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:
Sep. 22, 1998
Filed:
Sep. 30, 1996
Applicant:
Inventors:
Hideaki Ishitoku, Iwakuni, JP;
Toshihiro Sugiwaki, Yamaguchi-ken, JP;
Masanobu Kawamura, Iwakuni, JP;
Tomoyuki Nakamoto, Iwakuni, JP;
Assignee:
Nippon Paper Industries Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08H / ; B01F / ;
U.S. Cl.
CPC ...
530506 ; 106657 ; 106719 ;
Abstract
A lignin composition having a content of aluminum or iron or both at 0.05 to 5 wt. % (based on the solids of the lignin solution) and a content of extracts with chlorotrifluoroethylene dimer at 0.01 to 0.4 wt. % (based on solids in lignin solution). The lignin compositions possess high surface tension and are suitable as dispersing agents for cement.