Heteroatom containing perfluoroalkyl terminated neopentyl glycol

Details Heteroatom containing perfluoroalkyl terminated neopentyl glycol Heteroatom containing perfluoroalkyl terminated neopentyl glycol

1989-04-14

1990-08-07

Welsh, Maurice J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

564102, 564203, 564506, 568 28, 568 29, 568 30, 568 31, 568 32, 568 46, 568674, C07C 6952

Patent

active

049469924

ABSTRACT:
Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formulas HO[--CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H or HO[--CH.sub.2 C(CH.sub.2 X--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H are prepared from halogenated neopentyl glycols or oxetanes and thiols of the formula R.sub.f --E--SH, amines of the formuls R.sub.f --E--NH--R, alcohols of the formula R.sub.f --E--OH or perfluoro-amides, wherein R.sub.f 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 isocyanated 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 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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