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:
Dec. 07, 2004
Filed:
Mar. 12, 2003
Applicant:
Inventors:
Assignee:
EKC Technology K.K., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09G 1/02 ; C09G 1/04 ; B24B 3/700 ;
U.S. Cl.
CPC ...
C09G 1/02 ; C09G 1/04 ; B24B 3/700 ;
Abstract
A problem to be solved is to provide a slurry that is capable of flattening an uneven film on a substrate with good precision, and that has good stability, not separating into two layers, solidifying through flocculated settling or undergoing changes in viscosity. This problem is solved by adding poly ammonium acrylates having different degrees of neutralization to one another as surfactants to a cerium oxide slurry containing cerium oxide particles, and suitably adjusting the total amount of polyacrylates added.