5,5-bis(perfluoroalkylheteromethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphor inanes, derived acyclic phosphorus acids and salts or esters thereof

Abstract From the Canadian patent

5,5-Bis(perfluoroalkylheteromethyl)-2-hydroxy-2-oxo-1,3,2-dio xaphosphorinanes, derived acyclic phosphorus and phosphoric acids obtained by ring-opening and , salts or, esters thereof are prepared from heteroatom containing perfluoroalkyl terminated, neopentyl glycols of the formula HOCH2C(CH2-X-E n-R p)2CH2OH by cyclization with, appropriate phosphorus containing esters or acids or hydrolysis. These compositions provide improved thermal stability and useful low surface , energy oil, and water repellent coatings for textiles glass, paper, leather and other , materials. Another aspect of this invention relates to the use of the phosphite group containing, products as polymer stabilizers.