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US 12,760,163 B2Granted
Disposal method for polyester-containing release film and manufacturing method of polyester-containing object
AssigneeNan Ya Plastics Corporation
InventorsTe-Chao Liao, Chao-Quan Wu, Ching-Yao Yuan
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Abstract
A disposal method for a polyester-containing release film including the following steps is provided: providing a release film, which includes a base material and a release layer, wherein at least a material of the base includes polyester, and providing an acid washing step or an alkali washing step to the release film for removing the release layer, and to obtain a polyester-containing solid material.
Claims7
A disposal method for a polyester-containing release film, comprising:
- providing a release film comprising a substrate and a release layer, wherein at least a material of the substrate comprises polyester;
- performing an acid washing step to the release film for removing the release layer from the release film and obtaining a first solid matter containing polyester;
- and
- performing an alkali washing step to the first solid matter for obtaining a second solid matter containing polyester.
1 more element
Dependencies are inferred from the claim text.