Granules and pellets for the modification of polycondensates whi

Details Granules and pellets for the modification of polycondensates whi Granules and pellets for the modification of polycondensates whi

1976-03-12

1978-02-28

Griffin, Ronald W.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 37N, 260 37NP, 260 37P, 260 40R, 264DIG56, 264DIG61, C08L 6700, C08L 7700

Patent

active

040766675

ABSTRACT:
The present invention relates to masterbatches in the form of granules or pellets, as well as the process for obtaining these.
These granules or pellets consist of:
At least 37.5% of polycondensates serving as a carrier, of which at least a part consists of the same polycondensate as that which is to be shaped, in the form of a powder of particle size at least 50 microns,
From 12.5 to 40% of a binder of melting point 70.degree. - 100.degree. C which is compatible with the polycondensate to be shaped, and
Up to 50% of at least one compound intended to modify the polycondensate to be shaped.
They are used with advantage for modifying polycondensates, particularly polyamides and polyesters, intended for spinning or moulding.

REFERENCES:
patent: 2755509 (1956-07-01), Smidth
patent: 2857624 (1958-10-01), Hanzel et al.
patent: 3032821 (1962-05-01), Booys et al.
patent: 3694402 (1972-09-01), Essam
patent: 3905937 (1975-09-01), Khanna
patent: 3923726 (1975-12-01), Benz

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