Process for coating gelatin capsules
US4816259A · kind A · utility
97Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Feb 12, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J3/005
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention provides a new gelatin capsule formulation and subcoating for producing soft gelatine capsules having better mechanical strength and an improved capacity for adhering to known coating compositions, particularly enteric coating compositions. The finished capsule shell formulation comprises gelatin 65%-70%, glycerin 22%-25% and water 8%-10% and the subcoating is a suspension of hydroxypropyl methylcellulose. The subcoating may also be used to manufacture improved enteric coated hard gelatin capsules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.