Appeal No. 1997-0581
Application No. 08/168,549
pending in the application. Claims 14 through 20 were
canceled subsequent to the final Office action dated November
23, 1994.
Appellants state that only claims 11, 12 and 13 do not
stand or fall with independent claim 1. See Brief, page 6.
Therefore, for purposes of this appeal, we need only consider
the propriety of the examiner’s rejections of claims 1, 11, 12
and 13 consistent with 37 CFR § 1.192(c)(7) and (c)(8)(1995).
Claims 1, 11, 12 and 13 are reproduced below:
1. A process for the production of low molecular weight
grafted polyolefins comprising;
(a) mixing, at an elevated temperature of about 160
to 300EC, in an extruder equipped with an outlet pressure
control device about 0.1 to 20 weight percent of a free
radical initiator, about 0.1 to 30 weight percent of an
ethylenically unsaturated polycarboxylic acid, anhydride,
or ester thereof, and the remainder of a polyolefin
containing at least 93 weight percent C3-C10 olefins,
wherein said elevated temperature is higher than the
atmospheric boiling point of at least one of the
components thereby producing an elevated pressure in said
extruder of at least 30 psig, and
(b) extruding the resulting molten grafted
polyolefin having a viscosity of less than 3,000 cP at
190EC.
11. The process according to Claim 1 wherein said molten
grafted polyolefin has a viscosity less than 2,000 cP at
190EC.
2
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