Appeal No. 2001-1852
Application No. 09/172,544
THE INVENTION
The appellant claims an extrusion coating composition
comprising a propylene impact copolymer having specified
properties. Claim 1 is illustrative:
1. An extrusion coating composition comprising a propylene
impact copolymer having the following properties:
(i) an E of about 55% wt to about 60% wt,c
(ii) an F of about 10% wt to about 35% wt,c
(iii)an intrinsic viscosity ratio of from 1.1 to 2.0
(iv) a melt flow of 30 dg/min to 70 dg/min, and
(v) a Q value of less than 6.5.[1]
THE REFERENCES
Scheve et al. (Scheve) 4,916,198 Apr. 10, 1990
Spagnoli et al. (Spagnoli) 5,660,789 Aug. 26, 1997
Williams et al. (Williams) 5,820,981 Oct. 13, 1998
THE REJECTION
Claims 1, 3 and 4 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Williams in view of Scheve and Spagnoli.
OPINION
We reverse the aforementioned rejection. We need to address
only the sole independent claim, i.e., claim 1.
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