C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
252/31, 402/404,
C08G 61/00 (2006.01) A61L 15/60 (2006.01) B01J 20/26 (2006.01) C08F 8/14 (2006.01) C08F 220/04 (2006.01) C08L 35/00 (2006.01)
Patent
CA 2016395
A water soluble, substantially linear, polymer is made by copolymerisation of a water soluble blend of monoethylenically unsaturated monomers comprising carboxylic acid monomers such as acrylic acid and a hydroxylic monomer of the formula CHR1=CR2-Y-M a-OH where R1 is hydrogen or carboxy, R2 is hydrogen, carboxy or methyl, Y is O, CH2O or COO, M is alkyleneoxy and a is at least 5. This polymer can be cross linked, generally after being shaped by extrusion or other shaping of an aqueous solution of the polymer, to form cross linkages between the carboxyl and hydroxyl groups. The shaped elements can have high eater absorbency and can be in the form of, for instance, fibres or films.
Allen Adrian S.
Borden Ladner Gervais Llp
Ciba Specialty Chemicals Water Treatments Limited
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