Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Starting material is nonhollow planar finite length preform...
Reexamination Certificate
2011-05-03
2011-05-03
Nguyen, Khanh (Department: 1746)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Starting material is nonhollow planar finite length preform...
C264S544000, C428S474400, C428S475800, C428S476100, C428S476300
Reexamination Certificate
active
07935301
ABSTRACT:
A method of thermoforming comprises the steps of providing a film, heating the film, and forming the heated film onto a mold. The film comprises a propylene/ethylene copolymer skin layer having a melting point of from about 130° C. to about 150° C. and a interior polyamide layer having a melting point of from about 125° C. to about 230° C.
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Ayers Bobby
Hofmeister Frank M.
Miranda Nathaneal R.
Price Cindy T.
Cryovac Inc.
Gross Carson
Nguyen Khanh
Ruble Daniel B.
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