Double bond modified hyperbranched polyester can overcome the defect that general powder coating cure at 120 , it can achieve about 70 ℃ low temperature curing, thereby expanding the application of powder coatings, it is not limited to metal substrate, the heat-sensitive substrate (such as wood, plastic, etc.) applications, it has  fast curing rate at low-temperature, high conversion rate, curing enthalpy is 70KJ/mol, compared to the curing enthalpy of methacrylic acid 57KJ/mol, it has obvious application advantages.Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers forwards from “Novel Concept for Low Temperature Curing Powder Coatings Based on Hyperbranched Polyesters” Mats Johansson, Eva MalmstrOm, Andreas Jansson, and Anders Hultt – Royal Institute of Technology Technical Articles, Vol. 72, No. 906, July 2000