Daikin Industries, Ltd.

Nissin Chemical Industry Co., Ltd.

Masaki Fukumori

Masahiro Miyahara

Ikuo Yamamoto

Tsukasa Aga

Ryosuke Hara

Shinichi Minami

Rumi Kawabe

Tetsuya Uehara

Masayuki Yamana

Takashi Enomoto

Hisako Nakamura

Kouji Kubota

Yasuhiro Mitta

Kensuke Mohara

Bin Zhou

Ryousuke Hara

Kanako Fukumoto

Min Zhu

Akifumi Mitake

Takuya Yoshioka

Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. The surface treatment agent is a water-based emulsion which includes: a copolymer (1) which includes a first polymer formed from first monomers, and a second polymer formed from second monomers, wherein the second polymer is polymerized in the presence of the first polymer, the first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH&#x2550;CA&#x2014;C(&#x2550;O)&#x2014;O-A(in the formula, Arepresents hydrogen, a monovalent organic group, or a halogen, and Arepresents a Cstraight-chain or branched hydrocarbon group), the first monomers do not include a halogenated olefin monomer (b), and the second monomers include the halogenated olefin monomer (b); a surfactant (2) including a nonionic surfactant; and a liquid medium (3) including water.

Surface treatment agent

Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. Additionally, provided is a copolymer which includes a first polymer formed from first monomers, and a second polymer formed from second monomers. The copolymer does not include fluorine. The second polymer is polymerized in the presence of the first polymer. The first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH=CA-C(&#x2550;O)&#x2014;O-A(in the formula, Arepresents hydrogen, a monovalent organic group, or a halogen, and Arepresents a Cstraight-chain or branched hydrocarbon group). The first monomers and the second monomers both include a halogenated olefin monomer (b).

Copolymer, and surface treatment agent

Disclosed is a fluorine-containing composition which contains a fluorine-containing polymer that has repeating units respectively derived from (A) a fluorine-containing monomer that is an alpha-chloroacrylate having a fluoroalkyl group, (B) a monomer that has a linear or branched hydrocarbon group but does not have a fluoroalkyl group, and (C) a monomer that has a cyclic hydrocarbon group but does not have a fluoroalkyl group. This fluorine-containing composition is capable of providing a base such as a fiber product with excellent water repellency, especially strong water repellency.

Fluorine-containing composition and fluorine-containing polymer

Provided is an aqueous emulsion composition which has excellent chemical stability (stability with respect to impurities) and excellent mechanical stability. Disclosed is an aqueous emulsion composition which contains: (A) a polymer that contains a fluoroalkyl group; and (B) a surfactant that contains (B1) an amidoamine surfactant having an amide group and an amino group, and (B2) a nonionic surfactant. It is preferable that the surfactant does not contain a monool having an unsaturated triple bond or an alkylene oxide addition product of a polyol.

Aqueous emulsion composition

A fluorine-containing polymer having (a) a repeating unit derived from a fluorine-containing monomer indicated by the formula CH&#x2550;C(&#x2014;X)&#x2014;C(&#x2550;O)&#x2014;Y&#x2014;Z&#x2014;Rf, (b) a repeating unit derived from a cyclic-hydrocarbon-group-containing acrylate ester monomer indicated by the formula CH&#x2550;CQ&#x2014;C(&#x2550;O)&#x2014;O-Q, and (c) a repeating unit derived from an aliphatic-hydrocarbon-group-containing acrylate ester monomer indicated by the formula CH&#x2550;CQ&#x2014;C(&#x2550;O)&#x2014;O-Q. The fluorine-containing polymer is produced by polymerizing in the presence of one or both of (d) a silicon-containing monomer and a silicon-containing chain transfer agent.

Disclosed is an aqueous liquid dispersion of water and oil repellent agent containing surfactants wherein there are contained (I) a homopolymer or copolymer of at least one polymerizable compound having a perfluoroalkyl or perfluoroalkenyl group and an acrylate, methacrylate or alpha-substituted acrylate group, or a copolymer of such a polymerizable compound with another copolymerizable compound which is copolymerizable with such a polymerizable compound, and (II) three nonionic surfactants, namely (a) a nonionic surfactant having an HLB of less than 12, (b) a nonionic surfactant having an HLB of not less than 12 and less than 17, and (c) a nonionic surfactant having an HLB of not less than 17. Such an aqueous liquid dispersion of a water and oil repellent agent containing surfactants is excellent in shelf life stability and dilution stability, and provides high water and oil repellency to an object.

Aqueous liquid dispersion of water and oil repellent agent containing nonionic surfactant

An aqueous water- and oil-repellent dispersion containing: (A) a homopolymer or copolymer containing at least one polymerizable compound having a perfluoroalkyl or perfluoroalkenyl group and an acrylate or methacrylate group, or a copolymer containing said polymerizable compound and another compound copolymerizable therewith, (B) a surfactant comprising a cationic surfactant and a nonionic surfactant comprising an alkylene oxide adduct of a higher aliphatic secondary alcohol, and (C) a high flash-point organic solvent, has durable water- and oil-repellency and excellent storage stability.

Aqueous water-and oil-repellent dispersion

Provided is an aqueous water- and oil-repellent dispersion free of an organic solvent and having durable water- and oil-repellency and excellent storage stability. The aqueous water- and oil-repellent dispersion is produced by emulsifying a perfluoroalkyl group-containing (meth)acrylate copolymer with the use of an ionic surfactant and/or a nonionic surfactant having less than 8 mol of added ethylene oxide per one hydrophobic group so that an average particle diameter is at most 100 nm and an integrating sphere turbidity is at most 20 (kaolin); adding, before the polymerization, a surfactant having at least 8 mol of added ethylene oxide per one hydrophobic group and a protective colloid; and conducting the polymerization.

Aqueous dispersion of water-  and oil-repellent and process for the production thereof

An aqueous water- and oil-repellent dispersion containing: (A) a homopolymer or copolymer containing at least one polymerizable compound having a perfluoroalkyl or perfluoroalkenyl group and an acrylate or methacrylate group, or a copolymer containing said polymerizable compound and another compound copolymerizable therewith, (B) an organic solvent which is tripropylene glycol, and (C) a surfactant, has durable water- and oil-repellency and excellent storage stability.

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Settsu, Japan

Masaki Fukumori