Aromatic dicyanate compounds with high aliphatic carbon content
View Patent ↗Aromatic dicyanate compounds which comprise aliphatic moieties having at least about six carbon atoms and resins and thermoset products based on these compounds.
1. A dicyanante compound of formula (Ia):
wherein:
each m independently is 1 or 2;
the moieties R independently represent halogen, cyano, nitro, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted alkoxy, optionally substituted alkenyl, optionally substituted alkenyloxy, optionally substituted aryl having from 6 to about 10 carbon atoms, optionally substituted aralkyl having from 7 to about 12 carbon atoms, optionally substituted aryloxy having from 6 to about 10 carbon atoms, and optionally substituted aralkoxy having from 7 to about 12 carbon atoms and n has a value of from about 7 to about 24;
and any non-aromatic cyclic moieties comprised in the above formula (Ia) may optionally carry one or more substituents and/or may optionally comprise one or more double bonds and/or may optionally be polycyclic.
2. The dicyanate compound of claim 1 , wherein n has a value of from about 9 to about 16.
3. The dicyanate compound of claim 1 , wherein n has a value of 10, 11, or 12.
4. The dicyanate compound of claim 1 , wherein n equals 11.
5. The dicyanate compound of claim 1 , wherein each m independently is 1.
6. A dicyanate compound, chosen from 1,1-bis(4-cyanatophenyl)cyclododecane, 1,1-bis(4-cyanato-3,5-dimethylphenyl)cyclo-dodecane, 1,1-bis(4-cyanato-3-methylphenyl)cyclododecane, 1,1-bis(4-cyanatophenyl)cyclodecane, 2,2-bis(4-cyanatophenyl)adamantanone, 4,4′-bis(4-cyanatophenyl)octahydro-1,4:5,8-dimethanonaphthalen-2(1H)ylidene and 5,5-bis(4-cyanatophenyl)hexahydro-4,7-methanoindane.
7. A dicyanate compound which is 1,1-bis(4-cyanatophenyl)cyclododecane.