GB1288389A - - Google Patents

Info

Publication number
GB1288389A
GB1288389A GB4263569A GB4263569A GB1288389A GB 1288389 A GB1288389 A GB 1288389A GB 4263569 A GB4263569 A GB 4263569A GB 4263569 A GB4263569 A GB 4263569A GB 1288389 A GB1288389 A GB 1288389A
Authority
GB
United Kingdom
Prior art keywords
acid
glycolterephthalates
aug
replaced
per cent
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
GB4263569A
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
Application filed filed Critical
Publication of GB1288389A publication Critical patent/GB1288389A/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
    • C08G63/83—Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
    • 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
    • C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1288389 Modified poly(glycolterephthalates) MINNESOTA MINING & MFG CO 27 Aug 1969 [28 Aug 1968 9 June 1969] 42635/69 Heading C3R Clear and virtually colourless poly(glycolterephthalates) are produced from terephthalic acid or dimethyl terephthalate and excess glycol of formula HO-(CH 2 ) n -OH where n = 2-10 in the presence of 0À05 to 1À0 wt. per cent (based on acid or ester used) of a polyfunctional compound having at least 3 functional groups, these being carboxyl, hydroxy or lower alkyl ester groups by polycondensation using 0À005 to 0À05 wt. per cent (based on acid or ester used) of a zinc salt which is soluble in the reaction mixture as the sole catalyst. Up to one half by weight of the terephthalic acid or dimethyl terephthalate may be replaced by isophthalic acid, sebacic acid, 2,6-naphthalic acid or their dimethyl esters and the glycol may optionally be replaced by cyclohexane-dimethanol-1,4. Specific polyfunctional agents named are trimethylolpropane, pentaerythritol, trimethyl trimesate, tetramethyl pyromellitate, dimethylolpropionic acid and trimethyl earballylate.
GB4263569A 1968-08-28 1969-08-27 Expired GB1288389A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75581968A 1968-08-28 1968-08-28
US83174969A 1969-06-09 1969-06-09

Publications (1)

Publication Number Publication Date
GB1288389A true GB1288389A (en) 1972-09-06

Family

ID=27116133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4263569A Expired GB1288389A (en) 1968-08-28 1969-08-27

Country Status (5)

Country Link
BE (1) BE738058A (en)
DE (1) DE1944239A1 (en)
FR (1) FR2016507A1 (en)
GB (1) GB1288389A (en)
NL (1) NL6912563A (en)

Also Published As

Publication number Publication date
FR2016507A1 (en) 1970-05-08
DE1944239A1 (en) 1970-03-19
BE738058A (en) 1970-02-27
NL6912563A (en) 1970-03-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee