Nick Peter Wynnyk;Baozhong Xing;Srirakrishna Maruvada
发明人:
Srirakrishna Maruvada,Nick Peter Wynnyk,Baozhong Xing
申请号：
US13291698
公开号：
US08795406B2
申请日:
2011.11.08
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating including a mixture of a cross-linked polyol and an isocyanate, and optionally a wax, is described. In some embodiments, the cross-linked polyol can be cross-linked with sulfur, oxygen, and/or a peroxide cross-linking moiety. In one embodiment the cross-linked polyol is castor oil cross-linked with sulfur.
