Patent ID: 6156222
Filing Date: 2000-12-05
Classification: A62D,C08G,D21H

Abstract:
A paper sizing chemical and foam stabilizer which is a perfluoroalkyl-allyloxy- and perfluoroalkyl-iodopropyloxy-substituted polyaminoacid or a poly-R.sub.F -fluoroallyl-substituted polyaminoacid, which contains, in random distribution, q units of A-1, r units of A-2, s units of A-3 and t units of A-4 in whichA-1 and A-2 are perfluoroalkyl-substituted amino groups of the formulae ##STR7## A-3 is a hydrophilically substituted amino or amido group of the formula ##STR8## and A-4 is a substituted amino or amido group of the formula ##STR9## wherein T is --CH.sub.2 CH(OH)CH.sub.2 --O--CH.sub.2 -- or a direct bond, with the proviso that when T is --CH.sub.2 CH(OH)CH.sub.2 --O--CH.sub.2 --, Q.sub.F is of the formulae--CHI--CH.sub.2 --R.sub.F (Q.sub.F1) and --CH.dbd.CH--R.sub.F (Q.sub.F2)and consists of 5-50 mole % Q.sub.F1 and 50-95 mole % Q.sub.F2, and, when T is a direct bond, Q.sub.F, is--CH.sub.2 CH.dbd.CF--R.sub.F ' (Q.sub.F3),q, r, s, and t are integers from zero to 100, the sum of q+r+s+t is 5 to 200, the sum of q+r is equal or greater than 2, and the ratio of q+r/s is 0.05 to 0.5,R is hydrogen or methyl,R.sub.F is independently a monovalent perfluorinated alkyl or alkenyl, straight or branched organic radical having four to twenty fully fluorinated carbon atoms,R.sub.F ' is independently a monovalent perfluorinated alkyl or alkenyl, straight or branched organic radical having three to nineteen fully fluorinated carbon atoms, with each R.sub.F and R.sub.F ', radical being identical or different from the other R.sub.F and R.sub.F ' radicals,X is hydrogen, --CH.sub.2 CH(OH)CH.sub.2 --O--CH.sub.2 CH.dbd.CH.sub.2 or --G--Y,G is a direct bond or a linking group of the formula --CH.sub.2 --, --CH.sub.2 CHR--, --CH.sub.2 --CH.sub.2 C.sub.6 H.sub.4 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --C.sub.6 H.sub.4 --, --CH(--COOH)CH.sub.2 --, --CH.sub.2 CH.sub.2 CONHCH(OH)--, --COR.sub.1 --, --CH.sub.2 CHRCONHC(CH.sub.3).sub.2 (CH.sub.2)--, or a mixture thereof,wherein R is as defined above,R.sub.1 is --CH.dbd.CH--, --CH.sub.2 CH.sub.2 --, or --C.sub.6 H.sub.4 -- andY is an acid group of the formula --COOH, --SO.sub.3 H, --PO.sub.3 H.sub.2, or --(PO.sub.3 H).sub.3 H, or a salt thereof, or is --CONH.sub.2 or --CH(OH)CH.sub.2 OH, or a mixture of these groups,R.sub.2 is an alkyl radical with 1 to 20 carbon atoms, or is --CH.sub.2 CH.sub.2 CON(CH.sub.3).sub.2, --CH.sub.2 CH.sub.2 CONHCH.sub.2 OH, --CH.sub.2 CH.sub.2 CON(CH.sub.2 OH).sub.2, --CH.sub.2 CH.sub.2 N(R.sub.4).sub.2, --CH.sub.2 CR.sub.1 --COOR.sub.4 or --CH.sub.2 CH(OH)CH.sub.2 --O--CH.sub.2 CH.dbd.CH.sub.2, whereinR.sub.4 is an alkyl radical with 1 to 18 carbon atoms or --CH.sub.2 CH.sub.2 --OH,R.sub.3 is the same as R.sub.2 or is hydrogen, and R.sub.1 is defined as above.