Patent ID: 11958985
Assignee: NAN YA PLASTICS CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C  Y | IPC B  C

Claim 4:
5. The heat sealable polyester film according to claim 1, wherein the base layer is formed from a second polyester composition, a main component of the second polyester composition is regenerated polyethylene terephthalate, the second polyester composition includes a physically regenerated polyester resin and a chemically regenerated polyester resin, a main component of each of the physically regenerated polyester resin and the chemically regenerated polyester resin is regenerated polyethylene terephthalate, based on a total weight of the second polyester composition being 100 wt %, a content of the physically regenerated polyester resin ranges from 50 wt % to 95 wt %, a content of the chemically regenerated polyester resin ranges from 1 wt % to 40 wt %, and a total content of the physically regenerated polyester resin and the chemically regenerated polyester resin ranges from 50 wt % to 100 wt %.