Since most capsules are made of gelatin, the aqueous coating process of capsules is very sensitive and requires a very long process time due to the aqueous solubility of gelatin substrate, resulting in high costs. Accordingly, it would be very advantageous to provide a method for dry powder coating capsules without using an organic solvent […]

Ethylene glycol (EG) is an important basic raw material and chemical intermediate, which is often used as solvent, antifreeze, lubricant, plasticizer, surfactant and mainly used to synthesize polyester resins and fibers, etc. Currently, the annual demand of EG is more than 20 million tons, while about half of the market demand is in China. There […]