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US 8,012,390 B2Granted
Elastomer composite materials in low density forms and methods
AssigneeCabot Corporation
InventorsTing Wang, Glendon A. McConnell, Meng-Jiao Wang
Life of this patent
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Abstract
A bale of elastomer composite is formed of elastomer and filler, the bale having a void volume of at least 3%. In another aspect, a container is provided, at least a portion of the container being occupied by elastomer composite pieces of elastomer and filler, wherein the occupied portion of the container has a void volume of at least 3%.
Claims10
A method of producing a bale of elastomer composite, comprising the steps of:
- mixing an elastomer latex with a filler to form an elastomer composite;
- treating the elastomer composite to form elastomer composite pieces having a water content of less than 1 weight percent, the elastomer composite pieces being in the form of short strips that are approximately 40 mm to 60 mm long;
- and forming the elastomer composite pieces into a bale having a void volume of 3% to 20%.
A method of packaging elastomer composite pieces in a container wherein at least a portion of the container is occupied by elastomer composite pieces comprising the following steps:
- mixing an elastomer latex with filler to form an elastomer composite;
- treating the elastomer composite to form elastomer composite pieces having a water content of less than 1 weight percent, the elastomer composite pieces being in the form of short strips that are approximately 40 mm to 60 mm long;
- and packaging the elastomer composite pieces in a container such that the occupied portion of the container has a void volume of 3% to 20%.
Dependencies are inferred from the claim text.