Appeal No. 2006-1392
Application No. 10/619,609
OTHER ISSUES
We observe that Greiser teaches a laminate “suitable as a
carrier web for roofing and sealing sheets comprises a
preconsolidated synthetic fiber web and preconsolidated mineral
fiber web which are bonded to each other by needling.” See
column 1, lines 48-52. Greiser teaches that “[p]referred mineral
fiber webs are glass fiber webs…” See column 1, line 66. These
“roofing and sealing sheets are usually coated with bitumen on
one or both sides, but can also have a coating made from
elastomers or plastomers,” thus meeting the claimed requirement
for one or more layers coated on a glass fiber side of the
carrier web. See column 1, lines 10-15.
The dispositive question raised is, therefore, whether
Greiser teaches or would have suggested “part of said organic
synthetic fibers penetrate through said fiberglass mat and lie
adjacent to a side of said fiberglass containing mat that is
opposite to said organic non-woven mat” recited in claim 1. On
this record, we answer this question in the affirmative.
Greiser teaches (column 2, lines 13-22):
The needling should comprise 10 to 100 stitches/cm2,
preferably between 20 and 50 stitches/cm2. This
needling is carried out in such a way that the needles
first enter the synthetic fiber web and then penetrate
through the material fiber web underneath. The depth
of a stitch naturally depends on the thickness of the
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