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Sealing system and process therefor
   
Document Number
US Patent 7390845
Issued Date
June 24, 2008
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Abstract
A sealing element is formed from a desirably shaped body of a sealant material formulated from a first polymer, ethylene vinyl acetate (EVA), in a concentration of about 25 percent to about 30 percent, a calcium carbonate inert filler material in a concentration of about 25 percent to about 30 percent, a second ethylene polymer other than EVA in a concentration of about 20 to about 35 percent, and a hydrocarbon resin in a concentration of about 10 percent to about 15 percent. The sealant further comprising an epoxy resin in a concentration of about 2 to about 5 percent and an activator in a concentration of about less than one percent of the sealant. The sealant material, when positioned about a first component is overmolded with a material forming a second component. The sealant material, which is heat activated, forms a seal between the first and second components.
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Number of Claims:
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Published
June 24, 2008
Application Number
10/612,091
Filed
July 2, 2003
US Classification
523/437   524/436
Int'l Classification
C08G   59/00   (20060101)  
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATION DATA This application claims the benefit of priority of provisional U.S. Patent application Ser. No. 60/398,739, filed Jul. 26, 2002.
USPTO Field of Search
428/323   428/457   428/461   264/104   264/279   264/279.1   524/436   523/437  
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