(Meta) acrylic resin composition for millimeter wave radar covers, millimeter wave radar covers, millimeter wave radar devices, and vehicles

摘要

PROBLEM TO BE SOLVED: To provide a (meth) acrylic resin composition for a millimeter wave radar having excellent millimeter wave transmission and weather resistance. A (meth) acrylic resin composition for a millimeter-wave radar cover containing a (meth) acrylic polymer (P) containing 80 to 100% by mass of a repeating unit derived from methyl metacrate. ) The content ratio of the acrylic polymer (P) is 90% by mass or more with respect to 100% by mass of the total mass of the (meth) acrylic resin composition, and the (meth) acrylic resin composition is molded. A (meth) acrylic resin composition for a millimeter-wave radar cover, wherein the molded product has a dielectric constant of 2.80 or less at a measurement frequency of 70 to 90 GHz and a dielectric constant tangent of 0.006 or less at a measurement frequency of 70 to 90 GHz. [Selection diagram] Fig. 1