Appeal No. 95-1077
Application 07/965,647
comprises contacting reactants comprising
a) at least one sulfur source,
b) at least one dihaloaromatic compound,
c) a polar organic compound,
d) at least one lithium salt which is soluble in
said polar organic compound, and
e) water in an amount less than about 1.75 moles
water per mole of sulfur in said sulfur source to form a
reaction mixture; then subjecting said reaction mixture to
polymerization conditions sufficient to form said poly(arylene
sulfide) polymer, wherein said polymerization conditions
include polymerization temperatures and polymerization
pressures sufficient to allow reflux conditions to occur
continuously during said polymerization.
The reference relied upon by the examiner is:
Hoover et al. (Hoover) 5,110,901 May 5, 1992
The sole issue in this appeal is whether claim 12 was
properly rejected under 35 U.S.C. § 103 as being unpatentable
over Hoover. After careful consideration of claim 12 on4
appeal, the arguments presented by the appellants in the
4
In an advisory action entered March 7, 1994, claim
12 was rejected under 35 U.S.C. § 102(a) as being anticipated
by Hoover (see Paper No. 9). However, the rejection was
withdrawn. In an examiner’s answer a new ground of rejection
of claim 12 was entered under 35 U.S.C. § 103, and that
rejection is the subject of this appeal. See Paper No. 15.
3
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