Light stabilizer composition and resin composition containing same
AssigneeAdeka Corporation
InventorsTakashi AYABE, Takashi USUI, Minako YOKOMORI
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Abstract
A light stabilizer composition containing a hindered amine compound obtained by the reaction between a 2,2,6,6-tetramethylpiperidinol and a carbonic ester and having improved handling properties. The composition contains (A) 100 parts by mass of silica having a water content of 2 to 7 wt % impregnated with (B) 10 to 300 parts by mass of a hindered amine compound represented by general formula (1). The composition preferably contains (C) 5 to 500 parts by mass of a benzotriazole light stabilizer represented by general formula (3). The symbols used in formulae (1) and (3) are as defined in the description.
Claims9
A light stabilizer composition comprising (A) 100 parts by mass of silica having a water content of 2 to 7 wt % impregnated with (B) 10 to 300 parts by mass of a hindered amine compound represented by general formula (1):
- wherein R1 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 30 carbon atoms, a hydroxyalkyl group having 1 to 30 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, a hydroxyalkoxy group having 1 to 30 carbon atoms, or an oxy radical;
- and R2 represents an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, or a group represented by general formula (2):
- wherein R3 has the same meaning as R1.
Dependencies are inferred from the claim text.