Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2004-04-20
2008-08-05
Griffin, Steven P. (Department: 1791)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S147000, C162S191000, C162S185000, C526S295000, C526S336000, C525S331900, C525S344000
Reexamination Certificate
active
07407561
ABSTRACT:
The present invention relates to a method for controlling pitch and stickies deposit in a pulp and papermaking process using crosslinked cationic polymers made by controlled addition of a water soluble radical initiator at reaction temperature with agitation for chain extension and crosslinking.
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Ford Philip Anson
Song Zhiqiang
Ciba Specialty Chemicals Water Treatments Ltd.
Cordray Dennis R.
Griffin Steven P.
Loggins Shiela A.
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