Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur containing
Patent
1988-06-20
1990-02-06
Welsh, Maurice J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur containing
568 29, 568 30, 568 31, 568 32, 568 46, C07C14700
Patent
active
048989819
ABSTRACT:
Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formula HO[--CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H prepared from halogenated neopentyl glycols and thiols of the formula R.sub.f --E--SH, or amines of the formula R.sub.f --E--NH--R wherein R.sub.f is a hydrophonic, olephobic fluoroaliphatic group of up to 20 carbon atoms, E is alkylene of up to 10 carbon atoms, optionally interrupted by up to three groups including --NR, --O, --S--, --SO.sub.2 --, --O.sub.2 C, CONR, and --SO.sub.2 NR, and X is S,SO.sub.2 or NR.sub.2, where R is independently hydrogen, alkyl, or hydroxyalkyl of 1 to 6 carbon atoms are described.
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 R.sub.f -neopentyl glycol containing two perfluoroalkylhetero groups.
These polymeric compositions provide improved thermal stability and useful low surface energy coatings with oil, water repellency and soil-release properties for textiles, glass, paper, leather and other materials.
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Clark Kirtland P.
Falk Robert A.
Karydas Athanasios
Ciba-Geigy Corporation
Hall Luther A. R.
Welsh Maurice J.
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