Utility pole of thermoplastic composite material
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United States of America Patent
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Nov 9, 2010
Grant Date -
Dec 31, 2009
app pub date -
Oct 7, 2005
filing date -
Oct 7, 2005
priority date (Note) -
Expired
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Abstract
A utility pole includes a thermoplastic composite material including: (a) at least one olefin polymer; and (b) at least one reinforcing fiber material embedded in the at least one olefin polymer, the thermoplastic composite material having a specific tensile strength higher than or equal to 15 MPa/(gr/cm.sup.3), preferably 20 MPa/(gr/cm.sup.3) to 200 MPa/(gr/cm.sup.3), and more preferably 30 MPa/(gr/cm.sup.3) to 150 MPa/(gr/cm.sup.3) and a specific tensile modulus higher than or equal to 2000 MPa/(gr/cm.sup.3), preferably 2500 MPa/(gr/cm.sup.3) to 20000 MPa/(gr/cm.sup.3), and more preferably 3000 MPa/(gr/cm.sup.3) to 15000 MPa/(gr/cm.sup.3).
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