Ether Oxygen Is Part Of The Chain Patents (Class 564/346)
- Hydroxy, bonded directly to carbon, or ether oxygen is attached directly or indirectly to the chain by acyclic nonionic bonding with no amino nitrogen between the hydroxy or attached ether oxygen and the aryl ring or ring system (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) (Class 564/348)
- The aryl ring or ring system is polycyclo (Class 564/352)
- Hydrogen or acyclic hydrocarbyl substituents only bonded directly to the part of the chain between the ether oxygen and amino nitrogen (Class 564/353)