Inventor

YAMAGUCHI KEIZABURO

JP58 patents

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YAMAGUCHI KEIZABURO

MITSUI TOATSU CHEMICALS

Polyimide

Salicylic acid copolymers and their metal salts, production process thereof, color-developing agents comprising metal salts of the copolymers, and color-developing sheets employing the agents

Process for producing fluorobenzophenone derivatives

Color-developing compositions and their use

Process for producing 3,5-di(α-methylbenzyl)salicylic acid derivative, and use of polyvalent-metal-modified product thereof as color developer

Bis(3-aminophenoxy) aromatics and method of preparing the same

Polymaleimide from polyarylene polyamine and process for the preparation thereof

Production process of multivalent metal-modified salicylic acid/styrene resin, color-developing agent using the resin and suited for use in pressure-sensitive copying paper sheet and pressure-sensitive copying paper unit employing the agent

Heat sensitive recording sheet

Process for preparing bisphenol sulfone derivatives

Process for the preparation of 2,2&#39;-bisphenol sulfoxides

Polyimide intermediates

Bismaleimide compounds

Readily soluble, amorphous polyimide, and preparation process of same

Polyimide and process for the preparation thereof

Aromatic diamine compound, preparation process of same and polyimide prepared from same

Aromatic diamine compounds, bismaleimide compounds, thermosetting resin forming compositions therefrom, resins therefrom, and methods for their preparation

Aminobenzylamine composition

Process for preparation of 3,3&#39;- or 3,4&#39;-diamino benzophenone

Method of preventing scale adhesion to surfaces of polymerization tank with phenol-aldehyde coating

Color-developing sheet for pressure-sensitive recording sheets

Color-developing compositions and their use

Color-developing composition, aqueous suspension of the composition, and color-developing sheet produced using the suspension and suitable for use in pressure-sensitive copying paper

Odorless multi-valent metal modified products of salicyclic acid copolymers, production processes thereof, and use thereof as color-developing agents for pressure-sensitive copying paper sheets

Aqueous suspension and preparation method thereof

Aromatic amine resins

Thermoplastic aromatic polyether-pyridine and process for preparing same

Linear salicylic acid copolymers and their metal salts, production process thereof, color-developing agents comprising metal-resins of the copolymers

1,3-bis(3-aminophenoxy)-5-halogenobenzenes and process for their preparation

Process for producing 6,6&#39;-dihydroxy-3,3,3&#39;,3&#39;-tetramethyl-1,1&#39;-spirobiindane

Process for producing 1,3-bis(3-aminophenoxy)benzene

Process for preparing of 3,3&#39;-diamino diphenylsulfones

Heat sensitive recording sheet

Process for the preparation of 2,2&#39;-bis(4-substituted phenol)sulfides

Aromatic hydroxycarboxylic acid resins and their use

Polyimide resin composition

Polyimide

Heat-resistant epoxy resin composition based on 2-(4-hydroxyphenyl)-2-(4-maleimidophenyl)propane

Diaminoindane derivatives

Method for polymerizing vinyl chloride while inhibiting adhesion to the polymerization reactor with coating from poly(hydricphenol sulfide)

Thermosetting resin composition comprising an aromatic amine

Aromatic diamine intermediates useful in the preparation of polyimides

Aromatic diamine intermediates useful in the preparation of polyimide

Process for producing 3,5-di(α-methylbenzyl)salicyclic acid derivative, and use of polyvalent-metal-modified product thereof as color developer

Production process for making aromatic amine resins

Aromatic amine resins, processes for producing the same and a thermosetting resin composition containing the same

Epoxy resins containing imido rings, production process thereof and epoxy resin compositions containing the same

2,6-bis(aminophenoxy)pyridine and method of preparing the same

MITSUI CHEMICALS INC

Aromatic hydroxycarboxylic acid resins and their use

Method of preventing scale adhesion to the surfaces of a polymerization tank

Process for the preparation of 2,2'-bisphenol sulfoxides

Process for preparation of 3,3'- or 3,4'-diamino benzophenone

Process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane

Process for preparing of 3,3'-diamino diphenylsulfones

Process for the preparation of 2,2'-bis(4-substituted phenol)sulfides