for the joint production of polyester resins and pure terephthalic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB903099A true GB903099A (en) | 1962-08-09 |
Family
ID=8721083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3566960A Expired GB903099A (en) | 1959-11-07 | 1960-10-18 | Process for the production of polyesters and pure terephthalic acid |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE596104A (en) |
| FR (1) | FR1463753A (en) |
| GB (1) | GB903099A (en) |
| LU (1) | LU39293A1 (en) |
| NL (1) | NL257183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080704A1 (en) * | 2002-03-18 | 2003-10-02 | Arco Chemical Technology, L.P. | Preparation of unsaturated polyesters |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926714B1 (en) * | 1970-12-10 | 1974-07-11 |
-
0
- BE BE596104D patent/BE596104A/xx unknown
- NL NL257183D patent/NL257183A/xx unknown
-
1959
- 1959-11-07 FR FR809720A patent/FR1463753A/en not_active Expired
-
1960
- 1960-10-17 LU LU39293D patent/LU39293A1/xx unknown
- 1960-10-18 GB GB3566960A patent/GB903099A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080704A1 (en) * | 2002-03-18 | 2003-10-02 | Arco Chemical Technology, L.P. | Preparation of unsaturated polyesters |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1463753A (en) | 1966-07-22 |
| LU39293A1 (en) | 1960-12-17 |
| NL257183A (en) | |
| BE596104A (en) |
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