Process for improving mechanical shear stability of acrylic enteric polymers
US5416157A · kind A · utility
0Cited by
17References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1993 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Sep 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/1802
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a process useful for making acrylic polymers of methacrylic acid having improved shear stability. The process provides polymers useful as enteric coatings for medicaments having improved coating efficiency of pharmaceutical forms. Also provided are medicaments in solid form coated with said polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.