Wei Connaught Chemical | Industrial dedicated propylene glycol | propanediol by Wei Connaught Chemical. We are Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) at: Qingdao, Shandong specialized in: phenol, aniline, ethylene, n-butanol, isobutanol, n-propanol, isopropanol, methanol, propylene glycol is not unsaturated polyester, an important raw material epoxy resin, polyurethane resin, the amount of this area accounts for about 45% of the total consumption of about propylene glycol, which is used extensively for unsaturated polyester surface coatings and reinforced plastics. The viscosity and moisture absorption of propylene glycol, and non-toxic, and thus in the food, pharmaceutical and cosmetic industry, widely used as a hygroscopic agent, antifreeze agents, lubricants and solvents. In the food industry, propylene glycol and propylene glycol fatty acid esters produced by the reaction of fatty acids, mainly for food emulsifier; Propylene glycol is a good solvent for condiments and pigment. Propylene glycol used in the pharmaceutical industry for the manufacture of various types of ointments, salves solvents, softeners, and excipients, etc., because propylene glycol has a good miscibility with a variety of perfumes, cosmetics, and thus also used as solvents and softening agents and the like. Propylene glycol is also used as wetting agents in tobacco, fungicides, lubricants, and food processing equipment, food marking ink solvents. Aqueous glycol anti-freeze agents are effective. In addition to dirt and strong chemical reaction outside propylene glycol, propylene glycol dyeing performance is better than nylon manufacturers, can usually disperse dyeing and printing, without the use of special chemicals, dyed with a dry, crisp characteristics. According to Shell (Shell) predicts that by 2015 the world's PTT fiber demand will more than 2 million t, and has broad prospects for industry-specific applications propylene glycol, is the development of new varieties of synthetic hotspot. Development glycol PTT fiber, suggesting demand for its basic raw material for synthesis of propylene glycol great, if PPT all PET and other synthetic alternatives, propylene glycol annually in China alone needs 1 million t, so China has already propanediol production technology development as a national "fifteen" scientific and technological items