ES379189A3 - Procedure for the preparation of linear aromatic polyesters. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of linear aromatic polyesters. (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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Process for the preparation of linear aromatic polyesters characterized by polycondensing aromatic dicarboxylic acids, or their polyester-forming derivatives, with two bifunctional hydroxylic compounds, one of which is unbranched and the other corresponds to the formula: ** (see formula) ** Wherein r represents a methyl group, methoxyphenyl or a heterocyclic nucleus and a represents a methylene or phenylene group or other unbranched and bivalent group of at most 5 links which may contain, in addition to the carbon atoms, heteroatoms such as oxygen and sulfur. (Machine-translation by Google Translate, not legally binding)
ES379189A1970-04-291970-04-29Procedure for the preparation of linear aromatic polyesters. (Machine-translation by Google Translate, not legally binding)
ExpiredES379189A3
(en)
A procedure for the preparation of pharmacodyamically active derivatives of hydroxyalcohylpiperazine. (Machine-translation by Google Translate, not legally binding)