Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-02-22
2005-02-22
Nutter, Nathan M. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S240000, C138S118000, C138S120000, C138S128000
Reexamination Certificate
active
06858677
ABSTRACT:
A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.
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Brown Stephen John
Dobbin Christopher John Brooke
Grabow Stanley Allan
Kazakov Alexei
Johnson Kenneth H.
Nova Chemicals (International) S.A.
Nutter Nathan M.
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