CPC C08L 67/03 (2013.01) [B32B 7/12 (2013.01); B32B 27/36 (2013.01); B60R 13/08 (2013.01); C08K 5/101 (2013.01); C08L 23/06 (2013.01); B32B 2250/03 (2013.01); B32B 2307/102 (2013.01); B32B 2307/72 (2013.01); B32B 2307/732 (2013.01); C08K 2003/0887 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/2272 (2013.01); C08K 2003/2296 (2013.01); C08K 2003/3036 (2013.01); C08K 2003/3045 (2013.01); C08K 3/34 (2013.01); C08K 3/40 (2013.01); C08K 5/20 (2013.01); C08L 2207/066 (2013.01)] | 10 Claims |
1. A polyester composition comprising, based on the total weight of the polyester composition,
a first polyester and a second polyester, wherein a weight ratio of the first polyester to the second polyester is 80:20 to 20:80;
5 to 60 weight percent of a reinforcing filler; and
5 to 60 weight percent of an inorganic filler having a specific gravity of greater than 3 grams per cubic centimeter, as determined in accordance with ASTM D792, the inorganic filler comprising tungsten, iron, zinc oxide, zinc sulfide, titanium dioxide, iron oxide, or a combination thereof, wherein the inorganic filler further comprises barium sulfate; and
wherein a molded article comprising the polyester composition has a sound transmission loss of greater than 30 decibels, as determined at 1,250 Hertz according to ASTM E1050 using a molded disc with a diameter of 100 mm and a thickness of 3.2 mm.
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