Silicone-cork ablative material

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Reexamination Certificate

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Details

C521S154000, C521S050000, C523S179000, C428S447000, C524S588000

Reexamination Certificate

active

06933334

ABSTRACT:
In accordance with the present invention, a material for use in a thermal protection system contains a silicone resin binder, a silicone catalyst, ground cork, glass ecospheres, and a silicone solvent. In a preferred embodiment, the material consists of from 65.3 wt % to 72.3 wt % silicone resin, from 6.5 wt % to 7.25 wt % silicone catalyst, from 7.22 wt % to 7.98 wt % ground cork, from 8.36 wt % to 9.24 wt % glass ecospheres, and the balance silicone solvent.

REFERENCES:
patent: 4031059 (1977-06-01), Strauss
patent: 4837250 (1989-06-01), Headrick et al.
patent: 5307992 (1994-05-01), Hall et al.
patent: 6627697 (2003-09-01), Barney et al.

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