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:
Jul. 17, 2001
Filed:
Sep. 13, 1999
Applicant:
Inventors:
Ilkka Renvall, Espoo, FI;
Timo Korvela, Oulu, FI;
Assignee:
Kemira Chemicals Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 3/00 ; C11D 3/395 ; C11D 7/18 ; C11D 7/54 ;
U.S. Cl.
CPC ...
C11D 3/00 ; C11D 3/395 ; C11D 7/18 ; C11D 7/54 ;
Abstract
The invention relates to a stable sodium carbonate peroxyhydrate which is suited for use together with crystalline synthetic silicate-based detergents and is coated with an alkali metal sulfate and a copolymer or terpolymer of vinyl pyrrolidone.