Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Reexamination Certificate
2011-08-16
2011-08-16
Gupta, Yogendra N (Department: 1744)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
C264S165000, C264S171100, C264S173120, C264S173160, C264S173190
Reexamination Certificate
active
07998385
ABSTRACT:
A transparent multilayer stretched product is produced through a process including: providing a resin laminate including at least on layer of polyglycolic acid resin, heat-forming and cooling the resin laminate, reheating the resin laminate until the polyglycolic acid resin is crystallized to be opaque and then stretching the reheated resin laminate. The thus-obtained multilayer stretched product is excellent in gas-barrier property in addition to the transparency and is suitable as a packaging material or container.
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Web page retrieved from http://www.cem.msu.edu/˜reusch/VirtualText/polymers.htm.
Kato Ryo
Tobita Hisanori
Yamane Kazuyuki
Gupta Yogendra N
Kureha Corporation
Robitaille John P
Wenderoth , Lind & Ponack, L.L.P.
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