Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2006-05-30
2006-05-30
Dye, Rena L. (Department: 1774)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S332000, C428S339000, C524S451000, C525S240000, C138SDIG010, C264S513000, C264S515000
Reexamination Certificate
active
07052754
ABSTRACT:
Polyethylene-based composition for which the standard density, measured at 23° C. according to ASTM Standard D 792, is greater than 940 kg/m3and which comprises talc in an amount of less than 1 part per 100 parts by weight of polyethylene. The composition is preferably in the form of extruded granules. It exhibits a markedly improved creep resistance. Process for the manufacture of shaped articles and articles shaped from the composition, in particular pipe couplings and pipes intended for the transportation of pressurized fluids.
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Coppens Wim
Scheelen André
Dye Rena L.
Innovene Manufacturing Belgium NV
Schneller Marina V.
Venable LLP
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