| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that polymer stabilizers obtained by conventional methods are powdery crystals and it is difficult to handle them due to dusting. Ž<P>SOLUTION: A granular stabilizer for polymers includes a compound expressed by formula (1) (in the formula, R<SP>1</SP>and R<SP>2</SP>each independently express H, 1-8C alkyl or 5-8C cycloalkyl; R<SP>3</SP>expresses H or 1-8C alkyl; and X expresses a single bond, S, O, 1-8C alkylidene or 5-8C cycloalkylidene). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
