Appeal 1997-2575
Application 08/524,661
consisting of silanol and triorganosilyl
groups,
[c] provided that at least 60% of the terminal
groups are silanol groups;
[2] 0 to 25% triorganosilyl endblocked
polydiorganosiloxane fluid of viscosity 0.1 Pa@s
to 10 Pa@s;
[3] 17 to 65% calcium carbonate filler, where the
filler contains greater than 0.25% water by
weight;
[4] 0.01 to 2% tin catalyst;
[5] 0 to 2.0% of an epoxy-functional alkoxysilane;
and
[6] an amount of ketoximosilane of the formula:
R4b
*
R Si(ON=CR R ) 3 12
124-a-b
a
1 2 3
[a] where R , R , and R are monovalent
hydrocarbons which may be the same or
different from each other, and
[b] a is 0 or 1, and
[c] R is an alkoxy, and4
[d] b is 0 to 2, inclusive,
[e] said amount being calculated so that there
are greater than 1.3 moles ketoximosilane
per silanol [sic-hydroxyl] equivalent in
the diorganosiloxane based polymer [1] and
- 3 -
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