Patent ID: 9512257
Filing Date: 2016-12-06
CPC Classification: C08G

Claim Text:
1. A phenolic-type phosphorous curing agent, having a molecular weight ranging between 550 and 12000, having a phosphorus content ranged between 3.74% and 9.06%, being halogen-free and nonflammable, and having a chemical structure described as chemical structure formulas (I), (II), (III), (IV) or (V): X═H; n is a positive integer greater than zero, and has a value determined by the molecular weight; where, X═H; n is a positive integer greater than zero, and has a value determined by the molecular weight; where, X═H; n is a positive integer greater than zero, and has a value determined by the molecular weight; where, X═H; n is a positive integer greater than zero, and has a value determined by the molecular weight; and G in the above chemical structures (I)-(V) is G