Title:
POLYMER PARTICLE MIXTURE AND METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/120014
Kind Code:
A1
Abstract:
This polymer particle mixture comprises: large particles (X) having a volume average particle diameter of 400 to 800 nm and each comprising a large particle core (XA) and a shell (XB); and small particles (Y) having a volume average particle diameter of 90 to 150 nm and each comprising a small particle core (YA) and a shell (YB). The large particle core (XA) comprises a polyalkyl (meth)acrylate rubber, the degree of crosslinking in the surface of the core is higher than that in the inside of the core, and the content ratio of the large particle core in each of the large particles (X) is 50 to 80% by weight. In the small particle core (YA), an inner layer (ya1) comprises a polyalkyl (meth)acrylate rubber containing a crosslinkable monomer unit having two polymerizable groups having the same structure as each other, and an outer layer (ya2) comprises a polyalkyl (meth)acrylate rubber containing a crosslinkable monomer unit having two polymerizable groups having different structures from each other.
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Inventors:
SUGANOMATA YU
Application Number:
PCT/JP2022/043375
Publication Date:
June 29, 2023
Filing Date:
November 24, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08L51/06; C08F220/26; C08F265/06; C08L33/18
Domestic Patent References:
| WO2021118063A1 | 2021-06-17 | |||
| WO2021040269A1 | 2021-03-04 | |||
| WO2021066345A1 | 2021-04-08 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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