Thermoplastic elastomeric internal insulation for rocket motors

Details Thermoplastic elastomeric internal insulation for rocket motors Thermoplastic elastomeric internal insulation for rocket motors

1993-04-06

1995-03-21

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

4284744, 524121, 524123, 524124, 524127, 524130, 524136, 524140, 524145, 524386, 524387, 524414, 524415, 524416, C08J 320, C08K 549, C08L 7700

Patent

active

053995996

ABSTRACT:
Thermoplastic elastomeric ablative insulation having good mechanical properties at extremely low temperatures are disclosed. The insulation is based upon a polyamide-ether resin and includes carefully selected fillers to possess good low temperature mechanical properties and still provide suitable charring and ablative insulation performance at low temperatures (-65.degree. F.). A typical insulation within the scope of the present invention includes a polyamide-ether thermoplastic elastomeric polymer resin, an inorganic phosphorus containing compound, such as ammonium polyphosphate, present in the insulation from about 5 to about 60 phr, and a polyhydric alcohol present, such as pentaerythritol, in the insulation from about 1 to about 30 phr. The insulation compositions within the scope of the present invention optionally include silicone resin present in the insulation in range from about 0 to 15 phr. Chopped fiber filler may also be present in the insulation in range from about 0 to 100 phr.

REFERENCES:
patent: 3472812 (1969-10-01), Byrne et al.
patent: 3506607 (1970-04-01), Bobear
patent: 3666707 (1972-05-01), Livingston
patent: 3723481 (1973-03-01), Bobear
patent: 3755223 (1973-08-01), Engel
patent: 4205035 (1980-05-01), Kroger et al.
patent: 4492779 (1985-01-01), Junior et al.
patent: 4786673 (1988-11-01), Morival et al.
patent: 4871795 (1989-10-01), Pawar
patent: 4878431 (1989-11-01), Herring
J. R. Flesher, "Polyether block amide: high-performance TPE," Modern Plastics, Sep. 1987.

Affiliated with

Also associated with

Rating

Thermoplastic elastomeric internal insulation for rocket motors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoplastic elastomeric internal insulation for rocket motors , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoplastic elastomeric internal insulation for rocket motors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1149323