Appeal No. 1996-3937
Application No. 08/319,702
The references of record relied upon are:
Gilles 4,025,486 May 24, 1977
Pollock et al. (Pollock) 4,368,139 Jan. 11, 1983
Van Asbroeck et al. ( Van Asbroeck) 4,670,493 June 2,
1987
Miyata 4,675,356 June 23, 1987
Matumura 5,015,679 May 14, 1991
Dunski 5,028,486 July 2, 1991
The appealed claims stand rejected under 35 U.S.C. § 103
in view of the combined teachings in the above cited
references.
We cannot sustain the stated rejection.
The subject matter on appeal is directed to a dust free
blend of compacted particles that consist essentially of a
pentaerythritol phosphite, a hindered phenolic isocyanurate, a
metal salt of a fatty acid (e.g., calcium stearate), and a
hydrotalcite, and a method of making a dust free compacted
particle from a blend of the above components by forming a
densified compact of the blend and pelletizing the densified
compact into particles. The compacted particles are said to
exhibit reduced levels of dust, and are durable during
handling. The compacted particles are useful as a
stabilizing additive blend for polymeric compositions.
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