HYPROMELLOSE ACETATE SUCCINATE AND METHOD FOR PRODUCING THE SAME

USPTO Patent Application US 2018/0116968 A1
Application Date: May 3rd, 2018

ABSTRACT

There are provided HPMCAS (hypromellose acetate succinate) having such a property that a solution of the HPMCAS in a solvent has a controlled viscosity; and a method for producing the...
Assignee(s):
Application Number:
15/797,876
International Classification:
A61K 9/28 (20060101); A61K 31/525 (20060101)
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CLAIMS

What is claimed is:

1. Hypromellose acetate succinate having such a property that a solution of 10 parts by weight of the hypromellose acetate succinate in 100 parts by weight of a mixed solvent having a weight ratio of methylene chloride to methanol of 1:1 has a viscosity at 20° C. of 135 mPa·s...

DESCRIPTION

BACKGROUND OF THE INVENTION

The invention relates to hypromellose acetate succinate and a method for producing the hypromellose acetate succinate.
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