Claims (7)
一種橡膠改質甲基丙烯酸酯系樹脂組成物，包含：70重量%至90重量%的共聚物(A)所形成之連續相，及10重量%至30重量%的丙烯酸酯系橡膠接枝共聚物(B)的橡膠粒子所形成之分散相，以共聚物(A)的總量為100重量%計，該共聚物(A)包含2重量%至27重量%的第一苯乙烯-丙烯腈系共聚物(A1)、30重量%至75重量%的甲基丙烯酸酯系聚合物(A2)及10重量%至50重量%的第二苯乙烯-丙烯腈系共聚物(A3)；其中，第一苯乙烯-丙烯腈系共聚物(A1)包括71重量%至74重量%的苯乙烯系單體單元及26重量%至29重量%的丙烯腈系單體單元，第二苯乙烯-丙烯腈系共聚物(A3)包括60重量%至69重量%的苯乙烯系單體單元及31重量%至40重量%的丙烯腈系單體單元；該橡膠粒子之重量平均粒徑範圍為0.05μm至0.22μm、重量平均粒徑範圍為0.26μm至0.55μm，或前述二者混合而成。
A rubber modified methacrylate resin composition comprising: 70% by weight to 90% by weight of a continuous phase formed by the copolymer (A), and 10% by weight to 30% by weight of an acrylate-based rubber graft copolymerization The dispersed phase of the rubber particles of the substance (B) is from 100% by weight based on the total amount of the copolymer (A), and the copolymer (A) comprises from 2% by weight to 27% by weight of the first styrene-acrylonitrile a copolymer (A1), 30% by weight to 75% by weight of a methacrylate polymer (A2), and 10% by weight to 50% by weight of a second styrene-acrylonitrile copolymer (A3); The first styrene-acrylonitrile-based copolymer (A1) comprises 71% by weight to 74% by weight of styrene-based monomer units and 26% by weight to 29% by weight of acrylonitrile-based monomer units, and the second styrene-propylene The nitrile-based copolymer (A3) includes 60% by weight to 69% by weight of the styrene-based monomer unit and 31% by weight to 40% by weight of the acrylonitrile-based monomer unit; the rubber particles have a weight average particle diameter ranging from 0.05 μm. It is 0.22 μm, and the weight average particle diameter ranges from 0.26 μm to 0.55 μm, or a mixture of the two.
如請求項1所述的橡膠改質甲基丙烯酸酯系樹脂組成物，其中，以共聚物(A)的總量為100重量%計，包括5重量%至20重量%的第一苯乙烯-丙烯腈系共聚物(A1)、35重量%至70重量%的甲基丙烯酸酯系聚合物(A2)及12重量%至45重量%的第二苯乙烯-丙烯腈系共聚物(A3)。
The rubber-modified methacrylate-based resin composition according to claim 1, wherein the total amount of the copolymer (A) is 100% by weight, and the styrene is included in an amount of 5% by weight to 20% by weight. An acrylonitrile-based copolymer (A1), a methacrylate polymer (A2) in an amount of 35% by weight to 70% by weight, and a second styrene-acrylonitrile-based copolymer (A3) in an amount of 12% by weight to 45% by weight.
如請求項2所述的橡膠改質甲基丙烯酸酯系樹脂組成物，其中，以共聚物(A)的總量為100重量%計，包括7重量%至18重量%的第一苯乙烯-丙烯腈系共聚物(A1)、
50重量%至70重量%的甲基丙烯酸酯系聚合物(A2)及20重量%至32重量%的第二苯乙烯-丙烯腈系共聚物(A3)。
The rubber-modified methacrylate-based resin composition according to claim 2, wherein the total amount of the copolymer (A) is 100% by weight, including 7 to 18% by weight of the first styrene- Acrylonitrile copolymer (A1),
50% by weight to 70% by weight of the methacrylate polymer (A2) and 20% by weight to 32% by weight of the second styrene-acrylonitrile copolymer (A3).
如請求項1所述的橡膠改質甲基丙烯酸酯系樹脂組成物，其中，該第一苯乙烯-丙烯腈系共聚物(A1)包括72重量%至74重量%的苯乙烯系單體單元及26重量%至28重量%的丙烯腈系單體單元。
The rubber-modified methacrylate-based resin composition according to claim 1, wherein the first styrene-acrylonitrile-based copolymer (A1) comprises 72% by weight to 74% by weight of a styrene monomer unit. And 26% by weight to 28% by weight of the acrylic monomer unit.
如請求項1所述的橡膠改質甲基丙烯酸酯系樹脂組成物，其中，該第二苯乙烯-丙烯腈系共聚物(A3)包括62重量%至68重量%的苯乙烯系單體單元，及32重量%至38重量%的丙烯腈系單體單元。
The rubber-modified methacrylate resin composition according to claim 1, wherein the second styrene-acrylonitrile-based copolymer (A3) comprises 62% by weight to 68% by weight of a styrene monomer unit. And 32% by weight to 38% by weight of the acrylic monomer unit.
如請求項1所述的橡膠改質甲基丙烯酸酯系樹脂組成物，其中，以該橡膠改質甲基丙烯酸酯系樹脂組成物的總量為100重量%計，該共聚物(A)的含量範圍為72重量%至86重量%，及丙烯酸酯系橡膠接枝共聚物(B)的含量範圍為14重量%至28重量%。
The rubber-modified methacrylate-based resin composition according to claim 1, wherein the copolymer (A) is 100% by weight based on the total amount of the rubber-modified methacrylate resin composition. The content ranges from 72% by weight to 86% by weight, and the content of the acrylate-based rubber graft copolymer (B) ranges from 14% by weight to 28% by weight.
如請求項6所述的橡膠改質甲基丙烯酸酯系樹脂組成物，其中，以該橡膠改質甲基丙烯酸酯系樹脂組成物的總量為100重量%計，該共聚物(A)的含量範圍為73重量%至80重量%，及丙烯酸酯系橡膠接枝共聚物(B)的含量範圍為20重量%至27重量%。
The rubber-modified methacrylate-based resin composition according to claim 6, wherein the copolymer (A) is 100% by weight based on the total amount of the rubber-modified methacrylate resin composition. The content ranges from 73% by weight to 80% by weight, and the content of the acrylate-based rubber graft copolymer (B) ranges from 20% by weight to 27% by weight.