Appeal No. 1997-1682
Application No. 08/270,198
immiscibility of the free radical-generating species and the
plasticizer. Moreover, although the examiner states that
Tolliver discloses a means of preventing the migration of
plasticizers and other compounds in or out of the PVC
substrate, our view of the passages of Tolliver cited by the
examiner finds no discussion of migration of plasticizers and
other compounds into the PVC substrate. Perhaps the examiner
had in mind appellant's discussion of his discovery at page 2
of the present specification, lines 8-12. To quote from
Tolliver, "[a]nother risk, however, is that agents within the
substrate article such as plasticizers, will tend to migrate
from the substrate into the sheeting, commonly also causing
pigments or other agents in the substrate to penetrate the
sheeting as well" (column 2, lines 40-44, emphasis added).
Tolliver further discloses that "[i]n many instances, when the
plasticizer migrates into the sheeting it may tend to carry
along other agents, e.g., colorants in the substrate such as
pigments and dyes, which further impair the performance or
appearance of the sheeting" (column 3, lines 2-6, emphasis
added).
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