Patent EP0325989A2 successfully refreshed from Google Patents.
EP0325989A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process for producing polybenzamides
Assignee: Bayer AG
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Filing: 1989-01-17
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Granted: —
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Expires: 2009-01-17
Abstract
Abstract Translated from German Die Erfindung betrifft ein Verfahren zur Herstellung von Poly(1,4-benzamid) im Gemisch mit SiO₂ durch Polykondensation von 4-Aminobenzoesäure in Gegenwart von SiCl₄ in 1,3-Dimethyltetrahydro-2(1H)-pyrimidinon in Gegenwart von Salzen wie Lithiumchlorid oder Calciumchlorid. The invention relates to a process for the preparation of poly (1,4-benzamide) in a mixture with SiO₂ by polycondensation of 4-aminobenzoic acid in the presence of SiCl₄ in 1,3-dimethyltetrahydro-2 (1H) -pyrimidinone in the presence of salts such as lithium chloride or Calcium chloride.
Inventors
- 👤 Manfred Spies
- 👤 Walter Prof. Dr. Heitz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 12:43
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/12; C08J3/20; C08J2377/00; C08J2377/10
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