Film composition for hard capsule shells
US-2015150817-A1 · Jun 4, 2015 · US
Composition for forming a film
US10058617B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10058617-B2 |
| Application number | US-201615376921-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2016 |
| Priority date | Dec 16, 2015 |
| Publication date | Aug 28, 2018 |
| Grant date | Aug 28, 2018 |
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Abstract
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Provided is a composition for forming a film, the composition not having completely dissolved hydroxypropyl methyl cellulose (HPMC), and enabling formation of the film having a uniform thickness by suppressing the viscosity increase of the composition around an immersion temperature of 50° C. More specifically provided is a composition for forming a film, the composition comprising hypromellose having methoxy group content of 28.0 to 30.0% by weight and hydroxypropoxy group content of 7.6 to 8.5% by weight, wherein a 2% by weight aqueous solution of the hypromellose provides a viscosity at 20° C. of 4.0 to 6.5 mPa·s, a 20% by weight dispersion of the hypromellose provides a viscosity at 50° C. of 2,000 to 11,000 mPa·s, and a 20% by weight aqueous solution of the hypromellose provides a gelation temperature of 54 to 57° C.; and a solvent.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition for forming a film, the composition comprising: hypromellose having methoxy group content of 28.0 to 30.0% by weight and hydroxypropoxy group content of 7.6 to 8.5% by weight, wherein a 2% by weight aqueous solution of the hypromellose provides a viscosity at 20° C. of 4.0 to 6.5 mPa·s, a 20% by weight dispersion of the hypromellose provides a viscosity at 50° C. of 2,000 to 11,000 mPa·s, and a 20% by weight aqueous solution of the hypromellose provides a gelation temperature of 54 to 57° C.; and a solvent. 2. The composition according to claim 1 , further comprising a gelling agent. 3. The composition according to claim 1 , further comprising a gelling adjuvant. 4. The composition according to claim 2 , further comprising a gelling adjuvant.
Assignees
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Classifications
- A61K47/38Primary
Cellulose; Derivatives thereof · CPC title
Cellulose derivatives · CPC title
Mixed ethers, i.e. ethers with two or more different etherifying groups · CPC title
Manufacture of films or sheets · CPC title
Alkyl ethers · CPC title
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- What does patent US10058617B2 cover?
- Provided is a composition for forming a film, the composition not having completely dissolved hydroxypropyl methyl cellulose (HPMC), and enabling formation of the film having a uniform thickness by suppressing the viscosity increase of the composition around an immersion temperature of 50° C. More specifically provided is a composition for forming a film, the composition comprising hypromellose…
- Who is the assignee on this patent?
- Shinetsu Chemical Co, Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification A61K47/38. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Aug 28 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).