Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Gordon Cheng Chen0
Stephanie Caine Williams0
Swindell Allen Grimsley0
Date of Patent
April 29, 2008
0Patent Application Number
104799420
Date Filed
June 18, 2002
0Patent Primary Examiner
Patent abstract
Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a swelling clay which has a TAPPI brightness of at least 70.
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