ES273964A1 - A procedure for the preparation of linear aromatic copolyesters (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of linear aromatic copolyesters (Machine-translation by Google Translate, not legally binding)
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Onderzoekings Instituut Research
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Onderzoekings Instituut Research
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Publication of ES273964A1publicationCriticalpatent/ES273964A1/en
A process for the preparation of linear aromatic copolyesters by polycondensation of a bisphenol and a mixture of terephthalic acid and isophthalic acid or ester-forming derivatives of these compounds, characterized in that 2,2-di (4) is used as bisphenol. -hydroxy-3-methylphenyl) -propane, and that a mixture containing from 10% to 85% of terephthalic acid is used as the mixture of acids. (Machine-translation by Google Translate, not legally binding)
ES0273964A1961-02-011962-01-23A procedure for the preparation of linear aromatic copolyesters (Machine-translation by Google Translate, not legally binding)
ExpiredES273964A1
(en)
A procedure for the polycondensation of reaction products of dimethyl tereftalate and etilenoglycol (Machine-translation by Google Translate, not legally binding)
Improvements introduced in sensitizer systems for photochemical hardening of unsaturated polyester resins (Machine-translation by Google Translate, not legally binding)