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:
Aug. 19, 2003
Filed:
Mar. 31, 2000
Applicant:
Inventors:
Thomas J. Blakemore, Flossmoor, IL (US);
Yu-Sen Chen, Naper Ville, IL (US);
Assignee:
Dober Chemical Corp., Midlothian, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F 1/108 ;
U.S. Cl.
CPC ...
C23F 1/108 ;
Abstract
A controlled-release coolant additive composition for use in engine coolant systems comprising a core containing at least one coolant additive component and a polymeric coating encapsulating said core. The controlled released coolant additive composition slowly releases the coolant additive components to an engine coolant system, thereby delivering an effective concentration level of coolant additive components over an extended period. The controlled-release coolant additive composition maintains a minimum concentration level of active coolant additive components in the coolant system.