Laminated resin plate
AssigneeSumitomo Chemical Company, Limited
InventorTomohiro Maekawa
Life of this patent
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Abstract
A laminated resin plate is provided, the plate comprising a first layer of resin (A) comprising about 30-90% by weight of a methyl methacrylate unit and about 10-70% by weight of a styrene-type monomer unit; and a second layer, placed on at least one side of surfaces of the first layer, of resin (B) comprising about 50% by weight or more of a methyl methacrylate unit, wherein the second layer contains about 0.03-3 parts by weight of an ultraviolet absorber based on 100 parts by weight of resin (B). The laminated resin plate resists being deformed by water absorption and has an excellent light resistance. The laminated resin plate can be suitably used as a light-diffusing plate and the like.
Claims5
A laminated resin plate comprising:
- a first layer that comprises resin (A) comprising about 30% by weight to about 90% by weight of a methyl methacrylate unit and about 10% by weight to about 70% by weight of a styrene-type monomer unit;
- and
- a second layer that is placed on at least one side of surfaces of the first layer and comprises resin (B) comprising about 50% by weight or more of a methyl methacrylate unit, wherein the second layer contains about 0.03 part by weight to about 3 parts by weight of an ultraviolet absorber based on 100 parts by weight of resin (B).
Dependencies are inferred from the claim text.