Patent ID: 8025709
Filing Date: 2011-09-27
Classification: C05B,C05C,C05G,C08K,C08L,C09D,Y02E,Y02W

Abstract:
1. A fertilizer product comprising: a quantity of a solid fertilizer; and a polymer-containing composition applied to said fertilizer, said polymer-containing composition including a substantially water soluble copolymer containing individual quantities of maleic and itaconic moieties, water, an organic compound drying agent, said composition further including from about 0.5-5% by weight boron as boric acid, an amount of bimodal vinyl polymer therein, said bimodal vinyl polymer including individual high and low molecular weight vinyl polymer fractions, said bimodal vinyl polymer comprising low MW PVA having a weight averaged molecular weight Mw of from about 13,000-23,000, and high MW PVA having a weight averaged molecular weight Mw of about 145,000 and above, said low MW PVA being present in an amount greater than said high MW PVA, said fertilizer product prepared by applying said polymer-containing composition to said solid fertilizer, and allowing said drying agent and a substantial part of the water present in the applied composition to evaporate, so that the fertilizer product does not contain said drying agent or water to any substantial degree.