Process for producing impact-resistant polyacetal resin composit

Details Process for producing impact-resistant polyacetal resin composit Process for producing impact-resistant polyacetal resin composit

1993-04-01

1994-07-05

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 59, 528 60, 528 61, 528 63, 528 64, 528 67, 528 86, 525398, 525399, 525452, 525453, 525456, 524386, 524387, C08G 1800

Patent

active

053268466

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.

REFERENCES:
patent: 4929712 (1990-05-01), Sugiyama
patent: 4946906 (1990-08-01), Yano
patent: 5183860 (1993-02-01), Kashihara

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