Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-10-09
2007-10-09
Aftergut, Jeff H. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S148000, C156S062200, C156S296000, C156S283000
Reexamination Certificate
active
11024104
ABSTRACT:
An acoustical and thermally absorbent chopped strand mat formed of thermoplastic bonding materials and bundles of reinforcing fibers is provided. The reinforcing fibers are preferably wet use chopped strand glass fibers (WUCS). The thermoplastic bonding materials may be any thermoplastic or thermosetting material having a melting point less than the reinforcing fiber. The chopped strand mat may be formed by partially opening the WUCS fibers and filamentizing the thermoplastic bonding materials, blending the reinforcement and thermoplastic bonding fibers, forming the reinforcement and thermoplastic bonding fibers into a sheet, and bonding the sheet. During bonding, the sheet is heated to a temperature above the melting point of the thermoplastic bonding fibers but below the temperature of the glass fibers. The melted thermoplastic bonding fibers act as a glue to hold the glass fibers in bundles. The chopped strand mat thus formed may be used as a reinforcement material in automotive applications.
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Aftergut Jeff H.
Eckert Inger H.
McNally Daniel
Milliken Margaret S.
Owens Corning Intellectual Capital LLC
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