| 摘要 |
<p>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 R1 = H or -CH¿3; R?2 = -CH¿3?; -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) R3 = -CH¿2?-C6H5; and X?- = Cl-¿ or CH¿3OSO?-; or (2) R3 = -(CH¿2?)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 R3, can be identical or different, in which case (3) R3 = -CH¿3?C6H5; and X?- = Cl-¿; and (4) R3 = -(CH¿2?)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 R3 different, if one of the R3 = -CH¿3?, -C2H5 or C3H7; and X?- = Cl-¿ or CH¿3OSO?-, the other = -CH¿2?C6C5, the associated X?-¿ representing Cl-, or represents -(CH¿2?)pCH3 with p an integer from 3 to 11, the associated X?-¿ representing Br- or I-.</p> |
