Title:
アクリル樹脂粉体、樹脂組成物、アクリル樹脂粉体を含むホットメルト接着剤組成物、及びその製造方法
Document Type and Number:
Japanese Patent JP6702507
Kind Code:
B2
Abstract:
An acrylic resin powder soluble in acetone, including a multi-stage polymer (M) that includes a polymer (B) obtained by polymerizing a monomer mixture (b) containing methyl methacrylate and an alkyl (meth)acrylate ester (mb) in the presence of a polymer dispersion that contains a polymer (A) obtained by polymerizing a monomer mixture (a) containing an alkyl (meth)acrylate ester (ma), in which an alkyl group in the alkyl (meth)acrylate ester (ma) has 4 to 8 carbon atoms, an alkyl group in the alkyl (meth)acrylate ester (mb) has 4 to 8 carbon atoms, a glass transition temperature of the polymer (A) is 20°C or lower, a glass transition temperature of the polymer (B) obtained by polymerizing the monomer mixture (b) is 55°C or higher, and a mass average molecular weight of the multi-stage polymer (M) is 10,000 or more and 300,000 or less.
Inventors:
Miyai Shogo
Toru Kondo
Toru Kondo
Application Number:
JP2019520904A
Publication Date:
June 03, 2020
Filing Date:
March 25, 2019
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08J3/12; C08F265/06; C08G18/10; C08G18/48; C09J151/06; C09J175/08
Domestic Patent References:
| JP2002521511A | ||||
| JP2003128736A |
Foreign References:
| WO2018012234A1 |
Attorney, Agent or Firm:
Field Saki Satoshi
Shunsuke Fushimi
Kazunori Onami
Shunsuke Fushimi
Kazunori Onami