the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels

Full Title

Compositions of unspecified macromolecular compounds > characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity (liquid crystal materials or compositions C09K19/00) > the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels