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US 11,352,449 B2Granted
Graft copolymer, and thermoplastic resin composition using same
AssigneeTechno-Umg Co., Ltd.
InventorsTakashi Iwanaga, Yoshitaka Naito, Hiroyuki Atsuta, Ichiro Kamata, Hironori Matsuyama, Yuusuke Fukamachi
Life of this patent
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Abstract
A graft copolymer (B-III) includes a rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate; and at least one monomer selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III).
Claims7
A graft copolymer (B-III) comprising:
- a rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate;
- and
- at least one graft monomer component selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III),
- wherein the rubbery polymer (A-III) is more than 30% and less than 50% by mass when a total amount of the rubbery polymer (A-III) and the graft monomer component is 100% by mass,
- a volume average particle size (X) of the rubbery polymer (A-III) is 200-400 nm,
- a largest 10% frequency particle size (Y) at which a cumulative frequency from a largest value in a particle size distribution curve reaches 10% is Y≤1.4X, and
- a smallest 10% frequency particle size (Z) at which the cumulative frequency from a smallest value in the particle size distribution curve reaches 10% is Z≥0.8X, and
- wherein a rubbery polymer (A-III) is a diene/alkyl (meth)acrylate composite rubber.
5 more elements
A graft copolymer (B-III), comprising:
- a rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate;
- and
- at least one graft monomer component selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III),
- wherein the rubbery polymer (A-III) is more than 30% and less than 50% by mass when a total amount of the rubbery polymer (A-III) and the graft monomer component is 100% by mass,
- a volume average particle size (X) of the rubbery polymer (A-III) is 200-400 nm,
- a largest 10% frequency particle size (Y) at which a cumulative frequency from a largest value in a particle size distribution curve reaches 10% is Y≤1.4X, and
- a smallest 10% frequency particle size (Z) at which the cumulative frequency from a smallest value in the particle size distribution curve reaches 10% is Z≥0.8X, and
- wherein a rubbery polymer (A-III) is a polyorganosiloxane/alkyl (meth)acrylate composite rubber.
5 more elements
Dependencies are inferred from the claim text.