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US Patent 12065565 Noise reducing filled polyester

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
120655651
Patent Inventor Names
Carlos Pereira1
Zhaokang Hu1
Robert Russell Gallucci1
Vasudev Shankar Nilajkar1
Date of Patent
August 20, 2024
1
Patent Application Number
170494051
Date Filed
May 9, 2019
1
Patent Citations
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US Patent 8916270 Glass filled copolymer products for thin wall and high surface gloss articles
1
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US Patent 8507638 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom
1
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US Patent 8028800 Acoustic damping compositions
1
Patent Primary Examiner
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Robert C Boyle
1
CPC Code
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B32B 2307/102
1
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B32B 2307/72
1
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B32B 2307/732
1
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B60R 13/08
1
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C08K 5/101
1
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C08K 3/34
1
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C08K 3/40
1
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C08K 5/20
1
...
Patent abstract

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, preferably 60:40 to 40:60; 5 to 60 weight percent (wt %), preferably 5 to 50 wt % of a reinforcing filler; and 5 to 60 wt %, preferably 10 to 50 wt %, more preferably 20 to 50 wt % of an inorganic filler having a specific gravity of greater than 3 grams per cubic centimeter, as determined in accordance with ASTM D792, wherein a molded article comprising the polyester composition has a sound transmission loss of greater than 30 dB, preferably 35 to 50 dB, more preferably 36 to 45 dB, as determined at 1,250 Hz 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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