公开(公告)号：AU2015208775A1

公开(公告)日：2016-07-07

申请号：AU2015208775

申请日：2015-01-22

Applicant: STORA ENSO OYJ

Inventor： RASANEN JARI ,  KYLLIAINEN OUTI ,  NEVALAINEN KIMMO ,  RIBU VILLE ,  ROSLING ALI ,  KHAJEHEIAN MOHAMMAD ,  LINDSTROM ELLA

IPC: C08J7/18 ,  B29C35/08 ,  B29C71/04 ,  B32B27/10 ,  B65D65/38 ,  C08K5/00

Abstract: The invention relates to use of polylactide (PLA) as an extruded polymer coating on paper or board intended for the production of containers and packages, which are heated in a stove or microwave oven. According to the invention a polyfunctional cross-linking agent, such as trialkyl isocyanureate (TAIC), is blended with PLA, and the extruded coating layer is subjected to cross-linking electron beam (EB) radiation. PLA may be used as such or blended with another biodegradable polyester such as polybutylene succinate (PBS). EB radiation has been found to improve adhesion of the coating to the paper or board substrate, heat-sealability of the coating, and heat- resistance of the finished containers and packages.