Weather resistant polyacetal composition
AssigneePolyplastics Co., Ltd.
InventorsHitohisa Takagaki, Hiroshi Okuda
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Abstract
A polyacetal resin composition comprises a polyacetal resin, (A) a light stabilizer selected from the group consisting of a benzotriazole compound, a benzophenone compound, an aromatic benzoate compound, a cyanoacrylate compound, and an anilide oxalate compound and (B) an aliphatic acid ester. It is improved in stability to weathing.
Claims16
A polyacetal resin composition which comprises a polyacetal resin, (A) a light stabilizer present in an amount of 0.05-2 percent by weight, wherein said light stabilizer is a benzotriazole compound, (B) an aliphatic fatty acid ester obtained from a fatty acid and a polyalkylene glycol, wherein said aliphatic fatty acid ester is present in an amount of 0.1-5 percent by weight, and (C) a hindered amine which is a piperidine derivative, wherein said piperidine derivative is an adipate or sebacate derivative having sterically hindered groups, the combination of (A), (B) and (C) having a synergistic effect in terms of weathering stability.
Dependencies are inferred from the claim text.