This paper initially discussed synthesis and modification of tetrafunctional epoxy resin(1,1,2,2- tetrakis(hydroxy phenye)ethane),as well as application in copper clad laminate.
It is used for chronic hepatitis, chronic gastricism, stomach and duodenum ulcer, neuralgia among ribs and neural functional disease.Efficacy: To replenish yin and soothe the depressed liver.
It is a labor to task the faculties of a man — such problems of profit and loss, of interest, of tare and tret,(8) and gauging of all kinds in it, as demand a universal knowledge.