Appeal No. 95-0192
Application No. 07/914,228
The subject matter on appeal is directed to an
intermediate composition comprising a liquid organic
polyisocyanate containing dispersions of solid fire retardant
additives and polyurea particles. See specification, page 2.
This intermediate composition is useful for forming fire
resistant polymeric materials, such as fire resistant
polyurethanes. See specification, pages 1 and 13. This
appealed subject matter is adequately illustrated by claims 1
and 2, which read as follows:
1. A fire retardant composition having improved storage
stability comprising a dispersion of a solid fire retardant
additive in a liquid organic polyisocyanate which contains
dispersed polyurea particles.
2. A composition according to claim 1 wherein the solid
fire retardant additive is selected from the group consisting
of melamine, ammonium polyphosphate and guanidine carbonate.
The references of record relied upon by the examiner are:
Paige et al. (Paige) 3,666,692 May 30, 1972
Nissen et al. (Nissen) 4,469,653 Sep. 04, 1984
Gill et al. (Gill) 4,622,361 Nov. 11, 1986
Hess et al. (Hess) 4,716,182 Dec. 29, 1987
Hughes et al. (Hughes) 4,786,704 Nov. 22, 1988
2
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