D - Textiles – Paper – 06 – M
Patent
D - Textiles, Paper
06
M
8/93.15
D06M 13/00 (2006.01)
Patent
CA 1210905
TREATMENT OF LEWIS BASE CONTAINING POLYMERS TO IMPROVE ANTISTATIC, HYGROSCOPIC AND DYE RECEPTIVE PROPERTIES Abstract of the Disclosure A method is provided for treating and modifying solid, high molecular weight Lewis base containing polymers, particularly shaped structures such as fibers, filaments or knitted fabrics, to form branched polymer with improved electrical conductivity, water absorbency and dye receptivity while retaining the essential struc- tural shape. The method comprises heating the polymer in the presence of an aqueous treating solution contain- ing an ethylenically unsaturated monomer which does not readily polymerize under the conditions of treatment and a catalyst which is a source of hydrogen ions or protons. The treatment is carried out at a temperature and for a sufficient time so as to effect essentially single molecule addition of the monomer pendent to the polymer chain with substantial- ly no graft polymerization of the monomer to the polymer. A particularly preferred embodiment of the method is the treatment of nylon 6,6 knitted fabric with an aqueous solution of acrylamide and hydrochloric acid for about one hour at 95°C to 100°C.
418201
Gowling Lafleur Henderson Llp
Intera Company Ltd.
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