Patent ES-8602167-A1 (ES)
Title: Leather with fluorochemical finish.
IPC: D06M13/402
Filed: 1983-10-21
Abstract: Oil and water repellency is imparted to fibrous substrates using fluorodchemical cpds. (I) which are normally solid water-insoluble aliphatic carboxylic acids or salts which are self-dispersible in water and which contain fluoroaliphatic and aliphatic carboxylic radicals and urylene, carbamato, carboxamido and/or carbonyloxy radicals bonded together by organic linkages. - More specifically, (I) are of formula (RQAQ')m(Q)COOM (where R is a fluoroaliphatic or aliphatic gp. Q is an organic linkage Q' is Q or QAQ A is NHCONH, CONH, OCO or OCONH M is H or an alkali metal, NH4 or organoammonium ion m=1 or 2, provided that R is fluoroaliphatic when m=1 and at least 1 R is fluoroaliphatic when m=2 n=0 or 1). - Also claimed are cpds., useful in the above process, as defined for (I) with urylene and/or carbamato radicals. - The process is esp. applicable to chrome-tanned leather, giving durable oil and water repellency without adversely affecting appearance, feel, hand, etc. Cpds. EPAB- EP-107948 B A process for imparting oil and water repellency to a fibrous substrate with fluorochemicals, characterized by the feature that said fluorochemicals are fluorochemical compounds which are normally solid, water insoluble, aliphatic carboxylic acids and salts thereof which are self-dispersible in water and contain at least 20 weight percent fluorine, said compounds containing (a) fluoroaliphatic radicals, said fluoroaliphatic radicals being monovalent and having at least three fully fluorinated carbon atoms and a terminal perfluoromethyl group, (b) aliphatic carboxylic radicals, said aliphatic carboxyl radicals being organic compounds having a carboxyl group, -COOH, the carbon atom of which is bonded to a carbon atom which is part of an aliphatic moeity, and (c) urylene and/or carbamato radicals, said radicals bonded together by organic linkages selected from aliphatic moieties, aromatic moieties, or combinations thereof with hetero atom-containing moieites which linkages are free of interfering moieties. - (22pp) - EP-107948 B Oil and water repellency is imparted to fibrous substrates using fluorodchemical cpds. (I) which are normally solid water-insoluble aliphatic carboxylic acids or salts which are self-dispersible in water and which contain fluoroaliphatic and aliphatic carboxylic radicals and urylene, carbamato, carboxamido and/or carbonyloxy radicals bonded together by organic linkages. - More specifically, (I) are of formula (RQAQ')m(Q)COOM (where R is a fluoroaliphatic or aliphatic gp. Q is an organic linkage Q' is Q or QAQ A is NHCONH, CONH, OCO or OCONH M is H or an alkali metal, NH4 or organoammonium ion m=1 or 2, provided that R is fluoroaliphatic when m=1 and at least 1 R is fluoroaliphatic when m=2 n=0 or 1). - Also claimed are cpds., useful in the above process, as defined for (I) with urylene and/or carbamato radicals. - The process is esp. applicable to chrome-tanned leather, giving durable oil and water repellency without adversely affecting appearance, feel, hand, etc. Cpds. (I) are generally colourless. (Dwg.0/0) USAB- US4525305 A Oil and water repellency are imparted to fibrous substrates when contacted with a compsn. comprising normally solid fluorochemical cpd. which is a water insoluble, aliphatic carboxylic acid or its salt and is self-dispersible in water. Cpds. contain: (a) fluoroaliphatic gps. contg. 3 or more fully fluorinated-C and a terminal perfluoromethyl gp. (b) aliphatic carboxylic gps. and (c) arylene and/or carbamate gps. such that gps. are bonded together by organic linkages contg. no interfering gp. Cpd. contains 20 wt.% or more F as (a). - Pref. cpd. has formula (R-Q-A-Q'-)m(Q)nCOOM where R is fluoroaliphatic or F-free aliphatic Q is an organic linkage Q' is Q or Q-A-Q each A is NHCONH or OCONH M is H, alkali metal, NH4 or organoammonium m is 1 when R is fluoroaliphatic and 2 when 1R or both R is fluoroaliphatic and n is 1 or 0 when m is 1.