Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1988-12-05
1991-02-12
Jacobs, Lewis T.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
523309, 528501, 528503, C08K 336
Patent
active
049925288
ABSTRACT:
A graphite fiber reinforced polymer matrix is layed up, cured, and thermally aged at about 750.degree. F. in the presence of an inert gas. The heat treatment improves the structural integrity and alters the electrical conductivity of the materials. In the preferred embodiment PMR-15 polyimides and Celion-6000 graphite fibers are used.
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NASA TM 100922, "A Thermally Modified Polymer Matrix Composite Material with Structural Integrity to 371.degree. C.", K. J. Bowles-Sep. 1988.
Bowles Kenneth J.
Lowell Carl E.
Jacobs Lewis T.
Mackin James A.
Manning John R.
Rogers Christopher P.
Shook Gene E.
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