POLYACETAL RESIN COMPOSITION AND SLIDING MEMBER

POLYACETAL RESIN COMPOSITION AND SLIDING MEMBER

PROBLEM TO BE SOLVED: To provide a polyacetal resin composition which produces less formaldehyde and has excellent sliding properties, and a sliding member which is obtained by molding the polyacetal resin composition.SOLUTION: The polyacetal resin composition contains, per 100 pts.wt. of (a) a poly...

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Hauptverfasser: MIZUGUCHI KAZUHIRO, SUZUKI KATSUTOSHI, USAMI KOJI, HANABUSA KAZUTO, KAWAGUCHI KUNIAKI, WATANABE YOSHINORI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a polyacetal resin composition which produces less formaldehyde and has excellent sliding properties, and a sliding member which is obtained by molding the polyacetal resin composition.SOLUTION: The polyacetal resin composition contains, per 100 pts.wt. of (a) a polyacetal resin having ≤0.5 wt.% of labile end groups, 10-150 pts.wt. of (b) a cellulose fiber powder having an aspect ratio of 1-20 and an α-cellulose content of 98-100%, 0.01-3 pts.wt. of (c) a hindered phenol antioxidant, 0.01-3 pts.wt. of (d) at least one nitrogen-containing compound that is selected from among aminotriazine compounds, guanamine compounds, hydrazide compounds and polyamides, and 0.01-3 pts.wt. of (e) a long-chain fatty acid derivative having at least one hydroxyl group in each molecule.