Flameproofing dispersions containing phosphoric acid derivatives

Claim 1

As a flameproofing composition for regenerated cellulose, a fine dispersion of a flameproofing agent in water, said flameproofing agent being a compound of the formula, ##STR62## in which each R, independently, is a radical --OR 1 (a) or ##STR63## or two moieties R bound to the same phosphorus atom form a radical (c), ##STR64## and each of the other two moieties R, independently, is a radical (a) or (b), or the other two moieties R bound to the same phosphorus atom form a second radical (c), independent from the first radical (c); each of X 1 , X 2 , Y and Z, independently, is oxygen or sulphur; n is zero or 1; A is a radical (a) or ##STR65## each R 1 , independently, is methyl; ethyl or propenyl, each unsubstituted or substituted by 1 to 3 halo substituents or by a (C 1-6 ) alkoxy group; (C 3-12 ) alkyl or (C 4-12 ) alkenyl, each unsubstituted or substituted by 1 to 4 halo substituents; (C 5-8 ) cycloalkyl or (C 5-8 ) cycloalkyl (C 1-4 ) alkyl containing a total of 7 to 9 carbon atoms, each unsubstituted or substituted by 1 or 2 halo substituents; phenyl, unsubstituted or substituted by 1 to 5 halo substituents or by 1 to 3 substituents selected from (C 1-3 ) alkyl and (C 1-3 ) alkoxy; or phenyl (C 1-4 ) alkyl, unsubstituted or substituted aromatically by 1 to 5 halo substituents or by 1 to 3 substituents selected from (C 1-3 ) alkyl and (C 1-3 ) alkoxy; each R 2 , independently, is (C 1-4 ) alkyl; cyclohexyl; benzyl; or phenyl, unsubstituted or substituted by 1 or 2 chloro substituents of which only one can occupy or ortho-position, by a bromo substituent in the para-position, or by 1 or 2 substituents selected from (C 1-3 ) alkyl and (C 1-3 ) alkoxy, the aggregate of the carbon atoms thereof not exceeding 3; each R 3 , independently, is (C 1-4 ) alkyl or hydrogen; or any R 2 and R 3 , independently, together with the nitrogen atom to which they are bound, form a 5- or 6-membered, saturated heterocyclic ring which may contain as a ring member an oxygen or sulphur atom, or a second nitrogen atom to which is bound a (C 1-4 ) alkyl group; each R 4 and R 5 , independently, is hydrogen; (C 1-4 ) alkyl; CH 2 Cl; CH 2 Br or phenyl; or any R 4 and R 5 , independently, together with the carbon atom to which they are bound, form a cyclohexylidene, cyclohexenylidene or 3,4-dibromocyclohexylidene ring; each R 6 and R 8 , independently, is hydrogen or (C 1-4 ) alkyl; each R 7 , independently, is hydrogen or methyl, R 9 is methyl; ethyl, unsubstituted or substituted by a halo substituent; propyl, unsubstituted or substituted by 1 or 2 halo substituents; (C 4-12 ) alkyl, unsubstituted or substituted by 1 to 3 halo substituents; cyclohexyl; benzyl; or phenyl, unsubstituted or substituted by 1 or 2 substituents selected from (C 1-3 ) alkyl and (C 1-3 ) alkoxy, the aggregate of the carbon atoms thereof not exceeding 3, by 1 or 2 chloro substituents, by 1 or 2 chloro substituents and by 1 or 2 substituents selected from (C 1-3 ) alkyl and (C 1-3 ) alkoxy, the aggregate of the carbon atoms thereof not exceeding 3, by a bromo substituent in the para-position or by a bromo substituent in the para-position and by 1 or 2 substituents selected from (C 1-3 ) alkyl and (C 1-3 ) alkoxy, the aggregate of the carbon atoms thereof not exceeding 3; R 10 is hydrogen; methyl; ethyl, unsubstituted or substituted by a halo substituent; propyl, unsubstituted or substituted by 1 or 2 halo substituents; (C 4-12 ) alkyl, unsubstituted or substituted by 1 to 3 halo substituents; cyclohexyl; benzyl or phenyl; or R 9 and R 10 , together with the nitrogen atom to which they are bound, form a 5- or 6-membered, saturated heterocyclic ring which may contain as a ring member an oxygen or sulphur atom, or a second nitrogen atom, to which is bound a (C 1-4 ) alkyl group, with the provisos that: (i) when one or more of X 1 , X 2 and Y is oxygen, then Z can only be oxygen, (ii) when X 1 and Y are both oxygen, then only up to 2 of the moieties R can be a radical (a), (iii) when there are more than 2 radicals (a) in the molecule, only up to 2 of them can be methoxy, (iv) when Z is oxygen and n is zero, only one radical (c) can be present in the molecule, (v) when X 1 or Y is oxygen, then R 2 in any radical (b) attached to that same phosphorus atom as the oxygen atom is other than alkyl, (vi) when two radicals (b) are attached to a phosphorus atom and X 1 or Y attached to that same phosphorus atom is sulphur, then both of the moieties R 2 in these radicals (b) are (C 1-4 ) alkyl, (vii) when n is 1, or when n is zero and R 2 in any radical (b) is (C 1-4 ) alkyl, any R 3 , or R 3 in that same radical (b), respectively, is other than hydrogen, (viii) at least one of R 4 , R 5 , R 6 , R 7 and R 8 in any radical (c) is other than hydrogen, (ix) when each of R 4 and R 5 , independently, in any radical (c) is CH 2 Cl or CH 2 Br or both R 4 and R 5 , together with the carbon atom to which they are bound form one of the rings indicated above, each of R 6 , R 7 and R 8 in the same radical (c) is hydrogen, and (x) when each of X 1 and Y is oxygen, each of R 4 and R 5 , independently, in any radical (c) is CH 2 Cl or CH 2 Br or both R 4 and R 5 , together with the carbon atom to which they are bound, form one of the rings indicated above.