Nippon Shokubai Co., Ltd.

Nippon Shokubai Kagaku Kogyo Co., Ltd.

Other

Elf Atochem S.a.

Yoshihiro Arita

Kiyoshi Kawamura

Yoshinori Sano

Mitsuo Kushino

Yoshikuni Mori

Kenji Minami

Nobuaki Urashima

Masuji Izubayashi

Shigeru Tanimori

Hayato Ikeda

Kazuaki Abe

Hirokazu Itoh

Tetsushi Kawamura

Kenta Kanaida

Kazuya Hata

Subhash C Narang

Satoshi Yamada

Asutosh Nigam

Susanna C Ventura

Kazumasa Kimura

Hitoshi Yano

Thierry Aubert

Tomiyasu Ueta

Norihiro Wakao

Ryuichi Ishikawa

Yoshinobu Yamamoto

Toshifumi Hatanaka

Einosuke Jodo

Dana D Field

Hayato Ideda

Apparao Satyam

Takashi Kai

The present invention provides: an ink jet recording material which displays sufficient water resistance and further, excellent definition of initial images; and a coating agent therefor to give such an ink jet recording material. A first coating agent for ink jet recording materials, according to the present invention, comprises: an aqueous polymer having a carboxyl group; and a water-soluble polymer having an oxazoline group as a crosslinking agent. A second coating agent for ink jet recording materials, according to the present invention, comprises a polymer and a crosslinking agent, wherein the polymer has both a structural unit, as formed by ring-opening polymerization of an oxazoline compound, and a carboxyl group. An ink jet recording material, according to the present invention, has on at least one face thereof a coated and cured layer of the above present invention first coating agent and/or a coated and cured layer of the above present invention second coating agent, and displays high water resistance and excellent image quality.

Coating agent for ink jet recording materials and ink jet recording material

Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh metal oxide in said desulfurization catalyst is sulfurized with hydrogen sulfide produced from sulfur-containing compounds in a feed stream. In the invention, a compound having mercapto alkylthio group: HS&mdash;C,H,&mdash;S&mdash; (in which &ldquo;m&rdquo; is an integer of 2 to 4) is added as promoter at a proportion of 10 ppm to 0.5% by weight and presulfurization is promoted at 180 to 260&deg; C.

Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter

Method for improving the yield of lighter components in heat-refining process of petroleum heavy oil, and additive used in the method. The heat-treatment in a heating unit is effected in the presence of at least one compound (I) having at least one mercapto alkylthio group: HS--C.sub.m H.sub.2m --S--, in which 'm' is an integer of 2 to 4.

Method for improving the yield of lighter components in heat-refining

There is provided an aqueous resin composition which does not cause coagulation, can be cured at low temperature, and, by this curing, forms a coating superior in mechanical strength, water resistance, solvent resistance and adhesion to various substrates. The aqueous resin composition of this invention comprises an oxazoline group-containing polymer (A), a carboxyl group-containing polymer (B), and an acidic compound-amine salt catalyst (C). The curing is carried out by a reaction between the oxazoline group-containing polymer (A) and the carboxyl group-containing polymer (B) in the presence of the acidic compound-amine salt catalyst (C).

Aqueous resin composition and curing process

This invention concerns a method for the production of an ethylene sulfide/sulfur copolymer which comprises copolymerizing ethylene sulfide with sulfur. This method permits an ethylene sulfide/sulfur copolymer as a novel copolymer.

Method for production of ethylene sulfide/sulfur copolymer and ethylene

A process for producing a modified polyaminoamide with markedly increased reactivity as an epoxy resin curing agent is disclosed. The process comprises introducing amino groups and mercapto groups into a polyaminoamide by using an aziridine compound and a thiirane compound. The modified polyaminoamide is capable of curing an epoxy resin at a low temperature and at a high rate to provide a cured epoxy resin excellent in anticorrosion and chemical resistance.

Process for producing modified polyaminoamide, modified polyaminoamide

A 2-oxazoline group-containing water-soluble polymer in which the residual amount of an oxazoline monomer has been reduced is produced. An acrylic ester is copolymerized during the polymerization reaction of an addition-polymerizable oxazoline.

Process for producing water-soluble polymer and water-soluble polymer

A reaction of the compound (A) having at least two 2-oxazoline groups with the compound (B) having at least two functional groups of one or a plural kind selected from the group consisting of an aromatic hydroxyl group, an amino group and a thiol group proceeds in a short period of time to produce a cured resin with superior mechanical strength, heat resistance and adhesion properties.

Curing composition

A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transfer, coating agent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.

Carbon black-graft polymer, method for production thereof, and use

A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon balck. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.

A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.

Growing community of inventors

Osaka, Japan

Yoshihiro Arita