Process for producing impact-resistant polyacetal resin composition
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsSatoshi Nagai, Masao Hasegawa, Hiroshi Mimura, Makoto Kobayashi
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Abstract
A process for producing an impact-resistant polyacetal resin composition, which comprises mixing with shear a polyacetal resin (A), a thermoplastic polyurethane (B), a polyhydric alcohol (C) having at least three hydroxyl groups in the molecule and at least one compound (D) selected from the group consisting of a polyisocyanate (d.sub.1) and a compound (d.sub.2) which generates a polyisocyanate under heat, while at least two components (A) and (B) are melted. An injection-molded article from the impact-resistant polyacetal resin composition, provided by the above process, exhibits superior tensile strength and elongation at break at weld portions.
Claims10
A process for producing an impact-resistant polyacetal resin composition, which comprises mixing with shear a polyacetal resin (A), a thermoplastic polyurethane (B), a polyhydric alcohol (C) selected from the group consisting of glycerine, trimethylolethane, trimethylolpropane, hexantriol, triethanolamine, diglycerine, pentaerythritol, tetraethanol, ethylenediamine, methylglucosite, aromatic diamine-tetraethanol adduct, sorbitol, dipentaerythritol, cyclodextrin, a phenoxy resin and polyvinyl alcohol, and at least one compound (D) selected from the group consisting of a polyisocyanate (d.sub.1) and a compound (d.sub.2) which generates a polyisocyanate under heat, while at least two components (A) and (B) are melted.
Dependencies are inferred from the claim text.