CPC C08L 71/00 (2013.01) [C09D 171/00 (2013.01)] | 19 Claims |
1. A water-borne polymer composition, comprising:
particles of at least one polyaryletherketone polymer [polymer (PAEK)], said particles possessing an average particle size d50 of at least 1 and of at most 25 μm wherein d50 is the size at which 50% in volume of the polymer (PAEK) is comprised of particles with a diameter less than this value and is determined by laser light scattering according to ISO 13320;
at least one aromatic polyamic acid comprising recurring units, more than 50% mol of said recurring units comprising at least one aromatic ring and at least one amic acid group and/or imide group [recurring units (RPAI)], more than 50% mol of recurring units (RPAI) comprising at least one amic acid group [polymer (PAI)], wherein part or all of the amic acid groups are neutralized by at least one basic compound (B);
water;
at least one organic solvent (S), different from said basic compound (B), selected from the group consisting of mono-alcohols, polyols, glycol derivatives and their mixtures, said solvent (S) being present in an amount of at least 1 and at most 15% wt with respect to the total weight of the composition.
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