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:
Feb. 13, 2018
Filed:
May. 07, 2014
Dow Global Technologies Llc, Midland, MI (US);
The Regents of the University of Minnesota, Minneapolis, MN (US);
Ligeng Yin, Minneapolis, MN (US);
Marc A. Hillmyer, Minneapolis, MN (US);
Steven J. Guillaudeu, Midland, MI (US);
Robert L. Schmitt, Annandale, NJ (US);
Dow Global Technologies LLC, Midland, MI (US);
University of Minnesota, Minneapolis, MN (US);
Abstract
Esterified cellulose ethers comprising groups of formula —C(O)—CHR'—CHR″—COOA, wherein, R′ and R″ are hydrogen or (—S)m(—R)n-R, wherein Ris a hydrocarbon group having 1 to 4 carbon atoms, Ris an optionally substituted 5- or 6-membered cyclic group, m and n each independently are 0 or 1, and A is hydrogen or a cation, with the proviso that in each group CHR′—CHR″ one of R′ and R″ is hydrogen and the other one is (—S)m(—R)n-R, are useful as excipients for maintaining the concentration of poorly water-soluble drugs in aqueous liquids at supersaturation levels.