Paper making and fiber liberation – Processes and products – With coating after drying
Patent
1984-07-23
1985-08-20
Chin, Peter
Paper making and fiber liberation
Processes and products
With coating after drying
162158, 252310, 252311, 427394, 427395, 427396, 428264, 428267, 4285371, D21H 308
Patent
active
045362548
ABSTRACT:
Ammonium and amine salts of acids having the formula ##STR1## wherein R.sub.f is a perfluoroalkyl group; R.sub.1 is alkylene or substituted alkylene; X is --S--, --SO--, or --SO.sub.2 --; R.sub.2 is hydrogen, alkyl, aryl, substituted aryl, --B--COOH or a --B--COO anion; B is a covalent bond, arylene or alkylene; Z is the ammonium or amine cation; p is the anionic charge, q is the cationic charge; and p.sub.1 and q.sub.1 are the balanced mole equivalents respectively, are provided. These salts applied in the form of aqueous dispersions or emulsions, are useful in rendering cellulosic and natural and synthetic polyamide materials oil and water repellent.
REFERENCES:
patent: 2144552 (1939-01-01), Shonie
patent: 2278499 (1942-04-01), Smith et al.
patent: 2753372 (1956-07-01), Lundberg
patent: 2762842 (1956-09-01), Hafliger et al.
patent: 2843471 (1958-07-01), Fischer
patent: 2976316 (1961-03-01), Boresch et al.
patent: 3293306 (1966-12-01), Le Bleu
patent: 3810939 (1974-05-01), Chaudhuri et al.
patent: 4239915 (1980-12-01), Falk
Borsodi Istvan
Falk Robert A.
Chin Peter
Ciba-Geigy Corporation
LandOfFree
Ammonium and amine salts of di-perfluoroalkyl group containing a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ammonium and amine salts of di-perfluoroalkyl group containing a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ammonium and amine salts of di-perfluoroalkyl group containing a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-559178