Toughness modifier for curable resin, and curable resin composition
AssigneeKaneka Corporation
InventorsShuji Taketani, Yoshio Furukawa
Life of this patent
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Abstract
Provided are a toughness modifier for a curable resin which has good dispersibility in a curable resin containing a thermoplastic resin as well as in a cured product formed from a curable resin composition, and also has an excellent toughness-improving effect; and a curable resin composition containing the toughness modifier. The toughness modifier for a curable resin (D) is obtained by emulsion-polymerizing 5 to 50% by mass of a vinyl monomer (B) in the presence of 50 to 95% by mass of a rubber polymer (A) latex (calculated as the rubber polymer component) using 0.5 to 15 parts by mass of a nonionic reactive surfactant (C) (relative to 100 parts by mass of a total of (A) and (B)).
Claims12
A toughness modifier for a curable resin (D),
- the toughness modifier being obtained by emulsion-polymerizing, in the presence of 50 to 95% by mass of a rubber polymer (A) latex (calculated as a rubber polymer component), 5 to 50% by mass of a vinyl monomer (B) using 0.5 to 15 parts by mass of a nonionic reactive surfactant (C) (relative to 100 parts by mass of a total of (A) and (B)).
A method of producing a toughness modifier for a curable resin (D),
- the method comprising emulsion-polymerizing, in the presence of 50 to 95% by mass of a rubber polymer (A) latex (calculated as a rubber polymer component), 5 to 50% by mass of a vinyl monomer (B) using 0.5 to 15 parts by mass of a nonionic reactive surfactant (C) (relative to 100 parts by mass of a total of (A) and (B)).
Dependencies are inferred from the claim text.