Appeal No. 1996-0575
Application No. 08/219,551
(ii) selecting a second resin having a glass transition temperature (T ) less than
g
+20EC and a melt viscosity of 0.1 to 7 poise when measured at 180EC and at a sheer rate
of 10,000 Hz, wherein at least one of said first and second resins is thermosettable,
(iii) dispersing a pigment in the first resin to form a pigmented first resin, and
(iv) combining the pigmented first resin and the second resin in proportions such
that the glass transition temperature (T ) of the combined mixture of resins is greater than -
g
30EC and less than +60EC, and such that the combined mixture of resins has a melt
viscosity of about 0.1 to 12 poise when measured at 180EC and at a shear rate of 10,000
Hz to thereby form said solventless paint composition.
The references relied upon by the examiner are:
Grenfell 3,917,123 Nov. 4, 1975
Wallace 4,028,458 June 7, 1977
Pettit, Jr. (Pettit) 4,988,767 Jan. 29, 1991
Ground of Rejection
Claims 5-7, 9-11, 13-15, 17-48, and 50-69 stand rejected under 35 U.S.C. § 103.
As evidence of obviousness, the examiner relies upon Pettit, Grenfell and Wallace.
We reverse.
BACKGROUND
The applicants' invention, as described at page 3 of the specification, is directed to
a solventless coating composition which can be applied as a hot melt and which avoids or
at least ameliorates the disadvantages of coatings of the prior art.
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