Sumitomo Chemical Company, Limited

Taketoshi Kikuchi

Naoki Inui

Takashi Sanada

Kanako Fukuda

Tamon Itahashi

Kunihito Miyake

Masahito Sekiguchi

Hideaki Awa

Atsushi Higo

Kanaku Fukuda

An electric double-layer capacitor comprising an electrode containing an activated carbon, an electrolytic solution containing an electrolyte and a separator, wherein the electrolyte is an imidazolium salt represented by the following formula (1) 

Electric double layer capacitor

An activated carbon comprising a carbonized and activated compound represented by the formula (1): (wherein, R represents a hydrocarbon group having 1 to 12 carbon atoms, said hydrocarbon group may be optionally substituted with hydroxyl group, alkyl group, alkoxy group, aryl group, aryloxy group, sulfonyl group, halogen atoms, nitro group, thioalkyl group, cyano group, carboxyl group, amino group or amide group, R' represents hydrogen atom or methyl group, and n represents an integer of 4, 6, or 8).

Electric double-layer capacitor

Provided are an organic silicon compound of the following formula (I): (wherein, Rto Rrepresent each independently alkyl, alkoxy, aryloxy, cycloalkyl, alkylcycloalkyl, aryl, dialkylamino or the like, and the aryloxy and aryl may be substituted with a substituent selected from the group consisting of alkyl, alkoxy and alkoxyalkyl.) which can be used for suppression of coloration and thermal deterioration of an organic material in molding, and an organic material composition containing the organic silicon compound and a method of producing the organic silicon compound.

Organic silicon-based compound and method of producing the same

A pentavalent phosphorous compound represented by the formula (I):

Pentavalent phosphorus compound, production and use thereof

A phosphite represented by the formula (I): ##STR1## wherein n repesents 1 or 2; A represents alkylene; B represents a direct bond or alkylene; one of Y and Z represents a hydroxyl group, alkoxy or aralkyloxy, and the other one represents a hydrogen atom or alkyl; X represents a group of formula (II): ##STR2## wherein R.sup.1 and R.sup.2 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents a hydrogen atom or an alkyl group; and R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or R.sup.4 may be combined to form a direct bond, a sulfur bond (--S--), or an unsubstituted or substituted methylene group; R.sup.5 and R.sup.6 independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.8 represents a hydrogen atom or an alkyl group; and R.sup.7 represents a hydrogen atom or an alkyl group or --CH(R8)--A--O--X; and the organic phosphorus compound is useful as a stabilizer for an organic material.

Phosphite, a process for producing the same and a use thereof

Phosphonites which are useful as a deterioration inhibitor for organic material and are represented by the following formula: ##STR1## wherein X represents a connecting group, and R.sup.A represents a phenyl group which may be optionally substituted; and a process for producing the same are provided.

Cyclic phosphonites and their use as stabilizers for organic materials

A five-coordinate phosphorous compound which is useful as an stabilizer for organic materials and represented by the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents hydrogen atom or an alkyl group; X represents a direct bond, a sulfur atom or a group represented by --CHR.sup.6 -- wherein R.sup.6 represents hydrogen atom, an alkyl group or a cycloalkyl group, and a process for producing the compound (I) are provided.

Five-coordinate phosphorous compound, process for producing the same and

Phosphites inhibitors for organic material represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 is hydrogen atom or alkyl; X is a direct bond, sulfur atom, or methylene group which may optionally be substituted with alkyl or cycloalkyl; A represents a dihydric alcohol residue; B is a direct bond or alkylene; and one of Y and Z represents an alkoxy group or an aralkyloxy group, and the other one represents hydrogen atom or an alkyl group; and a process for producing the same are provided.

Phosphites, process for producing them and their use

A phosphite stabilizer for organic material is represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 is hydrogen, alkyl, cycloalkyl, alkyl, cycloalkyl, aralkyl or phenyl; R is hydrogen or alkyl; X is a direct bond, sulfur atom or a --CHR.sup.6 group in which R.sup.6 represents hydrogen, alkyl or cycloalkyl; A is an alkylene group having 2 to 8 carbon atoms or *--COR.sup.7 -- in which R.sup.7 is a direct bond or alkyl group, and * represents the bond to the oxygen atom of the phenoxy radical; and one of Y and Z represents a hydroxyl group, an alkoxy group or an aralkoxy group and the other one represents atom or an alkyl group.

Phosphites, process for producing the same and their use

Phosphites which are useful as a deterioration inhibitor for organic material and are represented by the following formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group;

An organic phosphorous compound represented by the following formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents a hydrogen atom or an alkyl group; R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or the two R.sup.4 may be combined with each other to form a direct bond, a sulfur bond (--S--), or aN optionally substituted methylene group; R.sup.7 and R.sup.8 represent a hydrogen atom or an alkyl group, or R.sup.7 and R.sup.8 may be combined with each other to form an alkylene group; A represents an alkylene group; B represents a direct bond or an alkylene group; and one of Y and Z represents a hydroxyl group, an alkoxy group or an aralkyloxy group, and the other one represents a hydrogen atom or an alkyl group; and the organic phosphorous compound is useful as a stabilizer for an organic material.

Organic phosphorous compound, a process for producing the same and a use

Phosphites which are a deterioration inhibitors for organic material represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom, or certain hydrocarbyl radicals; X represents a direct bond, a sulfur atom or a methylene group which may optionally be substituted; Z is --A.sup.1 --CO--O--Y.sup.1 or --A.sup.2 --O--CO--Y.sup.2 wherein A.sup.1 is a direct bond or an alkylene group; Y.sup.1 is aralkyl or aryl; A.sup.2 is a residue of a dihydric alcohol; and Y.sup.2 is alkyl, aralkyl or a phenyl group, and a process for producing the same are provided.

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Osaka, Japan

Taketoshi Kikuchi