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US 2026/0209502 A1Published application
Resin composition, molding material, resin molded body and film, and method for producing same
AssigneeMitsubishi Chemical Corporation
InventorGo OTANI
Life of this patent
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Abstract
A resin composition and a method for producing the same, the resin composition containing a (meth)acrylic polymer (A) that is a random copolymer and/or a homopolymer and a (meth)acrylic copolymer (B) that is a block copolymer and/or a graft copolymer.
Claims21
A resin composition comprising:
- a (meth)acrylic polymer (A) that is a random copolymer and/or a homopolymer;
- and
- a (meth)acrylic copolymer (B) that is a block copolymer and/or a graft copolymer, wherein
- the (meth)acrylic polymer (A) contains a repeating unit derived from methyl methacrylate in an amount of 50 mass % or more,
- the (meth)acrylic polymer (A) contains a (meth)acrylic polymer (A1) having a mass average molecular weight calibrated with polystyrene of more than 130,000 as determined by gel permeation chromatography (GPC) measurement,
- the (meth)acrylic copolymer (B) comprises a polymer containing a polymer (B1) and a polymer (B2) in a same molecule,
- the polymer (B1) comprises a polymer containing a unit derived from methyl methacrylate in an amount of 50 mass % or more and having a glass transition temperature of higher than 0° C., and
- the polymer (B2) comprises a polymer having a glass transition temperature of 0° C. or lower.
5 more elements
A method for producing a resin composition by mixing a (meth)acrylic polymer (A) that is a random copolymer and/or a homopolymer and
- a (meth)acrylic copolymer (B) that is a block copolymer and/or a graft copolymer, wherein
- the (meth)acrylic polymer (A) contains a repeating unit derived from methyl methacrylate in an amount of 50 mass % or more,
- the (meth)acrylic polymer (A) contains a (meth)acrylic polymer (A1) having a mass average molecular weight calibrated with polystyrene of more than 130,000 as determined by gel permeation chromatography (GPC) measurement,
- the (meth)acrylic copolymer (B) is a polymer containing a polymer (B1) and a polymer (B2) in a same molecule,
- the polymer (B1) is a polymer containing a unit derived from methyl methacrylate in an amount of 50 mass % or more and having a glass transition temperature of higher than 0° C., and
- the polymer (B2) is a polymer having a glass transition temperature of 0° C. or lower.
3 more elements
Dependencies are inferred from the claim text.