Road structure – process – or apparatus – Pavement – Including bed
Reexamination Certificate
2007-04-24
2011-10-25
Addie, Raymond W (Department: 3671)
Road structure, process, or apparatus
Pavement
Including bed
C404S017000, C442S059000, C442S225000, C442S328000, C442S331000, C442S333000
Reexamination Certificate
active
08043025
ABSTRACT:
A paving mat for use in a paved surface includes a fibrous mat in the form of a paving mat. The fibrous mat includes a fibrous matrix containing a mixture of polymer fibers, first mineral fibers having a first median length, and second mineral fibers having a second median length that is different from the first median length. In another embodiment, the paving mat includes a fibrous mat including a fibrous matrix which is bonded together by a binder. In one embodiment, the binder is a mixture of different binders. The fibrous matrix includes a mixture of mineral fibers in an amount within a range of from 61 wt % to 85 wt % and polymer fibers in an amount within a range of from 15 wt % to 39 wt %. The polymer fibers have a melting point greater than 320° F. (160° C.). The mat has a stiffness in the machine direction within a range of from 65 g-cm to 110 g-cm. The mat has a load-elongation behavior such that when the mat is subject to tensile stress, the mat achieves at least 90% of its ultimate load at an elongation not greater than 5% of the specimen length in the direction of applied stress. Another embodiment of the paving mat is made with a carboxy-modified acrylic binder.
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Chen Liang
Gilbert Timothy R.
Hernandez-Torres Jesus Manuel
Huang Helen Y.
Jones, IV David R.
Addie Raymond W
Calfee Halter & Griswold LLP
Owens Corning Intellectual Capital LLC
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