Oriented Film
Oriented films are formed by stretching a thermoplastic film above its orientation temperature and then set by cooling or heating. Orientation improves the mechanical properties of the film, such as shrink tension and orientation release stress. Both of these properties may be measured according to ASTM D 2838 69 (reapproved 1975). Generally, the orientation temperature is above room temperature and below the melting point of the thermoplastic material. When stretching is applied in one direction, uniaxial orientation results. When stretching is applied in two directions, biaxial orientation results. (Kendig and Sobataka, US Patent 7,569,276, 8/4/2009)
Recent US Patents
To go to the text version of the patent, click on US Patent Number Search and enter the patent number in the search box. 8/4/2009 7,569,276 Thermoformable polyester-containing laminates
Recent Journal Articles
To get to the abstract or article, copy the citation and paste it into favorite search engine (ex. Google). The date is the date the entry was found.
Review Articles
To get to the abstract and the article, open up your internet search engine and copy the title to the search box. Once on the Journal's website, find the year and issue. Then scroll to the article. The date is the date of the entry made on this page.
Editor's Notes
As the literature is reviewed, and items of interest concerning this topic are found. These may be added in an abbreviated form with the reference. Readers and contributors are invited to add their own notes. Contributors may add them directly and other readers can simply send their notes to the editor, Roger Corneliussen at rcorneliussen@4spe.org. He may edit and add them to this page at his discretion.