Oil repellency-imparted air-permeable filter with adhesive layer
AssigneeNitto Denko Corporation
InventorsNobuaki Maruoka, Yoshiki Ikeyama, Ryota Masuda, Asuka Onohara
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Abstract
Disclosed is an air-permeable filter with an adhesive layer. This air-permeable filter is imparted with oil repellency and includes: a porous membrane having a surface coated with an oil-repellent agent; and an adhesive layer disposed on the surface. The oil-repellent agent contains a linear fluorine-containing hydrocarbon group represented by (1) —R1C5F10CH2C4F9 or (2) —R2C6F13, where R1 and R2 are each independently an alkylene group having 1 to 12 carbon atoms or a phenylene group. This air-permeable filter is imparted with oil repellency without significantly reducing its adhesive strength to the adhesive layer.
Claims7
An air-permeable filter with an adhesive layer, the filter being imparted with oil repellency and comprising:
- a porous membrane having a surface coated with an oil-repellent agent;
- and an adhesive layer disposed on the surface, wherein
- the oil-repellent agent comprises a linear fluorine-containing hydrocarbon group represented by —R1C5F10CH2C4F9 or —R2C6F13, where R1 and R2 are each independently an alkylene group having 1 to 12 carbon atoms or a phenylene group.
Dependencies are inferred from the claim text.