GB1412287A - Preparation of polyesters - Google Patents
Preparation of polyestersInfo
- Publication number
- GB1412287A GB1412287A GB5637972A GB5637972A GB1412287A GB 1412287 A GB1412287 A GB 1412287A GB 5637972 A GB5637972 A GB 5637972A GB 5637972 A GB5637972 A GB 5637972A GB 1412287 A GB1412287 A GB 1412287A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- formula
- functional groups
- organic group
- ester forming
- 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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/87—Non-metals or inter-compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/24—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran
- C07C67/26—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran with an oxirane ring
-
- 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
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
-
- 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
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)
Abstract
1412287 Polyesters TEIJIN Ltd 6 Dec 1972 [6 Dec 1971 10 Jan 1972] 56379/72 Heading C3R In a process for the production of a polyester there is added to a molten polyester containing units derived from a dicarboxylic acid or hydroxycarboxylic acid and units derived from a glycol, an aromatic ortho-ester of formula in which R 1 , R 2 and R 3 each independently represents a monovalent organic group free from ester forming functional groups and having a molecular weight not exceeding 250, or any two of R 1 , R 2 and R 3 together form a ring and R 1 , R 2 , R 3 and X satisfy one of the following conditions: (a) X is a group of formula wherein R represents a hydrogen atom or a monovalent organic group free from functional groups, and having a molecular weight not exceeding 250 and at least one of R 1 , R 2 and R 3 represents a monovalent aromatic group, (b) X is a group of formula wherein Y 1 represents a divalent organic group free from ester forming functional groups, p is 0 or 1 and R 4 , R 5 and R 6 are as defined for R 1 , R 2 and R 3 with the proviso that at least one of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 represents a monovalent aromatic group, (c) X is a group of formula wherein Y 2 represents a divalent organic group free from ester forming functional groups, p is 0 or 1 and R 7 represents a monovalent organic group free from ester forming functional groups, and having a molecular weight not exceeding 250 and at least one of R 1 , R 2 and R 3 represents a monovalent aromatic group, or (d) X is a group of formula wherein Y 3 represents a divalent organic group free from ester forming functional groups, and R 1 , R 2 , R 3 and Z satisfy one of the following conditions:- (i) Z is a group of formula or wherein R 9 represents a monovalent organic group free from ester forming functional groups and having a molecular weight not exceeding 250, R 8 is as defined for R 9 or represents a hydrogen atom and at least one of R 1 , R 2 and R 3 represents a monovalent aromatic group, (ii) Z is a group of formula in which R 10 ) and R 12 each independently represent a monovalent organic group free from ester forming functional groups and having a molecular weight not exceeding 250, and R 11 is as defined for R 10 and R 12 or represents a hydrogen atom, or any two of R 10 , R 11 and R 12 together form a ring, with the proviso that at least one of R 1 , R 2 , R 3 , R 10 and R 12 represents a monovalent aromatic group, or (iii) Z is a group of formula wherein R 13 , R 14 and R 15 are as defined for R 1 , R 2 and R 3 with the proviso that at least one of R 1 , R 2 , R 3 , R 13 , R 14 and R 15 represents a monovalent aromatic group, the polycondensation being effected by removing glycol from the polyester while the reaction mixture is in the molten or solid state. Polyethylene terephthalate when prepared by such a process is stated to have a greater affinity for disperse dyes. Comparative examples describe the preparation of polyethylene terephthalate in the presence of a wide variety of orthoesters.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9850171A JPS502635B2 (en) | 1971-12-06 | 1971-12-06 | |
JP467172A JPS5517769B2 (en) | 1972-01-10 | 1972-01-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1412287A true GB1412287A (en) | 1975-11-05 |
Family
ID=26338480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5637972A Expired GB1412287A (en) | 1971-12-06 | 1972-12-06 | Preparation of polyesters |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA988645A (en) |
DE (2) | DE2265254C3 (en) |
FR (1) | FR2162485B1 (en) |
GB (1) | GB1412287A (en) |
IT (1) | IT971647B (en) |
NL (1) | NL7216537A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3634613B2 (en) * | 1998-02-09 | 2005-03-30 | 帝人株式会社 | Polyethylene naphthalene dicarboxylate |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1301552B (en) * | 1963-06-19 | 1969-08-21 | Teijin Ltd | Process for the production of linear polyesters |
JPS495630B1 (en) * | 1970-03-19 | 1974-02-08 |
-
1972
- 1972-12-05 DE DE19722265254 patent/DE2265254C3/en not_active Expired
- 1972-12-05 CA CA158,113A patent/CA988645A/en not_active Expired
- 1972-12-05 DE DE19722259531 patent/DE2259531A1/en not_active Withdrawn
- 1972-12-06 GB GB5637972A patent/GB1412287A/en not_active Expired
- 1972-12-06 NL NL7216537A patent/NL7216537A/xx not_active Application Discontinuation
- 1972-12-06 FR FR7243366A patent/FR2162485B1/fr not_active Expired
- 1972-12-06 IT IT3261372A patent/IT971647B/en active
Also Published As
Publication number | Publication date |
---|---|
DE2265254C3 (en) | 1981-04-30 |
IT971647B (en) | 1974-05-10 |
DE2259531A1 (en) | 1973-06-20 |
CA988645A (en) | 1976-05-04 |
NL7216537A (en) | 1973-06-08 |
DE2265254A1 (en) | 1977-01-27 |
FR2162485A1 (en) | 1973-07-20 |
FR2162485B1 (en) | 1975-09-12 |
DE2265254B2 (en) | 1980-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |