1 (6)
2 Mirabella, U.S. Patent 4,503,004, issued 5 March 1985
3 Mirabella is prior art under 35 U.S.C. § 102(b).
4 In general Mirabella is directed to a pyrotechnic composition having
5 improved flow properties. Col. 1, lines 14-15.
6 Mirabella describes making a pyrotechnic which turned out to be a
7 sticky or tacky mass that would not flow to a mold or cavity of a press.
8 Col. 2, lines 44-47.
9 The stickiness or tackiness is said to have been obviated by blending
10 into the tacky mass about 1 percent of fumed silica sold under the trademark
11 Cab-O-Sil. Col. 2, lines 47-51.
12 Addition of Cab-O-SilŪ is said to have eliminated the tackiness
13 problem and to have greatly increased the efficiency of the process for
14 making pyrotechnics. Col. 2, lines 52-63.
15
16 (7)
17 Habib, U.S. Patent 4,534,767, issued 13 August 1985
18 Habib relates generally to protective sealing compositions. Col. 1,
19 line 13.
20 Habib is prior art under 35 U.S.C. § 102(b).
21 Fused silica, including CAB-O-SIL, is described as having a very high
22 surface area. Col. 3, lines 2-11.
23 Various tack tests are reported by Habib. See Table A and Table B,
24 where dry tack is reported as a function of the amount of fumed silica in the
25 composition. Depending on the amount of fumed silica used, dry tack is
26 lower or higher. Col. 7, line 38 through col. 8, line 17.
27
11
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