Appeal No. 2006-1073
Application No. 10/228,815
chloride, didecyldimethylammonium bromide, and mixtures thereof,
the fiber product being resistant to fiber length degradation
during refining.
The examiner relies upon the following references as
evidence of obviousness:
Huth et al. (Huth) 5,049,383 Sep. 17, 1991
Nicholas et al. (Nicholas) 5,462,589 Oct. 31, 1995
Schultz et al. (Schultz) 5,730,907 Mar. 24, 1998
Holbek (Canadian '564) 1,134,564 Nov. 2, 1982
(Canadian Patent)
Appellants' claimed invention is directed to a cellulose
fiber product that is resistant to biological degradation and
fiber length degradation during refining. The fiber product
contains the recited amount of a compound selected from the group
consisting of didecyldimethylammonium chloride (DDAC),
didecyldimethylammonium bromide (DDAB), and mixtures thereof.
Appealed claims 1, 3, 4/1, 5/1, 6/1 and 7/1 stand rejected
under 35 U.S.C. § 103(a) as being unpatentable over Canadian '564
in view of Huth or Schultz. Claims 2, 4/2, 5/2, 6/2 and 7/2
stand rejected under 35 U.S.C. § 103(a) as being unpatentable
over the stated combination of references further in view of
Nicholas.
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