Patent · US Active

Composition for application to a nasal mucosa comprising a methylcellulose

US9937258B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Jaime L. Curtis-Fisk · Midland, US
Susan L. Jordan · Doylestown, US
True L. Rogers · Midland, US
Matthias Knarr · Nienburg/Weser, DE
Meinolf Brackhagen · Walsrode, DE
Roland Adden · Bad Fallingbostel, DE

Key dates

Filing date	Jul 16, 2014
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Jul 16, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K47/02
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A composition designed for application to a mucosa comprises a tonicity-adjusting agent, a methylcellulose, and a liquid diluent, wherein the methylcellulose has anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.