HYPROMELLOSE ACETATE SUCCINATE, METHOD FOR PRODUCING THE SAME AND COMPOSITION CONTAINING THE SAME

EPO Patent Application EP 3216/808 A1
Application Date: Sep. 13rd, 2017

ABSTRACT

Provided are hypromellose acetate succinate (HPMCAS) which exhibits high solubility and can suppress generation of undissolved materials when dissolved in a solvent; an HPMCAS-containing composition; and a method for producing...
Assignee(s):
Inventor(s):
KIKUCHI, Kazuki
YOSHIDA, Mitsuhiro
MATSUBARA, Junichi
YAMASHITA, Tatsuya
KITAMURA, Akira
MARUYAMA, Naosuke
Application Number:
17159962.4
International Classification:
C08B 13/00 (20060101)
No Pictures Available

CLAIMS

What is claimed is:

Hypromellose acetate succinate having a ratio of 2-position MS to 3-position MS of 1.2 or less, wherein the 2-position MS means a molar substitution of hydroxypropyl group by which a hydrogen atom of a hydroxyl group on 2-position carbon of each glucose unit of the hypromellose acetate succinate has been...

DESCRIPTION

BACKGROUND OF THE INVENTION

The present invention relates to hypromellose acetate succinate, a method for producing the hypromellose acetate succinate, and a composition containing the hypromellose acetate succinate.
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