Thermoplastic para-polyphenylene sulfide, high temperature-resis

Details Thermoplastic para-polyphenylene sulfide, high temperature-resis Thermoplastic para-polyphenylene sulfide, high temperature-resis

1993-07-06

1995-01-10

Nold, Charles R.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 341, 428 357, 428 3692, 428 76, 60255, 60204, 2065241, F02K 900

Patent

active

053805704

ABSTRACT:
Para-polyphenylene sulfide, a non-composite, ultrahigh-temperature-resist, thermoplastic resin, is employed for the manufacture of interceptor motor cases. The thermoplastic resin, para-polyphenylene sulfide, has a combination of properties which are of particular interest in the fabrication of interceptor rocket motor cases. Para-polyphenylene sulfide in ribbonized forth is wound directly onto the required mandrel and then fused into a solid mass. The fused, solid mass has the properties which enables it to serve as both insulator and motor case material. The manufacture of a combination insulated motor case is achieved by the following method: The equipment, first, involves the fabrication of a breakout mandrel by one of several methods. The para-polyphenylene sulfide is ribbonized by extrusion and wound down on the breakout mandrel to the required thickness and fused into a solid mass by heating to its melt temperature of about 285.degree. C. The breakout mandrel is removed to release the interceptor rocket motor case which functions as both insulator and interceptor rocket motor case material.

REFERENCES:
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patent: 4147819 (1979-04-01), Hukumoto et al.
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patent: 4537951 (1985-08-01), Idel et al.
patent: 4596619 (1986-06-01), Marks
patent: 5039572 (1991-08-01), Bobsein et al.
patent: 5341638 (1994-08-01), Van Name et al.

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