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US 2022/0064495 A1Published application
Protective sheet
AssigneeNitto Denko Corporation
InventorsKosuke YONEZAKI, Hakaru HORIGUCHI, Yuta SHIMAZAKI
Life of this patent
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Abstract
Provided is a Low-E glass plate protective sheet having excellent long-term reliability. A Low-E glass plate protective sheet is provided. The protective sheet has a PSA layer. The PSA layer has a chloride ion amount of 105 μg or less per gram of PSA, determined by hot water extraction.
Claims21
1-39. (canceled)
A method for producing a glass unit, the method comprising:
- a step (A) of obtaining a Low-E glass plate that comprises a glass substrate and a Low-E layer placed on the glass substrate;
- a step (B) of applying a protective sheet to a surface of the Low-E layer of the Low-E glass plate;
- an optional step (C) of subjecting the Low-E glass plate with the protective sheet applied thereon to at least one process selected from the group consisting of transportation, storage, processing, washing and handling;
- a step (D) of removing the protective sheet from the Low-E glass plate;
- and
- a step (E) of assembling a glass unit using the Low-E glass plate;
- wherein, the protective sheet has a pressure-sensitive adhesive layer, and
- the pressure-sensitive adhesive layer has a chloride ion amount of 105 μg or less per gram of pressure-sensitive adhesive, determined by hot water extraction.
5 more elements
A Low-E glass plate protective sheet having a pressure-sensitive adhesive layer, wherein
- the pressure-sensitive adhesive layer has a chloride ion amount of 105 μg or less per gram of pressure-sensitive adhesive, determined by hot water extraction.
A method for protecting a Low-E glass plate, the method comprising:
- a step (application step) of applying a protective sheet to a surface of a Low-E glass plate that has a glass substrate and a Low-E layer placed on the glass substrate, wherein
- the protective sheet has a pressure-sensitive adhesive layer, and
- the pressure-sensitive adhesive layer has a chloride ion amount of 105 μg or less per gram of pressure-sensitive adhesive, determined by hot water extraction.
Dependencies are inferred from the claim text.