C - Chemistry – Metallurgy – 05 – D
Patent
C - Chemistry, Metallurgy
05
D
71/47
C05D 3/02 (2006.01) C05C 9/00 (2006.01) C05G 3/00 (2006.01)
Patent
CA 1058023
- 1 - ABSTRACT OF THE DISCLOSURE A coated product providing for the controlled release of an active constituent, such as a fertilizer, over a long period of time comprising a core of an active constituent and two water insoluble coatings. The first coating surrounding the core contains masonry cement, and the second coating preferably contains a blend of one or more thermoplastic polymers and a wax. The coated produce provides an unusually long lasting fertilizer at relatively low cost. - 1 -
202992
Scheiderer Edwin L.
Wittenbrook Lawrence S.
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