The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1995
Filed:
Oct. 05, 1993
Applicant:
Inventor:
Jacqueline K Pease, Jacksonville, FL (US);
Assignee:
Betz PaperChem, Inc., Jacksonville, FL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 60 ; 162 72 ; 162 75 ; 162 76 ; 162D / ;
Abstract
A method for enhancing pulp washing efficiency is disclosed. An anionic sulfonate surfactant is added within the washing or pulping operation to enhance the removal of lignin and spent cooking chemicals from pulp.