Process for the preparation of thermoplastic resin film
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 14, 1997
Grant Date -
N/A
app pub date -
Jul 5, 1995
filing date -
Jul 4, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for preparing a thermoplastic resin film having uniform physical and chemical properties includes extending a thermoplastic resin sheet in a longitudinal direction so that the crystallization energy of the longitudinally extended sheet is 20 J/g or more to give a longitudinally extended sheet, extending the longitudinally extended sheet in a transverse direction to give a biaxially extended film, and heat treating the biaxially extended film to give the resin film.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully