Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate
2011-06-21
2011-06-21
O'Hern, Brent T (Department: 1783)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
C139S38300A, C156S164000, C156S194000, C156S304600, C428S107000, C428S213000, C428S364000, C429S144000, C442S135000
Reexamination Certificate
active
07964266
ABSTRACT:
A wide sheet of highly oriented ultra high molecular weight polyethylene comprising a plurality of strips of highly oriented ultra high molecular weight polyethylene partially overlapped or abutted longitudinally to define joints between adjoining strips wherein the thickness of the joint is less than about 80% of the thickness of the sum of the thicknesses of the adjoining strips that make up the joint. A continuous method for the production of such materials comprising subjecting longitudinally overlapping or abutted strips of these materials to temperatures below the melting point of the UHMWPE and pressures over 300 pli is also disclosed.
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Harding Kenneth C.
Owen Lisa
Weedon Gene C.
BAE Systems Tensylon H.P.M., Inc.
O'Hern Brent T
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