| 摘要 |
Described is a composition of matter comprising a powdered, water-soluble, water-dispersible or water-swellable polymer, a compatible fragrance, either as a blend of fragrance with polymer or separately mixed, and one or more surfactants. The polymer may be extruded polyvinyl alcohol or partially hydrolyzed polyvinyl acetate. Also described is a toilet element moulded from the composition of matter, which may be either a toilet rim block for use in a toilet bowl, or a free-standing block for use in a toilet cistern, and processes for comparing the composition of matter and toilet element.
|
