Title:
高機能性重合用添加剤、及びそれを用いた塩化ビニル系シードの製造方法
Document Type and Number:
Japanese Patent JP5904345
Kind Code:
B2
Abstract:
Disclosed is a method for preparing a vinyl chloride seed, comprising adding a vinyl chloride monomer, an emulsifier and a polymerization initiator to an aqueous medium, homogenizing droplets using a homogenizer pump, and polymerizing the homogenized droplets. The method provides a more stable latex by minimizing residual monomers by performing polymerization after adding a higher aliphatic alcohol serving as a monomer absorption enhancer and then performing homogenization, and additionally, improves productivity and reduces amount of scale generated by increasing the efficiency of monomer consumption during polymerization. Further, by applying the vinyl chloride-based seed to seed emulsion polymerization of vinyl chloride resins, polymer reactivity is improved, the reaction time of the seed emulsion polymerization is effectively reduced, the sizes of small and large particles are controlled and the particle diameter of the vinyl chloride resin is thus controlled.
Inventors:
Hyun Sp Lee
Kyun Sog Yuk
Han Hong Kim
Kyun Sog Yuk
Han Hong Kim
Application Number:
JP2014525923A
Publication Date:
April 13, 2016
Filing Date:
August 06, 2012
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
C08F2/44; C08F2/22; C08F14/06
Domestic Patent References:
| JP8067705A | ||||
| JP48062880A | ||||
| JP61073714A | ||||
| JP10120708A | ||||
| JP10212304A | ||||
| JP2009068024A | ||||
| JP2004018551A |
Foreign References:
| GB1052871A | ||||
| US4029619 | ||||
| EP0306433A2 | ||||
| US20090311531 |
Attorney, Agent or Firm:
Shinya Mitsuhiro
Takashi Watanabe
Takashi Watanabe