1 (4)
2 Newman, U.S. Patent 3,751,286, issued 7 August 1973
3 Newman is prior art under 35 U.S.C. § 102(b).
4 Newman relates generally to thermographic transfer sheets. Col. 1,
5 lines 4-9.
6 Newman teaches, among other things, that CAB-O-SIL can be used as
7 a filler to "reduce the tackiness" of a binder material. Col. 3, lines 7-8.
8 CAB-O-SIL is identified as having an average particle size of 0.012
9 microns. Col. 3, lines 10-11.
10 CAB-O-SIL is described as the preferred filler, but clay, titania,
11 alumina, calcium carbonate, and talc are also said to be suitable. Col. 3,
12 lines -11-13
13
14 (5)
15 Shultz, U.S. Patent 4,111,853, issued 5 September 1978
16 Shultz is prior art under 35 U.S.C. § 102(b).
17 In general Shultz relates to new and useful particulate NaAOS
18 [sodium alpha olefin sulfonate] compositions adapted for use as an
19 intermediate or concentrate in the preparation of particulate synthetic
20 detergent formulations. Col. 2, lines 59-64.
21 An optional ingredient which can be incorporated in the composition
22 is an anti-tack or crisping agent. Col. 7, lines 60-61 and 67.
23 One anti-tack agent is pyrogenic silica available commercially under
24 the trademark CAB-O-SIL EH-5. Col. 7, line 68 to col. 8, line 1.
25
10
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Last modified: September 9, 2013