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:
Sep. 01, 2020
Filed:
Dec. 22, 2011
Applicants:
Milan H. Savich, Beaverton, OR (US);
Rodney L. Forni, Milwaukie, OR (US);
William Chambers, Lebanon, OR (US);
Inventors:
Milan H. Savich, Beaverton, OR (US);
Rodney L. Forni, Milwaukie, OR (US);
William Chambers, Lebanon, OR (US);
Assignee:
UPL LIMITED, Gibraltar, unknown;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 48/80 (2019.01); B29C 48/285 (2019.01); B29C 48/40 (2019.01); B29C 48/68 (2019.01); B29C 48/76 (2019.01); B29C 48/255 (2019.01); C08B 31/00 (2006.01); C08F 251/00 (2006.01); C08F 8/12 (2006.01); B29C 48/65 (2019.01); B29C 48/00 (2019.01);
U.S. Cl.
CPC ...
C08B 31/00 (2013.01); B29C 48/0022 (2019.02); B29C 48/2552 (2019.02); B29C 48/286 (2019.02); B29C 48/402 (2019.02); B29C 48/65 (2019.02); B29C 48/68 (2019.02); B29C 48/767 (2019.02); B29C 48/832 (2019.02); B29C 48/834 (2019.02); C08B 31/006 (2013.01); C08F 8/12 (2013.01); C08F 251/00 (2013.01);
Abstract
Systems for producing superabsorbent polymer particles for use in agricultural applications are disclosed. A monomer is graft polymerized onto a starch to form a starch graft copolymer. The moisture content of the starch graft copolymer is reduced through use of an extruder.