ApplicationNo. 533619 filed on 06/05/1990
US Classes:528/70, Reactant contains a fluorine atom528/299Halogen-containing reactant other than solely as halogen atom bonded to a carbonyl group
ExaminersPrimary: Welsh, Maurice J.
Attorney, Agent or Firm
International ClassC08G 018/38
AbstractHeteroatom containing perfluoroalkyl terminated neopentyl glycols of the formulas HO[--CH2 C(CH2 X--E--Rf)2 CH2 O]1-3 --H or HO[--CH2 C(CH2 X--Rf)2 CH2 O]1-3 --H are prepared from halogenated neopentyl glycols or oxetanes and thiols of the formula Rf --E--SH, amines of the formula Rf --E--NH--R, alcohols of the formula Rf --E--OH or perfluoro-amides, wherein Rf is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms.The polymeric reaction products of said fluorinated diols, and optionally other diols with isocyanates to prepare polyurethanes; with amines and isocyanates to prepare polyureas/polyuretanes; with acids or derivatives to prepare polyesters or polycarbonates are disclosed. These include polymeric, random or block urethane, and/or urea, and/or ester compositions containing the residue of at least one Rf -neopentyl glycol containing two perfluoroalkyl hetero groups.These polymeric compositions provide improved thermal stability and useful low surface energy oil and water repellent coatings, and soil-release properties for textiles, glass, paper, leather and other materials.