SALT-FREE AQUEOUS DISPERSIONS OF WATER SOLUBLE (CO)POLYMERS BASED ON CATIONIC MONOMERS, METHOD FOR MAKING SAME AND USES THEREOF

摘要

The invention concerns a salt-free aqueous dispersion of a water soluble dispersion obtained from a composition of monomers comprising, for 100 mole parts, 0.5 to 99.5 mole parts of at least a monomer (I), wherein R<1> = H or -CH3; R<2> = -CH3; -C2H5; C3H7 or -C4H9; and the compound (I) is optionally quaternized on one of the nitrogen atoms, which is symbolised by the fact that the R<3>'s, X<-> and <+> associated with said nitrogen are between square brackets; when compound (I) is quaternized on a single nitrogen, R<3> and X<-> represent the following: (1) R<3> = -CH2-C6H5; and X<-> = Cl<-> or CH3OSO<->; or (2) R<3> = -(CH2)pCH3 with p an integer from 3 to 11; and X<-> = Br<-> or I<->; when compound (I) is quaternized on both nitrogen atoms, both X<-> can be identical or different and both R<3>, can be identical or different, in which case (3) R<3> = -CH3C6H5; and X<-> = Cl<->; and (4) R<3> = -(CH2)pCH3 with p an integer from 3 to 11; and X = Br<-> or I<->; (5) among compounds (I) quaternized on both nitrogen atoms and having both R<3> different, if one of the R<3> = -CH3, -C2H5 or C3H7; and X<-> = Cl<-> or CH3OSO<->, the other = -CH2C6C5, the associated X<-> representing Cl<->, or represents -(CH2)pCH3 with p an integer from 3 to 11, the associated X<-> representing Br<-> or I<->.