Polyamide masterbatches

Details Polyamide masterbatches Polyamide masterbatches

1981-05-20

1982-05-25

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521138, 521182, 521184, 521189, 521919, 525417, 525425, C08J 906

Patent

active

043317766

ABSTRACT:
Masterbatches useful for lightweight polyamide molding or extrusion comprise polyamide, a pore-forming agent and a fusible binder that is compatible with the polyamide. Admixture of the masterbatch and granular polyamide polymer results in a polyamide composition which can be molded or extruded into a product having increased homogeneity and expansion uniformity.

REFERENCES:
patent: 4097425 (1978-01-01), Niznik
patent: 4105601 (1978-08-01), Hunter et al.
patent: 4126590 (1978-11-01), Illy
patent: 4142029 (1979-02-01), Illy
patent: 4158724 (1979-06-01), Illy
patent: 4174432 (1979-11-01), Niznik
patent: 4183822 (1980-01-01), Collington et al.

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