Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2007-06-28
2011-12-20
Le, Hoa (Holly) (Department: 1788)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C528S064000, C528S066000, C528S086000
Reexamination Certificate
active
08080317
ABSTRACT:
A coated granule obtained by coating a bioactive substance-containing granule with a urethane resin obtained by reaction of an aromatic polyisocyanate with a polyol having an average molecular weight of 300 to 5000, wherein the polyol contains a polycaprolactonepolyol and a hydroxy fatty acid ester of the formula (I): (wherein, X represents —CH2-CH2- or —CH═CH—, n represents 1, 2 or 3, m represents 0, 1 or 2, and n+m is 2 or 3. In the case of n+m=2, A represents a C2 to C8 alkanediyl group, and in the case of n+m=3, A represents a C3 to C8 alkanetriyl group.) as the coat film, is capable of controlling elution of the bioactive substance appropriately, and, the urethane resin forming the coat film shows degradability in soil.
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Le Hoa (Holly)
Panitch Schwarze Belisario & Nadel LLP
Sumitomo Chemical Company Limited
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