| abstract |
The articles, comprising a foamed synthetic polymer matrix contg. a number of interconnected cells, at least some of which form surface pores, are characterised by containing in the cells an additive (e.g. cosmetic, polish, cleaning agent, antimicrobial agent, deodorant) which is relatively insol. in the solid polymer, can be sepd. from the polymer and is not a medicine. The matl. can be supplied as a soln. of polymer in volatile blowing agent, contg. dissolved or dispersed additive, e.g. in an aerosol container, and used to form articles at normal temp. and press. |