Cure shrink-resistant missile motor cases

Details Cure shrink-resistant missile motor cases Cure shrink-resistant missile motor cases

1984-07-05

1985-05-07

Griffin, Ronald W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

149 2, 523138, 523180, 523427, F42B 100, C09B 506, C06B 4510, C08K 515

Patent

active

045159122

ABSTRACT:
Cure shrink-resistant missile motor cases are disclosed along with their method for construction. These cases comprise a matrix resin composition which includes a bisspiroortho carbonate as a fourth component, a curing agent of o-phenylenediamine boron trifluoride etherate as a third component, butanediol diglycidyl ether as a second component, and equal parts by weight of diglycidyl ether of bisphenol A and epoxidized dimer of oleic acid as a second component and additionally, they comprise, in combination therewith, a high strength fiber reinforcement material selected from the group consisting of fibers of glass, graphite, and poly-p-ethylene terephthalamide (Kevlar). The specific bisspiroortho carbonate which achieves an expansion of the matrix resin on polymerization or curing is 3,9-bis(5'-norbornene-2'-yl)-1,5,7,11-tetraoxaspiro [5.5]undecane. The expansion on curing prevents or decreases the inherent stress build-up in a fiber coated and filament wound composite motor case which is normally encountered when a standard matrix resin shrinks on polymerization or curing. A typical, standard resin includes the first two components and TONOX 60/40 which is a mixture comprised of 65% 4,4'-diaminodiphenylmethane, 10% triamines, and 25% polyamines.

REFERENCES:
patent: 3882784 (1975-05-01), Nauflett et al.
patent: 3947523 (1976-03-01), Schaffling
patent: 4304185 (1981-12-01), Sayles
patent: 4441942 (1984-04-01), Sayles
Chem. Abstr. 67, 54117v (1967).
Chem. Abstr. 63, 11732h (1965).
Chem. Abstr. 65, 4052g (1966).
Chem. Abstr. 72, 56094n (1970).
Bodenbenner, K., Justus Liebig Ann. Chem., 623, 183 (1959).
Bailey, W. J. et al., Journal of Poly. Sc:Poly. Chem. Ed., vol. 14, pp. 1-1741, (1976).

Affiliated with

Also associated with

Rating

Cure shrink-resistant missile motor cases does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cure shrink-resistant missile motor cases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cure shrink-resistant missile motor cases will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1800792