Wholly aromatic thermotropic polyesters having an excellent rigidity and tenacity, process for their preparation and their use in the production of moulded articles, filaments, fibres and sheets

• Main Authors: BOTTENBRUCH, LUDWIG DR, EL SAYED, AZIZ DR, DICKE, HANS-RUDOLF DR, ECKHARDT, VOLKER DR
• Format: Patent
• Language: English; French; German
• Published: 13.05.1987
• Edition: 4
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP

Thermotrope vollaromatische Polyester aus p-Hydroxybenzoesäure, 3, 4' -Benzophenon-dicarbonsäure und bestimmten Bisphenolen weisen eine bislang nicht bekannte Kombination sehr hoher Steifigkeit und hoher Zähigkeit auf. Thermotropic, fully aromatic polyesters of p-hydroxybenzoic acid, 3,4'-benzophenone-dicarboxylic acid and certain bisphenols have a previously unknown combination of very high rigidity and high toughness.