发明授权
US4097587A 1,3,8-Triazaspiro�4.5!decane-2,4-dione polymer stabilizers 失效
1,3,8-Triazaspiro {8 4.5 {9癸烷-2,4-二酮聚合物稳定剂

1,3,8-Triazaspiro�4.5!decane-2,4-dione polymer stabilizers
摘要:
Novel 7,7,9,9-tetra-substituted-1,3,8-triazaspiro�4.5!decane-2,4-diones having an alkyl or allyl group at either the 6- or the 10- position are useful for the stabilization of polymers against photo- and thermal- deterioration.
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