Processing of polyphthalamide monofilament

Details Processing of polyphthalamide monofilament Processing of polyphthalamide monofilament

1996-12-18

1998-09-08

Cooney, Jr., John M.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

428247, 26417211, C08F 830

Patent

active

058046593

ABSTRACT:
Monofilaments useful in papermaking fabrics which contain blended polyphthalamide and fluoropolymer and a process for making these monofilaments. These monofilaments have improved dry heat stability, knot strength, loop strength and abrasion resistance. The process reduces polymer shear in the extruder and eliminates polymer build up on the spinneret face.

REFERENCES:
patent: 3480547 (1969-11-01), Van Dyk
patent: 5207873 (1993-05-01), Sanduja et al.
patent: 5283110 (1994-02-01), Gardner et al.
patent: 5328757 (1994-07-01), Kenney et al.
patent: 5407736 (1995-04-01), McKeon
patent: 5514472 (1996-05-01), Baris et al.

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