Uncoated housing and method for manufacturing same

摘要

The present invention is an uncoated housing in which a molded product formed from a thermoplastic resin composition (D) containing 20-60% by mass of an acetone insoluble resin component (A), which contains a rubber component (a) with an average particle size of 0.05-0.3 μm and has a coefficient of linear expansion of 11×10−5-20.5×10−5, 40-80% by mass of an acetone soluble resin component (B) (here, (A)+(B)=100% by mass), and a colorant (C), with (1) the acetone soluble resin component (B) containing 6.0-45% by mass of an unsaturated nitrile monomer derived component and (2) 2-20% by mass of a component with a molecular weight of 70,000 or less by gel permeation chromatography (GPC) measurements being contained in the acetone soluble resin component (B). On the basis of JIS K7105, the L* value for this uncoated housing is 13 or less, the luster 60-120%, and the haze value 30-90%.

主权项

1. An uncoated housing using a molded article made of a thermoplastic resin composition (D) comprising:
20 to 60% by mass of an acetone insoluble resin component (A) that contains a rubber component (a) having a mass average particle size of 0.05 to 0.3 μm and has a coefficient of linear expansion of 11×10−5 to 20.5×10−5/° C.; 40 to 80% by mass of an acetone soluble resin component (B) (wherein a content of the component (A)+a content of the component (B)=100% by mass); and a coloring agent (C), wherein (1) the acetone soluble resin component (B) contains 6.0 to 45% by mass of an unsaturated nitrile monomer-derived component, (2) the acetone soluble resin component (B) contains 2 to 20% by mass of a component having a molecular weight, measured by gel permeation chromatography (GPC), of 70,000 or less, and the housing has an L* value, according to JIS K7105, of 13 or less, a gloss of 60 to 120%, and a haze value of 30 to 90%.