Process for remelting polyamides

Details Process for remelting polyamides Process for remelting polyamides

1983-03-22

1986-05-27

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264211, 264349, B29B 1302, B29C 4778, B29C 4792

Patent

active

045914680

ABSTRACT:
In a process for the production of a shaped article involving the remelting of a polyamide which has been subjected to a drying stage, such as that which occurs during solid phase polymerisation, the stage of conditioning the polyamide prior to remelting can be reduced or even avoided by adding a controlled amount of water to the polymer when molten or immediately prior to its remelting.

REFERENCES:
patent: 2943350 (1960-07-01), Rodenacker
patent: 3389549 (1966-01-01), David
patent: 4066725 (1978-01-01), Boettner
patent: 4301105 (1981-11-01), Coleman et al.
patent: 4381272 (1983-04-01), Ehritt

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