Dimensionally stable biodegradable film
AssigneeDanimer IPCo, LLC
InventorsSatyabrata Samanta, Laura Emery, Jerri DiRenzo, Adam Johnson
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Abstract
A method for improving the dimensional stability of biodegradable films. The method includes providing a poly(hydroxyalkanoate)-based blown polymer film to a nip roller, feeding the poly(hydroxyalkanoate)-based blown polymer film to an annealing roller, and heating the blown film by contact with the annealing roller for a predetermined period of time and at a temperature ranging from about 80 to about 150° C.
Claims14
A method for improving the dimensional stability of a biodegradable film, comprising providing a poly(hydroxyalkanoate)-based blown polymer film to a nip roller, feeding the poly(hydroxyalkanoate)-based blown polymer film to an annealing roller, and heating the blown film by contact with the annealing roller for a predetermined period of time ranging from about 1 second to about one minute and at a temperature ranging from about 80 to about 150° C.
(canceled)
A method for improving the dimensional stability of a biodegradable film, comprising providing a poly(hydroxyalkanoate)-based bi-axially oriented polymer film with various machine direction orientation (MDO) and various transverse-direction orientation (TDO), feeding the bi-axially orientation film to an annealing roller, and heating the bi-axially orientation film by contact with the annealing roller for a predetermined period of time ranging from about 1 second to about 1 minute and at a temperature ranging from about 80 to about 150° C.
(canceled)
Dependencies are inferred from the claim text.