A horticultural growing medium comprises a polyisocyanate-polyol-based polymer, and at least one filler material. A method of making a horticultural growing medium comprises the steps of mixing at least one filler material with a polyisocyanate-polyol-based quasi-prepolymer composition, to form a quasi-prepolymer/filler...http://www.google.fr/patents/US6479433?utm_source=gb-gplus-shareBrevet US6479433 - Polyurethane foam composites for grower applications and related methods
Polyurethane foam composites for grower applications and related methods
