Method for producing polyamide masterbatch

Details Method for producing polyamide masterbatch Method for producing polyamide masterbatch

2011-06-14

2011-06-14

Cain, Edward J (Department: 1762)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S210000

Reexamination Certificate

active

07960451

ABSTRACT:
A polyamide masterbatch free from metal copper deposition and metal corrosion in an extruder or a molding machine, deterioration in mechanical physical properties of the product, and a color change of appearance due to water absorption and having improved heat aging resistance is produced by mixing, by melt kneading, a) 100 parts by weight of a polyamide having a water content of from 0.05 to 2.0 wt. %, b) from 0.1 to 10 parts by weight of an organic compound having at least one amide group, c) from 0.1 to 5 parts by weight of a copper compound having a maximum particle size of 50 μm or less, and d) from 1 to 50 parts by weight of a halogen compound (with the proviso that a copper halide is excluded) having a maximum particle size of 50 μm or less.

REFERENCES:
patent: 5686513 (1997-11-01), Liehr
patent: 50-148461 (1975-11-01), None
patent: 7-18176 (1995-01-01), None
patent: 2000-154472 (2000-06-01), None
patent: 2001-186199 (2000-07-01), None
patent: 2004-211083 (2004-07-01), None
English language abstract of JP 2001-186199.
English language Abstract of JP 50-148461.
English language Abstract of JP 2004-211083.
English language Abstract of JP 7-18176.
English language Abstract of JP 2000-154472.

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