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Coated granular material coated with urethane resin
专利权人:
住友化学株式会社
发明人:
渡邉 敦
申请号:
JP2007193186
公开号:
JP5412716B2
申请日:
2007.07.25
申请国别(地区):
JP
年份:
2014
代理人:
摘要:
<;P>;PROBLEM TO BE SOLVED: To use an easily degradable resin as the resin used for coating particulates containing biologically-active substances. <;P>;SOLUTION: This easily-degradable resin is a urethane resin obtained by reacting an aromatic polyisocyanate and a polyol having the molecular weight of 300-5,000. The polyol includes polycaprolactone polyol and hydroxyfatty acid ester represented by general formula (I) (wherein X is -CH<;SB>;2<;/SB>;-CH<;SB>;2<;/SB>;- or -CH=CH-; n is 1, 2 or 3; m is 0, 1 or 2; n+m is 2 or 3; when n+m is 2, A is 2-8C alkane-di-yl and n+m is 3, A is 3-8C alkane-tri-yl). The objective coated granular material is obtained by coating the granular material containing biologically-active substances with the above urethane resin. <;P>;COPYRIGHT: (C)2008,JPO&INPIT
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