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
2010-06-15
2011-11-29
Hruskoci, Peter A (Department: 1778)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C162SDIG004, C210S698000, C252S180000, C524S806000
Reexamination Certificate
active
08067507
ABSTRACT:
Materials and a method are provided whereby polymers with least 0.5 mole % of the pendant group or end group containing —Si(OR″)3(where R″ is H, an alkyl group, Na, K, or NH4) are used to control aluminosilicate scaling in an industrial process having an alkaline process stream such as a pulping mill process stream. When materials of the present invention are added to the alkaline process stream, they reduce and even completely prevent formation of aluminosilicate scale on equipment surfaces such as evaporator walls and heating surfaces. The present materials are effective at treatment concentrations that make them economically practical.
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Chen Haunn-Lin Tony
Heitner Howard I.
Spitzer Donald P.
Taylor Matthew Lee
Bell Charles E.
Cytec Technology Corp.
Galletta Elizabeth A.
Hruskoci Peter A
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