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US 12,351,661 B2Granted
Maleimide-based copolymer and resin composition
AssigneeDenka Company Limited
InventorsMasanori Matsumoto, Kohei Nishino
Life of this patent
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Abstract
A maleimide-based copolymer containing: 40% to 65% by mass of an aromatic vinyl-based monomer unit; and 35% to 60% by mass of a maleimide-based monomer unit, in which a residual amount of an aromatic vinyl-based monomer is 200 to 2000 ppm by mass, and a residual amount of a maleimide-based monomer is 30 to 400 ppm by mass.
Claims8
A maleimide-based copolymer comprising:
- 40% to 65% by mass of an aromatic vinyl-based monomer unit;
- 35% to 60% by mass of a maleimide-based monomer unit, and
- 0.1% to 10% by mass of an unsaturated dicarboxylic acid-based monomer unit,
- wherein a residual amount of an aromatic vinyl-based monomer is 200 to 2000 ppm by mass, and a residual amount of a maleimide-based monomer is 30 to 400 ppm by mass.
1 more element
Dependencies are inferred from the claim text.