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. 31, 2005
Filed:
Dec. 12, 2002
Joseph Royer, Greenville, SC (US);
Joseph M. Desimone, Chapel Hill, NC (US);
George W. Roberts, Raleigh, NC (US);
Saad A. Khan, Cary, NC (US);
Joseph Royer, Greenville, SC (US);
Joseph M. DeSimone, Chapel Hill, NC (US);
George W. Roberts, Raleigh, NC (US);
Saad A. Khan, Cary, NC (US);
North Carolina State University, Raleigh, NC (US);
The University of North Carolina at Chapel Hill, Chapel Hill, NC (US);
Abstract
Methods of carrying out a reactive extrusion processes are described that include combining at least one polymer, oligomer, or combination thereof, a carbon dioxide containing fluid, and at least one reactant in an extruder to form a mixture such that the carbon dioxide containing fluid comes into intimate contact with the at least one polymer, oligomer, or combination thereof and assists in a reaction between the at least one polymer, oligomer, or combination thereof and the at least one reactant, and wherein the at least one polymer, oligomer, or combination thereof is modified upon reaction with the at least one reactant.