Heteroatom containing perfluoroalkyl terminated neopentyl...

Details Heteroatom containing perfluoroalkyl terminated neopentyl... Heteroatom containing perfluoroalkyl terminated neopentyl...

C - Chemistry, Metallurgy

07

C

402/157, 402/191

C07C 317/18 (2006.01) C07C 43/13 (2006.01) C07C 215/18 (2006.01) C07C 311/04 (2006.01) C07C 313/12 (2006.01) C07C 323/12 (2006.01) C07C 323/25 (2006.01) C07C 323/41 (2006.01) C07D 305/06 (2006.01) C08G 18/38 (2006.01) C08G 18/46 (2006.01) C08G 18/50 (2006.01) C08G 18/52 (2006.01) C08G 63/682 (2006.01) C08G 65/18 (2006.01) C08G 65/22 (2006.01) C08G 71/04 (2006.01) D06M 15/576 (2006.01) D06N 3/14 (2006.01)

Patent

CA 1338174

Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formulas HO[CH2C(CH2X-E-Rf)2CH2O]1-3-H or HO[-CH2C(CH2X-Rf)2CH2O]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/polyurethanes; 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.

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