Perfluorinated alkyl hydrophobe hydroxyalkylcellulose associativ

Details Perfluorinated alkyl hydrophobe hydroxyalkylcellulose associativ Perfluorinated alkyl hydrophobe hydroxyalkylcellulose associativ

1992-04-02

1994-03-01

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

536 84, 536 85, 536 87, 536 95, 536 96, C08B 1106, C08B 1108, C08B 1114, C08J 305

Patent

active

052908291

ABSTRACT:
A purified hydroxyethylcellulose (HEC) or hydroxypropylcellulose (HPC) reacts with a perfluorinated alkyl glycidyl ether to produce an associative thickener wherein a fluorinated C.sub.8 chain is nearly as effective as a hydrocarbyl C.sub.16 straight chain hydrophobe. A preferred glycidyl ether is prepared by reacting a terminal hydroxyl of a perfluorinated surfactant with epichlorohydrin.

REFERENCES:
patent: 4228277 (1980-10-01), Landoll
patent: 4267302 (1981-05-01), Ohmori
patent: 4664978 (1987-05-01), Wu et al.
patent: 4870167 (1989-09-01), Zody et al.
D. J. Stewart, D. R. Purvis & C. R. Lowe, Journal of Chromatography, 510 (1990) 177-187, "Affinity Chromatography on Novel Perfluorocarbon Supports".

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