SLIDABLE POLYOXYMETHYLENE RESIN MOLDING MATERIAL

PURPOSE:To obtain a molding material having excellent lubricating properties and abrasion resistance and suited as a material for various sliding parts by melt-kneading a polyoxymethylene resin with an isocyanate compound, an alpha- olefin/alpha,beta-unsaturated carboxylic acid copolymer and a tert....

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Bibliographische Detailangaben
Hauptverfasser:	NIINO MASAHIKO, YOSHIMURA TOMOYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a molding material having excellent lubricating properties and abrasion resistance and suited as a material for various sliding parts by melt-kneading a polyoxymethylene resin with an isocyanate compound, an alpha- olefin/alpha,beta-unsaturated carboxylic acid copolymer and a tert. amine. CONSTITUTION:A slidable polyoxymethylene resin molding material is obtained by melt-kneading a composition comprising at least 60wt.% polyoxymethylene resin, 0.5-5.0wt.%, desirably 1.0-3.0wt.% isocyanate compound (e.g. hexamethylene diisocyanate), 0.5-30wt.%,desirably 1.0-15wt.% alpha-olefin/alpha,beta-unsaturated carboxylic acid copolymer (desirably of a mol.wt. of 10000-100000, e.g. ethylene/glycidyl methacrylate copolymer) and 0-5wt.%, desirably 0.05-3wt% tert. amine (desirably of 10-40C, e.g. behenyldimethylamine) usually at 140-240 deg.C with an extruder, etc.