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. 20, 2013
Filed:
Apr. 22, 2010
Rakesh Kumar Gupta, Kingsport, TN (US);
Daniel William Klosiewicz, Kingsport, TN (US);
Melvin Glenn Mitchell, Penrose, NC (US);
Marvin Lynn Mitchell, Parker, CO (US);
Rakesh Kumar Gupta, Kingsport, TN (US);
Daniel William Klosiewicz, Kingsport, TN (US);
Melvin Glenn Mitchell, Penrose, NC (US);
Marvin Lynn Mitchell, Parker, CO (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Sulfopolyester thermoplastic resins provide advantages in papermaking processes and in paper products including paperboard. Improvements in wet strength and dry strength of paper products are achieved by addition of sulfopolyester thermoplastic resins and cationic strength additives during the paper making process. The use of sulfopolyester thermoplastic resins in paper products also significantly enhances the repulpability of the paper.