C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) A01G 9/10 (2006.01) C05D 9/02 (2006.01) C05F 9/04 (2006.01) C05F 11/02 (2006.01) C05G 3/02 (2006.01) C05G 3/06 (2006.01) C08G 18/32 (2006.01) A01G 31/00 (2006.01)
Patent
CA 2356830
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 mixture and applying water to the quasi- prepolymer/filler mixture to form a hydrophilic growing medium. A method of growing plant seedlings comprising planting a seed or seedling in a horticultural growing medium containing a hydrophilic polyisocyanate-polyol- based polymer and at least one filler material, is also disclosed. A hydrophilic urethane polymer comprises the reaction product of a quasi-prepolymer and water wherein the quasi-prepolymer contains an isocyanate and a hydrophilic polyol. A method of making a hydrophilic polyurethane comprises the steps of adding a hydrophilic polyol to an isocyanate, mixing the polyol and isocyanate to form a quasi-prepolymer, and contacting the quasi-prepolymer with water.
Frisch Kurt C.
Hann Daniel G.
Sendijarevic Vahid
Deeth Williams Wall Llp
Smithers-Oasis Company
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