Accession Number:

AD0878391

Title:

High Temperature Laminating Resins

Descriptive Note:

Technical rept. 15 May 1969-15 Aug 1970

Corporate Author:

HUGHES AIRCRAFT CO CULVER CITY CA

Report Date:

1970-12-15

Pagination or Media Count:

66.0

Abstract:

Nitrile-terminated polyimides were prepared by the reaction of benzophenonetetracarboxylic dianhydride, aromatic diamines and meta- orpara- minobenzonitriles. At least two other linkages were necessary per repeating unit to yield a fusible and soluble prepolymer provided the oligomerhad no more than three repeating units. Using sulfone as a solvent theseoligomers could be A- staged with terephthalonitrile N, N-dioxide to yieldcurable resins. Compressive strength, flexural strength, and modulus datawere obtained for glass cloth laminates. Synthetic techniques were exploredfor preparing acetylene-substituted polyimides.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE