Polyacetal resin composition

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 59/00 (2006.01) C08K 3/38 (2006.01) C08K 5/00 (2006.01) C08K 5/13 (2006.01) C08K 5/134 (2006.01) C08K 5/3492 (2006.01) C08K 13/02 (2006.01) G11B 23/113 (2006.01) C08L 33/26 (2006.01) C08L 61/28 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2220174

To provide a polyacetal resin composition having an excellent corrosion inhibiting effect on metals, particularly reduced in the adverse effect on magnetic tapes or the like, and suitable for use in producing component parts of a magnetic tape cassette such as a reel hub or tape guide, 100 parts by weight of a polyacetal resin (A) is blended with 0.05 to 5 parts by weight of an antioxidant (B), 0.001 to 5 parts by weight of a specified nitrogen-containing compound (C), and 0.001 to 3 parts by weight of a boric acid compound.

Pour obtenir une composition de résine polyacétalique douée d'un excellent effet d'inhibition de la corrosion des métaux, particulièrement dont les effets défavorables sur les bandes magnétiques ou autres produits semblables sont réduits, et qui convient pour utilisation dans la production des parties constituantes d'une cassette de bande magnétique comme le moyeu porte-bobine ou les guide-bande, on mélange 100 parties en poids d'une résine polyacétalique (A) avec 0,05 à 5 parties en poids d'un antioxydant (B), 0,001 à 5 parties en poids d'un composé azoté spécifié (C) et 0,001 à 3 parties en poids d'un composé dérivé de l'acide borique.

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