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:
May. 03, 2005
Filed:
Jun. 12, 2002
Ronald Lee Cook, Lakewood, CO (US);
Brian John Elliott, Superior, CO (US);
Silvia Devito Luebben, Golden, CO (US);
Andrew William Myers, Arvada, CO (US);
Bryan Matthew Smith, Boulder, CO (US);
Ronald Lee Cook, Lakewood, CO (US);
Brian John Elliott, Superior, CO (US);
Silvia DeVito Luebben, Golden, CO (US);
Andrew William Myers, Arvada, CO (US);
Bryan Matthew Smith, Boulder, CO (US);
TDA Research, Wheat Ridge, CO (US);
Abstract
A new class of surface modified particles and a multi-step Michael-type addition surface modification process for the preparation of the same is provided. The multi-step Michael-type addition surface modification process involves two or more reactions to compatibilize particles with various host systems and/or to provide the particles with particular chemical reactivities. The initial step comprises the attachment of a small organic compound to the surface of the inorganic particle. The subsequent steps attach additional compounds to the previously attached organic compounds through reactive organic linking groups. Specifically, these reactive groups are activated carbon—carbon pi bonds and carbon and non-carbon nucleophiles that react via Michael or Michael-type additions.