Title:
(Meta) A manufacturing method of an acrylic resin constituent
Document Type and Number:
Japanese Patent JP6014668
Kind Code:
B2
Abstract:
A method of producing a (meth)acrylic resin composition. The method comprises a step of continuously feeding a reaction raw material including a chain transfer agent, a radical polymerization initiator and a monomer mixture comprising 80 to 100 % by mass of methyl methacrylate and 20 to 0 % by mass of an alkyl acrylate to a tank reactor through two or more feeding ports; a step of bulk polymerizing the monomer mixture in the tank reactor until a polymerization conversion of 40 to 70 % by mass to prepare a reaction product; and a step of removing the monomer mixture from the reaction product. The perfect mixing time (¸ M [hr]) of the tank reactor, the half-life (Ä 1/2 [hr]) of the radical polymerization initiator at the temperature in the tank reactor, the stirring power (Pv [kW/m 3 ]) of the tank reactor, the mean residence time (¸ [hr]) of the reaction raw material in the tank reactor, and the concentration (I [ppm]) of the radical polymerization initiator in the reaction raw material satisfy the following relationships: ¸ M > Ä 1/2 , and P v ׸×I×Ä 1/2 < 4.
Inventors:
Ozawa Sora
Shoji Tanaka
Yasuhito Kitade
Shoji Tanaka
Yasuhito Kitade
Application Number:
JP2014522435A
Publication Date:
October 25, 2016
Filing Date:
June 28, 2013
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08F2/02; C08F220/12
Domestic Patent References:
| JP2752458B2 | ||||
| JP2009256493A | ||||
| JP9087333A | ||||
| JP8127618A | ||||
| JP7126308A | ||||
| JP7136483A |
Attorney, Agent or Firm:
Tadayuki Kikuma