| HONSHU CHEMICAL INDUSTRY CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120108853 | METHOD FOR PRODUCING TRISPHENOLS AND MONOESTER-SUBSTITUTED PRODUCTS THEREOF, AND 4-ACYLARALKYLPHENOL DERIVATIVES - Trisphenols of general formula (1), which are useful as starting materials for polymer, are industrially easily produced by a method using as a starting material 4-aralkylphenol derivatives expressed by general formula (2): | 05-03-2012 |
| 20120029215 | METHOD FOR MANUFACTURING TRIMELLITIC ANHYDRIDE ARYL ESTER - Disclosed is a method for manufacturing a trimellitic anhydride aryl ester in an efficient, high-yielding manner, wherein carboxylic acid lithium salt is used as a catalyst when a carboxylic acid aryl ester and trimellitic anhydride are caused to undergo an ester exchange reaction to manufacture a trimellitic anhydride aryl ester. | 02-02-2012 |
| 20120029164 | ESTER GROUP-CONTAINING TETRACARBOXYLIC ACID DIANHYDRIDE, POLYESTER POLYIMIDE PRECURSOR, POLYESTERIMIDE, AND METHODS FOR PRODUCING SAME - Disclosed is a polyesterimide having a repeating unit expressed by the formula below, and also provides the manufacturing methods thereof: | 02-02-2012 |
| 20110172457 | TETRAKIS(ETHER-SUBSTITUTED FORMYLPHENYL) AND NEW POLYNUCLEAR POLYPHENOL DERIVED FROM THE SAME - Disclosed are tetrakis(ether-substituted formylphenyl) expressed by General Formula (1), as well as polynuclear polyphenol derived from such tetrakis(ether-substituted formylphenyl): | 07-14-2011 |
| 20110028752 | NOVEL BIS(FORMYLPHENYL) COMPOUND AND NOVEL POLYNUCLEAR POLYPHENOL COMPOUND DERIVED FROM THE SAME - A bis(formylphenyl) compound expressed by general formula (1) is manufactured by, for example, using a corresponding bis(hydroxy-formylphenyl) compound as the direct material and causing it to react with a halogenated alkoxycarbonyl hydrocarbon in the presence of a base according to a known phenylether manufacturing method. | 02-03-2011 |
| 20100099908 | TRIS(FORMYLPHENYL) AND NEW POLYNUCLEAR POLYPHENOL DERIVED THEREFROM - A novel tris(formylphenyl) according to the following general formula and polynuclear phenol derived therefrom, which are useful as a material for heat resistant materials, material for photosensitive resist compositions, epoxy resin material or hardener, developer or anti-fade agent for thermosensitive recording materials, or sterilizer, fungicide, antioxidant, etc: | 04-22-2010 |
| 20100016633 | NOVEL BIS(FORMYLPHENYL)ALKANE AND NOVEL POLYNUCLEAR PHENOL DERIVED FROM THE SAME - Manufacture a novel bis(formylphenyl)alkane according to General Formula (1), as well as a novel polynuclear phenol derived therefrom, by causing a bis(hydroxymethyl-hydroxyphenyl)alkane to react with hexamethylene tetramine in the presence of an acid and hydrolyzing the reaction product, and then using the obtained bis(hydroxy-formylphenyl)alkane as a direct material and causing this material to react with halogenated alkoxycarbonyl hydrocarbon in the presence of a base. | 01-21-2010 |
| 20090306329 | NOVEL ESTER GROUP-CONTAINING TETRACARBOXYLIC ACID DIANHYDRIDE, NOVEL POLYESTERIMIDE PRECURSOR DERIVED THEREFROM, AND POLYESTERIMIDE - Provided are a polyimide that demonstrates low coefficient of hygroscopic expansion and low water absorption coefficient when used as an insulation film, as well as an ester group-containing tetracarboxylic acid dianhydride expressed by the general formula below, and a novel polyesterimide precursor derived therefrom and polyesterimide, for use in the production of such polyimide: | 12-10-2009 |
| 20080242896 | 1,3-Bis(3-Formyl-4-Hydroxyphenyl)Adamantanes and Polynuclear Polyphenols Derived Therefrom - A new 1,3-bis(3-formyl-4-hydroxyphenyl)adamantane, which provides a material offering excellent properties such as heat resistance and mechanical strength for use as an intermediate material for adamantanebisphenol derivatives or use in photosensitive resist materials, epoxy resins and other synthetic resins, thermosensitive recording materials, and the like, can be obtained through an industrial process in an easy manner at a good yield and high purity by producing a Schiff base from a 1,3-bis(4-hydroxyphenyl)adamantane by causing it to react with a hexamethylenetetramine or other substance in the presence of an acid, and then hydrolyzing the obtained Schiff base using an acid. A new polynuclear polyphenol is also provided that may be derived from the same. | 10-02-2008 |
