Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-05-10
2011-05-10
Jagannathan, Vasu (Department: 1764)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S210000, C523S220000, C523S221000, C523S353000, C524S476000, C524S848000, C525S185000, C525S191000, C525S240000, C526S348000
Reexamination Certificate
active
07939584
ABSTRACT:
Drag reduction of hydrocarbon fluids flowing through pipelines of various lengths is improved by polyolefin drag reducer dispersions or dispersions using bi- or multi-modal particle size distributions. Drag reducers having larger particle sizes dissolve more slowly than drag reducers having smaller particle sizes. By using at least bi-modal particle size distributions drag reduction can be distributed more uniformly over the length of the pipeline where smaller sized particles dissolve sooner or earlier in the pipeline and larger sized particles dissolve later or further along the pipeline.
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Chou Lu Chien
Harris Jeffery R.
Kommareddi Nagesh S.
Mathew Thomas
Motier John F.
Baker Hughes Incorporated
Huhn Richard A
Jagannathan Vasu
Mossman Kumar & Tyler PC
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