Title:
METHOD FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2016/031849
Kind Code:
A1
Abstract:
A (meth)acrylic resin composition obtained by a method having a step for: continuously supplying a raw material solution to a tank reactor, the raw material solution necessarily containing methyl methacrylate, a chain transfer agent, and radical polymerization initiator, and optionally containing an acrylic acid alkyl ester, the mass ratio of acrylic acid alkyl ester/methyl methacrylate of the raw material solution being 0/100-20/80; performing bulk polymerization in the tank reactor at a polymerization conversion rate of 40-70 mass% to obtain a reaction product; continuously extracting this reaction product from the tank reactor; heating the reaction product to a temperature of less than 260°C at the outlet of a heat exchanger, the extracted reaction product having an average retention time of from 30 seconds to 180 seconds in the heat exchanger; and removing the volatile fraction from the heated reaction product.
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Inventors:
KITADE YASUHITO (JP)
OZAWA HIROSHI (JP)
TANAKA SHOUJI (JP)
OZAWA HIROSHI (JP)
TANAKA SHOUJI (JP)
Application Number:
PCT/JP2015/073980
Publication Date:
March 03, 2016
Filing Date:
August 26, 2015
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C08F20/14; C08F2/01; C08F2/38; F24V30/00
Domestic Patent References:
| WO2014002504A1 | 2014-01-03 | |||
| WO2014002503A1 | 2014-01-03 |
Foreign References:
| JPH03111408A | 1991-05-13 | |||
| JPH101511A | 1998-01-06 | |||
| JPS50109278A | 1975-08-28 |
Attorney, Agent or Firm:
KIKUMA, TADAYUKI (JP)
Tadayuki Kikuma (JP)
Tadayuki Kikuma (JP)
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