The present invention is directed to a method and apparatus for extrusion blow molding polyethylene terephthalate articles. Articles produced according to this invention may be monolayer or multilayer; they may be circumferentially or biaxially oriented; and they may be heat set....http://www.google.es/patents/US5149485?utm_source=gb-gplus-sharePatente US5149485 - Method and apparatus for extrusion blow molding polyethylene terephthalate articles
Method and apparatus for extrusion blow molding polyethylene terephthalate ...
