PRODUCTION OF OIL FILTER

PURPOSE:To efficiently obtain a composite filmy oil filter by casting the monomer of a photosetting polymer compd. in the form of a thin sheet, partially irradiating light to polymerize the monomer and removing the remaining monomer. CONSTITUTION:A liq. monomer as the starting material for a photose...

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Bibliographische Detailangaben
Hauptverfasser:	HARADA KYOJI, TANIGUCHI TAKUJI
Format:	Patent
Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To efficiently obtain a composite filmy oil filter by casting the monomer of a photosetting polymer compd. in the form of a thin sheet, partially irradiating light to polymerize the monomer and removing the remaining monomer. CONSTITUTION:A liq. monomer as the starting material for a photosetting polymer compd. is partially polymerized and the obtained prepolymer is cast in the form of a sheet having optional thickness. A dust collecting screen is embedded, as required, in the casting layer and light such as UV rays is irradiated on the casting layer excluding the part on which an oil hole is to be provided. Consequently, the photosetting reaction occurs and the prepolymer is converted into a polymer which is not dissolved by an org. solvent, etc. The monomer on the part which is not irradiated with the light is removed and an oil hole is formed.