New Japan Chemical Co., Ltd.

Mitsuko Inoue

Kazuya Matsumoto

Yohei Uchiyama

Shohei Iwasaki

Yurie Shinoda

Takayuki Maeda

Sachio Kitagawa

The present invention aims to provide a method for improving the fluidity of a crystal nucleating agent for polyolefin resins without impairing other properties, and a polyolefin resin composition containing the crystal nucleating agent with improved fluidity and having excellent properties including transparency, and a molded article thereof. Adjustment to specific characteristics can improve the fluidity of a crystal nucleating agent for polyolefin resins, and the use of such a crystal nucleating agent having specific characteristics remarkably improves the workability during molding processing and provides a polyolefin resin composition excellent in properties such as transparency, and a molded article thereof.

Crystal nucleating agent for polyolefin resin, method for producing crystal nucleating agent for polyolefin resin, and method for improving fluidity of crystal nucleating agent for polyolefin resin

Provided is a metal salt of an alicyclic dicarboxylic acid with excellent dispersibility in polyolefin resins, and excellent crystallinity improving effect that is essential as a crystal nucleating agent for polyolefin resins, regardless of processing conditions. A method is also provided for producing the metal salt of an alicyclic dicarboxylic acid; a crystal nucleating agent containing the metal salt of an alicyclic dicarboxylic acid; a crystal nucleating agent composition for polyolefin resins containing the crystal nucleating agent and a fatty acid metal salt; a polyolefin resin composition containing the crystal nucleating agent; and a polyolefin resin molded article obtained using the polyolefin resin composition. Provided is a metal salt of an alicyclic dicarboxylic acid in which the alicyclic dicarboxylic acid is an alkyl substituent-containing cyclohexane-1,2-dicarboxylic acid, and the metal salt is a calcium salt, a hydroxyaluminum salt, a disodium salt, or a dilithium salt.

Metal salt of an alicyclic dicarboxylic acid having excellent dispersibility in polyolefin resin, production method for said metal salt of an alicyclic dicarboxylic acid, crystal nucleating agent for polyolefin resin containing said metal salt of an alicyclic dicarboxylic acid, crystal nucleating agent composition containing said crystal nucleating agent, polyolefin resin composition, and polyolefin resin molded article

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Kyoto, Japan

Mitsuko Inoue