Accession Number:
ADD002172
Title:
2,3,7,8-Tetraaminodibenzothiophene 5,5-Dioxide and Process Therefor.
Descriptive Note:
Patent,
Corporate Author:
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s):
Report Date:
1975-12-30
Pagination or Media Count:
6.0
Abstract:
Benzothiophenedioxideisoquinoline ladder polymers are synthesized by the condensation of 2,3,7,8-tetraaminodibenzothiophenes-5,5-dioxide with an aromatic tetracarboxylic acid or dianhydride thereof. The highly fused, aromatic-heterocyclic polymers so prepared have a high degree of thermal stability, a property that renders them particularly useful for high temperature applications, such as for plastic composites, fibrous materials and protective coatings.
Descriptors:
Subject Categories:
- Polymer Chemistry
- Coatings, Colorants and Finishes
- Plastics