Methyl methacrylic resin composition, molded article comprising the same and production of the molded article
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United States of America Patent
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Jun 13, 2000
Grant Date -
N/A
app pub date -
Aug 7, 1998
filing date -
Aug 7, 1997
priority date (Note) -
Expired
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Abstract
A methyl methacrylic resin composition comprising: (A) 30 to 60% by weight of an unsaturated monomer mixture comprising an unsaturated monomer having at least two double bonds which can effect radical polymerization, (B) 40 to 70% by weight of resin particles made of a polymer of a methyl methacrylic unsaturated monomer comprising (i) 20 to 100 parts by weight of partially cross-linked resin particles and (ii) 0 to 80 parts by weight of uncross-linked resin particles and (C) 0.1 to 5% by weight of a radical polymerization initiator, is provided. The resin composition has an excellent handling property, generates little odor, and can be easily molded. The methyl methacrylic resin composition gives a molded article which has a high transparency, a high hardness of the surface and an excellent scratch-resistance. The molded article may be preferably used as a lamp cover.
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