Sumitomo Chemical Company, Limited

Hideaki Awa

Hajime Shinomiya

Masato Arai

Kenji Kimura

Taketoshi Kikuchi

Kunihito Miyake

Kazuhiro Kitamura

Atsushi Higo

A method for producing a granular composition including the steps of: stirring and granulating a mixture containing not less than 3 parts by weight and not more than 80 parts by weight of a phenol compound represented by the formula (1):  wherein Ris an alkyl group having 1 to 8 carbon atoms, X is an n-valent alcohol residue having 1 to 18 carbon atoms optionally containing a heteroatom, a cyclic group, or a heteroatom and a cyclic group, and n is an integer of 1 to 4, and not less than 20 parts by weight and not more than 50 parts by weight of a binder to obtain a granular agglomerate; and cracking the granular agglomerate at a temperature equal to or lower than the melting point of the binder and equal to or higher than the temperature which is 10&#xb0; C. lower than the melting point, through a cracking machine equipped with a separation mechanism capable of recovering a granule having a particle size of not more than 5 mm, and a cracking mechanism, to obtain a granule.

Method for producing granular composition

A method for producing a granular composition including the steps of: stirring and granulating a mixture containing not less than 3 parts by weight and not more than 80 parts by weight of a phenol compound represented by the formula (1): 

An amorphous compound of the formula (1):  wherein the temperature showing an endothermic peak by differential scanning calorimetry (DSC) is 40 to 80&#xb0; C. and the solution rate into n-hexane at 25&#xb0; C. in the following test system is 1.5 mg/sec or more. &#x3c;Test System Regarding Solution Rate&#x3e; At 25&#xb0; C., 1 g of a specimen is charged into a vessel containing 50 g of n-hexane (capacity: 100 ml, outer diameter: 55 mm, height: 70 mm), a 38 mm diameter fan type stirring blade is rotated at a revolution of 100 rpm, and the time until dissolution of the specimen is measured.

Amorphous compound and production method thereof

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 method for producing a polyolefin composition, which comprises melt-kneading a particulate composition (A) containing a compound represented by formula (1): wherein Rrepresents an alkyl group having 1 to 8 carbon atoms, X represents an n-hydric alcohol residue having 1 to 18 carbon atoms which may include a heteroatom and/or a cyclic group, and n is the integer 2 or 4, and a metal soap, and a particulate polyolefin (B), wherein the ratio (a/b) of the average particle diameter (a) of the particulate composition (A) and the an average particle diameter (b) of the particulate polyolefin (B) is adjusted to 3/1 to 1/3, and wherein average particle diameter means the central cumulative value determined from a weight-based particle diameter cumulative distribution for residue on a sieve measured in accordance with JIS K 0069.

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Ibaraki, Japan

Hideaki Awa