Appeal No. 2003-0577
Application No. 09/194,378
(c) are typically present in the composition in amounts ranging
from 25 to 90% by weight, 10-70% by weight, and 0.1 to 15% by
weight, respectively. (Page 3, lines 18-20; page 5, lines 5-6;
page 6, lines 4-6.) Cardinal explains the characteristics of
the thermoplastic composition as follows (page 1, lines 3-18):
This invention relates to a thermoplastic
composition and its use in preparing films
demonstrating moisture vapor, oxygen and carbon
dioxide permeability, while acting as barriers to
liquids and microorganisms such as viruses and
bacteria. Such films are found in various articles
including wound coverings, transdermal patches,
operating room drapes, protective clothing, diapers,
personal hygiene products (feminine hygiene,
incontinency), waterproof and outdoor clothing
articles, food packaging such as for fresh vegetables,
fruit, cheese and meat, films used in plant growing
environments and any end-use where it is desirable to
combine “breathability” and liquid barrier properties
to liquids and microorganisms.
Films made from the inventive compositions also
demonstrate good adhesion to substrates made from
materials containing certain functional groups that
react with the “reactive groups” described
hereinafter. Such substrates include melamine.
[underscoring added.]
Unlike Cardinal, Brown teaches a protective cover for
vehicles and equipment made from conjugate fiber nonwoven fabric
having a basis weight between about 1 and 8 osy laminated with a
film, such as an ethylene-vinyl acetate copolymer, polyvinyl
chloride, polyamide, or polyolefin film. (Column 1, lines 16-17
and 40-43; column 6, lines 46-51; column 8, lines 62-65.)
According to Brown, “[t]he conjugate fibers may be in a
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