Biaxial oriented polyester film and a process for preparing the same
AssigneePolyplex Corporation Limited
InventorsBidhan Krushna Mohanty, Krishna Reddy
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Abstract
The present invention relates to a biaxial oriented polyester film and process for preparing the same, the said film is having an average ellipticity of not more than 0.6, Poisson ratio of not more than 0.7 (at elongation greater than 25%) all along the width of web and residual enthalpy in the range of 12% to 20%, a continuous reduction in residual film area up to an elongation of 100%.
Claims17
A biaxially oriented polyester film having an average ellipticity of not more than 0.6, a poisson ratio not less than 0.7 (at elongation greater than 25%) all along the width of web, a residual enthalpy in the range of 12% to 20%, and a continuous reduction in the residual area until 100% elongation, whereby the film uniformly deforms in all directions parallel to the surface of the film.
Dependencies are inferred from the claim text.