GB1412287A - Preparation of polyesters - Google Patents

Preparation of polyesters

Info

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
Application number
GB5637972A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP9850171A external-priority patent/JPS502635B2/ja
Priority claimed from JP467172A external-priority patent/JPS5517769B2/ja
Application filed by Teijin Ltd filed Critical Teijin Ltd
Publication of GB1412287A publication Critical patent/GB1412287A/en
Expired legal-status Critical Current

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.
GB5637972A 1971-12-06 1972-12-06 Preparation of polyesters Expired GB1412287A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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