Method for the manufacture of a thermoplastic molding material c

Details Method for the manufacture of a thermoplastic molding material c Method for the manufacture of a thermoplastic molding material c

1986-12-29

1988-05-24

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264171, 264211, 26421123, 264349, 425203, 425204, 524151, 525 68, 525392, 525905, B29B 784

Patent

active

047464828

ABSTRACT:
The invention relates to a method for the manufacture of molding materials containing polyphenylene ether (PPE) and to the materials obtained according to this method. Molten PPE containing at least 0.1% volatile components is degasified until it reaches a residual content of volatile components of less than 500 ppm. Subsequently, additional molten polymers and/or additives are added to this molten mass at the lowest possible temperature and both components are mixed.

REFERENCES:
patent: 3304282 (1967-02-01), Cadus et al.
patent: 3410938 (1968-11-01), Schippers
patent: 3621091 (1971-11-01), Hertz et al.
patent: 4369278 (1983-01-01), Kasahara et al.
patent: 4402902 (1983-09-01), Falk et al.
patent: 4547541 (1985-10-01), Golba, Jr.

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