| http://www.w3.org/ns/prov#value | - emplified.For examples of the materials usable as the pelletization-resistant protective matrices of the invention which contains synthetic macromolecules, polyvinylacetaldiethylaminoacetate (AEA), dimethylaminoethylmetacrylate-methylmetacrylic acidcopolymer, vinylpyridine-styrene copolymer and the like are exemplified.(Heating of pelletization-resistant protective matrices)When natural macromolec
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