ES358848A3 - Improved procedure of polymerization of glycolic ester of tereftal acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improved procedure of polymerization of glycolic ester of tereftal acid. (Machine-translation by Google Translate, not legally binding)
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La Seda de Barcelona SA
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La Seda de Barcelona SA
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Improved polymerization process of glycolic ester of terephthalic acid in the presence of a metal-containing catalyst for the polymerization thereof to produce a substantially colorless linear polishable polyester characterized by heating said glycol ester under reduced pressure in the presence of a phosphoric compound selected from the group formed by phosphoric acid, alkyl phosphates, hydroxyalkyl phosphates and aryl phosphates in an amount of less than 0.2 mole percent, based on the terephthalate content of the polymer, to produce a spinnable polymer. (Machine-translation by Google Translate, not legally binding)
ES358848A1968-09-231968-09-23Improved procedure of polymerization of glycolic ester of tereftal acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES358848A3
(en)