Sekisui Plastics Co., Ltd.

Kaori Kuwagaki

Akiyoshi Kusaka

Ryosuke Harada

Generally spherical resin particles formed of a thermoplastic resin, having a sphericity of 0.90 to 1.00, a light scattering index of 0.5 to 1.0 and a linseed oil absorption of 30 to 150 mL/100 g.

Generally spherical resin particles formed of thermoplastic resin, method for producing same and use of same

A manufacturing method for porous resin microparticles comprising steps of: heating a polyester thermoplastic resin having biodegradability to a temperature of 80&#xb0; C. or higher and 200&#xb0; C. or lower in a glycol ether solvent to obtain a solution, and cooling the solution to precipitate the polyester thermoplastic resin as porous resin microparticles.

Porous resin microparticles and manufacturing method for same

Polyester-based resin particles including a polyester-based resin as a base resin, in which the base resin exhibits a plurality of endothermic peaks corresponding to crystal melting temperatures by DSC measurement, at least one of the endothermic peaks exists in each region of a low temperature side region and a high temperature side region, a maximum endothermic peak of the low temperature side region and a maximum endothermic peak of the high temperature side region exhibit a crystal melting heat amount ratio (low temperature side crystal melting heat amount/high temperature side crystal melting heat amount) in a range of 0.1 to 1.5, and the polyester-based resin particles have a volume average particle diameter of 1 to 50 &#x3bc;m.

Polyester-based resin particles, process for producing same, and use thereof

A high-recoverability resin particles having a mean particle size of 1 to 100 &#x3bc;m containing a cross-linked (meth)acrylic acid ester-based resin, wherein the high-recoverability resin particles have a recovery rate of 22% or greater, and a 30% compression strength of 1.5 to 5.0 kgf/mm.

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Nara, Japan

Kaori Kuwagaki