Process for the manufacture of low density bis-maleimide-carbon

Details Process for the manufacture of low density bis-maleimide-carbon Process for the manufacture of low density bis-maleimide-carbon

1978-06-30

1980-03-18

Epstein, Henry F.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156285, 156311, 428117, 428402, 428408, B32B 312

Patent

active

041938291

ABSTRACT:
A process for the preparation of composite laminate structures of glass cloth preimpregnated with polybismaleimide resin and adhered to a polybismaleimide-glass or aromatic polyamide paper honeycomb cell structure filled or partially filled with a syntactic foam consisting of a mixture of bismaleimide resin and carbon microballoons.
The carbon microballoons are prepared by pyrolyzing phenolic microballoons and subsequently bonded using a 2% bismaleimide solution. The laminate structures are cured for two hours at 477.degree. K. and are adhered to the honeycomb bismaleimide adhesive using a pressure of 700 kN/m.sup.2 pressure at 450.degree. K. The laminate composite is then post-cured for two hours at 527.degree. K. to produce a composite laminate having a density in the range from about 95 kilograms per cubic meter to 130 kilograms per cubic meter.

REFERENCES:
patent: 3030215 (1962-04-01), Veatch et al.
patent: 3475262 (1969-10-01), Sargent et al.
patent: 3505168 (1970-04-01), Dunphy et al.
patent: 3518219 (1970-06-01), Lavin et al.
patent: 3562223 (1971-02-01), Bargain et al.
patent: 3575756 (1971-04-01), Maus
patent: 3759779 (1973-09-01), Dumas
patent: 3811997 (1974-05-01), Yuan
patent: 4061812 (1977-12-01), Gilwee, Jr. et al.

Affiliated with

Also associated with

Rating

Process for the manufacture of low density bis-maleimide-carbon does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the manufacture of low density bis-maleimide-carbon , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of low density bis-maleimide-carbon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1122942