US 7,485,680 B2
	Process for producing rubbery polymer particle and process for producing resin composition containing the same
Ryuji Furukawa, Takasago (Japan); Masakuni Ueno, Takasago (Japan); Katsumi Yamaguchi, Takasago (Japan); Chiho Yoshimi, Takasago (Japan); and Yoshihiro Ikeda, Takasago (Japan)
Assigned to Kaneka Corporation, Osaka (Japan)
Appl. No. 10/571,068 PCT Filed Sep. 01, 2004, PCT No. PCT/JP2004/013017 § 371(c)(1), (2), (4) Date Mar. 08, 2006, PCT Pub. No. WO2005/028546, PCT Pub. Date Mar. 31, 2005.
Claims priority of application No. 2003-326711 (JP), filed on Sep. 18, 2003; and application No. 2004-063696 (JP), filed on Mar. 08, 2004.
Prior Publication US 2007/0027263 A1, Feb. 01, 2007
Int. Cl. C08F 271/00 (2006.01); C08F 279/00 (2006.01); C08L 51/00 (2006.01); C08L 51/02 (2006.01)

U.S. Cl. 524—558  [524/560; 524/562; 525/65; 525/66; 525/68; 525/282; 525/293; 525/308]

15 Claims

1. A process for producing refined rubbery polymer particles (A) comprising: bringing water (D) into contact with a mixture (C) obtained by mixing an aqueous latex of the rubbery polymer particles (A) with an organic solvent (B) exhibiting partial solubility to water; thereby forming a flocculate (F) of the rubbery polymer particles (A) containing the organic solvent (B) in an aqueous phase (E); and then separating the flocculate (F).