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EP0139303A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Wholly aromatic polyesters and their production

Assignee: BASF SE
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Filing: 1984-10-19
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Granted: —
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Expires: 2004-10-19
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Abstract

Abstract Translated from German Vollaromatische Polyester, die unterhalb von 300°C eine flüssigkristalline, fadenbildende Schmelze bilden, im wesentlichen aufgebaut aus a) 3 bis 15 Mol% Einheiten, die sich von Hydrochinon ableiten b) 5 bis 35 Mol% Einheiten, die sich von 2,7-Dihydroxynaphthalin ableiten, c) der Summe aus a) und b) äquivalente molare Menge an Einheiten, die sich von Terephthalsäure ableiten, und d) 10 bis 70 Mol% Einheiten, die sich von p-Hydroxybenzoesäure ableiten, und deren Herstellung.Fully aromatic polyesters, which form a liquid-crystalline, thread-forming melt below 300 ° C., are essentially composed of a) 3 to 15 mol% of units derived from hydroquinone b) 5 to 35 mol% of units derived from 2,7-dihydroxynaphthalene, c) the sum of a) and b) equivalent molar amount of units derived from terephthalic acid, and d) 10 to 70 mol% of units derived from p-hydroxybenzoic acid, and their manufacture.

Inventors

  • 👤 Michael Dr. Portugall

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 07:47
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/60; C08G63/605

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