Daikin Industries, Ltd.

Kyocera Document Solutions Inc.

Nof Corporation

Yuuki Yamamoto

Ikuo Yamamoto

Yosuke Kishikawa

Sumi Ishihara

Takashi Nomura

Takashi Namikawa

Norimasa Uesugi

Michio Matsuda

Tetsuya Uehara

Hirotoshi Sakashita

Kei-ichi Maruyama

Masayuki Kishimoto

Asako Yoshiyama

Muneaki Iizuka

Mitsuhiro Fukushima

Daisuke Noguchi

Kei-Ichi Maruyama

A fluorine-containing polymer including a repeat unit derived from a fluorine-containing monomer (A1) and a repeat unit derived from a hydrocarbon group-bearing fluorine-free monomer (A2). The fluorine-free monomer (A2) is preferably at least one monomer selected from (A2-1) R—C(═O)—NH—R—O—R, (A2-2) CH═C(—R)—C(═O)—Y—Z(—Y—R), and (A2-3) XN(H)—R. Also disclosed is a surface treatment agent containing (A) the fluorine-containing polymer and (B) a liquid medium, as well as a method for producing the surface treatment agent and a method for producing a treated substrate.

Fluorine-containing polymer and surface treatment agent

An oil-resistant agent for paper, which contains a non-fluorine copolymer that has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group with 7-40 carbon atoms and a repeating unit formed from (b) an acrylic monomer having a hydrophilic group. The oil-resistant agent for paper also contains a liquid medium that is composed of water and/or an organic solvent, preferably of water or a mixture (aqueous medium) of water and an organic solvent. The non-fluorine copolymer preferably has a repeating unit formed from (c) a monomer having an ion donor group in addition to the repeating units formed from the monomers (a) and (b). Also disclosed is an oil-resistant paper having an oil-resistant layer including the oil-resistant agent for paper, and starch or modified starch, on a surface of the paper as well as a method of treating paper.

Oil-resistant agent for paper

Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula: (wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.

Water repellent composition

When new image data is received by a communication I/F portion, a determination portion determines whether or not a password set to image data stored in the storage portion coincides with a password set to new image data received by the reception portion. A second image forming control portion does not execute image formation based on the new image data with a first image forming control portion when the determination portion determines that a password set to image data stored in the storage portion coincides with a password set to new image data received by the communication I/F portion.

Image forming apparatus for enabling printing of confidential image data

Growing community of inventors

Osaka, Japan

Yuuki Yamamoto