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. 13, 2022
Filed:
Apr. 19, 2019
Applicant:
Roquette Freres, Lestrem, FR;
Inventors:
Francesco Trotta, Asti, IT;
Fabrizio Caldera, Alice Castello, IT;
Assignee:
ROQUETTE FRERES, Lestrem, FR;
Primary Examiner:
Int. Cl.
CPC ...
C08B 37/16 (2006.01); A61K 9/48 (2006.01); A61K 47/40 (2006.01);
U.S. Cl.
CPC ...
C08B 37/0012 (2013.01); A61K 9/4816 (2013.01); A61K 47/40 (2013.01);
Abstract
The invention relates a process for preparing a cross-linked starch-based polymer comprising the following steps: 1) dissolving a starchy material in a suitable solvent to form a starchy material solution; and 2) adding a episulfide of formula (I), wherein R, R, Rand Rare independently selected from hydrogen and (C-C)alkyl in the starchy material solution in order to obtain the disulfide crosslinked starch-based polymer. In another aspect the invention concerns a disulfide-cross-linked starch-based polymer obtainable by the process of the invention, that is characterized by only disulfide bridges.