Patent ID: 7410607
Filing Date: 2008-08-12
Classification: C08L,F02K,F05D

Abstract:
1. A method of insulating a case of a rocket motor loaded with a solid propellant, comprising: providing a kneader comprising at least one housing module provided with a chamber, a plurality of kneader pins extending radially into the chamber from the at least one housing module, and a screw which is rotatable about a longitudinal axis thereof and movable along the longitudinal axis in a reciprocating motion, the screw having a peripheral surface including a plurality of screw flights arranged to collectively define a discontinuous screw thread extending along the longitudinal axis of the screw; preparing insulation from a composition comprising at least one cross-linkable polymer and carbon fibers by introducing the composition into the kneader and rotating the screw along the longitudinal axis thereof while superimposing the longitudinal reciprocating motion to the screw under substantially solvent-free conditions; curing the composition to form the insulation; and insulating a case of a rocket motor with the insulation.