Appeal No. 1998-1382
Application No. 08/330,717
a second layer adhered to the first layer
composed of a polymer alloy blend having multiple
components; and,
wherein the film having physical properties
within the range:
a> 10,000 but <30,000
b> 9 but <15
c> 40 but <80
d> 10 but <100
e< 20
wherein:
a is the flexural modulus in psi of the film
measured according to ASTM D-790;
b is the oxygen permeability in Barrers;
c is the carbon dioxide permeability in Barrers;
d is the nitrogen permeability in Barrers; and
e is the water vapor transmission rate in (g mil/100
in 2 /day).
32. A flexible, gas-permeable cell culture
container suitable for culturing cells, the
container comprising:
a first and second side wall each having edges,
the first and second side walls being sealed
together at their respective side wall edges to
provide a containment area, wherein at least the
first side wall is composed of a first layer of
polystyrene having a thickness within the range of
0.0001 inches to about 0.0010 inches the first layer
facing an interior of the container to define a cell
growth surface, and, a second layer adhered to the
first layer of a polyolefin, the second layer having
a thickness within the range of 0.004 inches to
about 0.015 inches.
34. A method for fabricating a multi-layered
film suitable for forming a container for culturing
cells comprising the steps of:
providing a polystyrene cell growth surface;
providing a polymer alloy blend having multiple
components; and,
3
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