AQUEOUS DISPERSION OF WATER- AND OIL-REPELLENT AND PROCESS FOR THE PRODUCTION THEREOF

Title:

AQUEOUS DISPERSION OF WATER- AND OIL-REPELLENT AND PROCESS FOR THE PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2002/024828

Kind Code:

A1

Abstract:

Provided is an aqueous dispersion of a water- and oil-repellent which does not contain any organic solvent and exhibits durable water- and oil-repellency and excellent storage stability. This aqueous dispersion is produced by emulsifying a monomer component comprising one or more perfluoroalkyl -containing (meth)acrylates by the use of an ionic surfactant and/or a nonionic surfactant having fewer than eight ethylene oxide units added per hydrophobic group to thereby obtain an emulsion having a mean particle diameter of 100 nm or below and an integrating sphere turbidity of 20 degrees (kaoline) or below, adding a surfactant having eight or more ethylene oxide units added per hydrophobic group or a protective colloid to the emulsion prior to polymerization, and then subjecting the resulting mixture to polymerization.

Inventors:

AGA TSUKASA (JP)
FUKUMORI MASAKI (JP)

Application Number:

PCT/JP2001/007929

Publication Date:

March 28, 2002

Filing Date:

September 13, 2001

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
AGA TSUKASA (JP)
FUKUMORI MASAKI (JP)

International Classes:

C08F2/22; C09K3/18; D06M15/277; (IPC1-7): C09K3/18

Foreign References:

JPH0633043A	1994-02-08
JPH04272986A	1992-09-29
JPH08199111A	1996-08-06

Other References: