Interference No. 103,029
The subject matter of the interference deals with
the terpolymer of acrylonitrile, butadiene, and styrene
commonly
called ABS. KR340. In making structural shapes of ABS, such4
as toolboxes or tote bins, it is desirable to improve the
electrical
properties of the polymer so that it readily dissipates static
electricity. The antistatic properties are improved by
blending the ABS with a copolymer elastomer formed of
epichlorohydrin and ethylene oxide. This copolymer is
referred to by the abbreviation ECH/EO. KR342. The ethylene
oxide is the effective antistatic ingredient. KR342. The
amount of electrostatic dissipation (ESD) is measured with
respect to a military specification that requires a charge of
5000 volts to be dissipated in 2 seconds or less. KR343.5
4 The Kipouras record and Kipouras exhibits will be
abbreviated KR and KX-, respectively, followed by the
appropriate number. Likewise, the Barnhouse record and
exhibits will be abbreviated BR and BX-.
5 Giles also testified as to ABS-ECH/EO blends that
would dissipate a 5000 volt charge in one second. KR343;
(continued...)
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