Appeal No. 95-4091
Application No. 08/106,742
remaining in the application. Claims 1 through 5 and 8
through 9 have been canceled.
THE INVENTION
Appellant’s invention is directed to a method of
preparing a prelaminate for a safety glazing containing a
thermoplast sandwiched between layers of glass. Each side of
the thermoplast has a different surface pattern. One side has
a regular roughness pattern. The other side has a random
roughness pattern. The required process steps of the claimed
subject matter, air removal and heat, result in a partial
transfer of the regular roughness pattern to the other side of
the interlayer having a random roughness pattern. The
prelaminate formed is capable of transmitting at least 85% of
light incident thereon.
THE CLAIMS
Claim 6 is illustrative of appellant’s invention and is
reproduced below.
6. In the method of preparing a prelaminate for a safety
glazing by deairing the interface with glass on each rough-
surfaced side of a thermoplastic interlayer and heating the
interlayer and glass to collapse the rough surfaces, the
2
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Last modified: November 3, 2007