Process for the production of non-inflammable polytriazines
US4094861A · kind A · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1976 |
| Grant date | Jun 13, 1978 |
| Priority date | — |
| Expiry date | Jul 22, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/065
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Non-inflammable, high molecular weight polytriazines are obtained by condensing less than 3 mols of polyfunctional (amino)phenols with 1 mol phosphorus (oxy) trihalide in the presence of a base, subsequently reacting the still free primary amino or phenolic hydroxyl groups with cyanogen halide in the presence of a base to form cyanamide or organic ester groups and polymerizing thereafter the reaction product at a temperature of up to 350.degree. C, optionally in the presence of polymerization promoters. The polytriazine may be used as plastics and lacquers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.