Novel polyaromatic cyanates
US4751323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1983 |
| Grant date | Jun 14, 1988 |
| Priority date | — |
| Expiry date | Nov 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a polyaromatic cyanate which corresponds to the formula ##STR1## wherein Ar is an aromatic radical; PA1 B is a C.sub.7-20 polycyclic aliphatic radical; PA1 D is independently in each occurrence any non-active hydrogen-containing substituent; PA1 q, r and s are independently in each occurrence the integers b 0, 1, 2, l or b 3l ; with the proviso that the sum of q, 4 and s is greater than or equal to 2; PA1 t is independently in each occurrence an integer of between about 0 and 4 inclusive; and PA1 x is a number between about 0 and 5 inclusive. Another aspect of this invention is a novel polytriazine which comprises the reaction product of the polyaromatic cyanate esters of this invention. The novel polytriazines may further comprise the reaction product of the novel polyaromatic cyanates of this invention in admixture with other cyanates known in the art as useful for the preparation of polytriazines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.