Claims (8)
一種透明橡膠變性苯乙烯系樹脂，該透明橡膠變性苯乙烯系樹脂包含：一橡膠狀共聚物(A)所形成橡膠粒子之分散相，及一共聚物(B)所形成之連續相；該分散相中之橡膠粒子之重量平均粒徑為0.25至0.6 μm，且粒徑分佈寬幅為1.2至2.1，膨潤指數為7.5至17，粒徑分佈寬幅與膨潤指數相乘之數值為10至21；以該連續相中之共聚物(B)重量為100重量%計，該共聚物(B)包括10至49重量%之苯乙烯系單體單元、50至80重量%之(甲基)丙烯酸酯系單體單元，及1至10重量%之丙烯腈系單體單元。A transparent rubber-modified styrene-based resin comprising: a dispersed phase of rubber particles formed by a rubbery copolymer (A), and a continuous phase formed by a copolymer (B); The rubber particles in the phase have a weight average particle diameter of 0.25 to 0.6 μm, a particle size distribution width of 1.2 to 2.1, a swelling index of 7.5 to 17, and a particle size distribution width multiplied by a swelling index of 10 to 21 The copolymer (B) comprises 10 to 49% by weight of styrene monomer units and 50 to 80% by weight of (meth)acrylic acid based on 100% by weight of the copolymer (B) in the continuous phase. An ester monomer unit, and 1 to 10% by weight of an acrylic monomer unit.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，該透明橡膠變性苯乙烯系樹脂包含5至25重量%之分散相及75至95重量%之連續相。The transparent rubber-modified styrene-based resin according to claim 1, wherein the transparent rubber-modified styrene-based resin contains 5 to 25% by weight of a dispersed phase and 75 to 95% by weight of a continuous phase.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，該橡膠粒子之重量平均粒徑為0.3至0.5μm。The transparent rubber-modified styrene-based resin according to claim 1, wherein the rubber particles have a weight average particle diameter of 0.3 to 0.5 μm.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，該橡膠粒子的膨潤指數範圍為8至15。The transparent rubber-modified styrene-based resin according to claim 1, wherein the rubber particles have a swelling index ranging from 8 to 15.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，橡膠粒子之粒徑分佈寬幅為1.3至2.0。The transparent rubber-modified styrene-based resin according to claim 1, wherein the rubber particles have a particle size distribution of from 1.3 to 2.0.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，橡膠粒子之粒徑分佈寬幅為1.3至1.8。The transparent rubber-modified styrene-based resin according to claim 1, wherein the rubber particles have a particle size distribution of from 1.3 to 1.8.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，該橡膠狀共聚物為嵌段共聚物，且苯乙烯與丁二烯之重
量比率為10至50/50至90。
The transparent rubber-modified styrene resin according to claim 1, wherein the rubbery copolymer is a block copolymer, and the weight of styrene and butadiene is
The ratio is from 10 to 50/50 to 90.
如請求項1所述之透明橡膠變性苯乙烯系樹脂，其中，該共聚物(B)與該橡膠狀共聚合物(A)之屈折率差小於0.005。The transparent rubber-modified styrene-based resin according to claim 1, wherein a difference in yield of the copolymer (B) and the rubber-like copolymer (A) is less than 0.005.