Method of preparing non-composite, thermoplastic, high-temperatu

Details Method of preparing non-composite, thermoplastic, high-temperatu Method of preparing non-composite, thermoplastic, high-temperatu

1993-02-26

1994-01-11

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

156171, 264221, B29C 3376

Patent

active

052778630

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 form 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:
patent: 3141052 (1964-07-01), Labash
patent: 3716610 (1973-02-01), Goldstein
patent: 4537951 (1985-08-01), Idel
patent: 4596619 (1986-06-01), Marks
patent: 5039572 (1991-08-01), Bobsein

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