Nippon Paint Compnay, Ltd.

Other

Shinetsu Chemical Industries, Ltd.

Akihiro Kanakura

Masayuki Maruta

Naoya Yabuuchi

Hisaki Tanabe

Mitsuhiro Takarada

Hirotoshi Umemoto

Yoshio Okamura

Ryuzo Mizuguchi

Shinji Nakano

Yoshio Eguchi

Chikayuki Otsuka

Takahito Kishida

Hideyuki Itoh

Kenji Yamamoto

Teruaki Kuwajima

Akio Kashihara

Hiroharu Ohsugi

Yutaka Harada

Haruhiko Sato

Shinji Seo

Takashi Irie

Koichi Fukuda

Makoto Shimizu

Hiroto Yoneda

Takehiro Ojima

Koichi Nagata

Satoshi Nagahata

Curable coating composition and coating film forming method

Disclosed is a preparation method of a toner comprising steps of:

Production of toner

Process for producing toner

The present invention provides a toner which substantially excludes off set and blocking of the toner particles, and a process for preparing the toner. The toner is prepared by dispersion-polymerizing a vinyl monomer in the presence of a dispersion polymerization stabilizer, a polymerization initiator and silicone-containing organic resin microparticles in a dispersion medium which dissolves said vinyl monomer, dispersion polymerization stabilizer and polymerization initiator and which does not dissolve said silicone-containing organic resin microparticles and resulting toner particles.

Method of producing a toner comprising silicone containing organic resin

The present invention provides an improved process for producing organic particles (e.g. toner particles) having uniform charge controlling coating and excellent charge controlling effect. In the process, a dispersion comprising the organic particles (A), a specific compound (B) forming insoluble substances upon reacting with an insolubilizer (D) and a dispersing medium is prepared and then reacted with the insolubilizer (D).

Production of surface-modified organic particles

The invention concerns a novel process for the preparation of poly(N-acylethyleneimine) grafted poysiloxanes comprising sulfoesterifying all or part of alcoholic hydroxyl groups of a hydroxy containing polysiloxane and conducting, in said sulfoesterification reaction mixture, ring-opening polymerization of a 2-oxazoline compound. The present process can afford the desired poly(N-acylethyleneimine) grafted polysiloxane in a higher reaction yield. The invention also provides novel poly(N-acylethyleneimine) grafted polysiloxanes.

Poly (N-acylethyleneimine) grafted polysiloxane and its preparation

The present invention provides a process for producing toner which has very narrow particle size distribution and contains a uniformity dispersed pigment therein. The process comprises dispersion-polymerizing

Dispersion-polymerization process for producing a toner containing a

A resinous composition for coating use comprising

Resinous composition for coating use

A metallic pigment composition which comprises a metallic pigment and a phosphorus compound selected from the group consisting of a phosphite represented by the following formula (I) ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which are the same or different, represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, a halogen-substituted alkyl group having 1 to 24 carbon atoms, an aryl group, a cycloalkyl group, an alkenyl group or an alkanol group, and n is an integer of 2 to 4, and a phosphobetain represented by the following formula (II) ##STR2## wherein R.sub.4, R.sub.5, and R.sub.6 and R.sub.7, which are the same or different, represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, a halogen-substituted alkyl group having 1 to 24 carbon atoms, an aryl group, a cycloalkyl group, an alkenyl group or an alkanol group, n is the same as mentioned above.

Metallic pigment composition

The invention concerns a novel process for the preparation of poly(N-acylethyleneimine) grafted polysiloxanes comprising sulfo-esterifying all or part of alcoholic hydroxyl groups of a hydroxy containing polysiloxane and conducting, in said sulfo-esterification reaction mixture, ring-opening polymerization of a 2-oxazoline compound. The present process can afford the desired poly(N-acylethyleneimine) grafted polysiloxane in a higher reaction yield.

Poly(N-acylethyleneimine) grafted polysiloxane and its preparation

Coating resinous composition containing saturated alicyclic acid

A resinous composition for coating use comprising an amphoteric resin having an acidic resinous component and a basic component of a basic compound, and an amino-formaldehyde resin etherified with monohydric alcohol having 1 to 4 carbon atoms and/or isocyanate compound, which is characterized by the fact that the basic component of a said amphoteric resin consists of a basic compound whose titration midpoint potential in non-aqueous potentiometric titration, when incorporated into the resin, is less than 450 mV, and the basicity of the amphoteric resin is within the range of 1.0.times.10.sup.-2 to 1.0 m mol/g solid. This composition can exhibit excellent pigment dispersibility and is useful as resinous vehicle for a coating composition to be used as a top coat for automobile bodies and the like.

Resinous composition which is useful for the dispersion difficulty

Growing community of inventors

Hirakata, Japan

Akihiro Kanakura