Patch and patch preparation
US9808609B2 · kind B2 · utility
0Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2012 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Aug 15, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L31/129
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a patch and a patch preparation having an adhesive layer with a high adhesive force, wherein the hydrophobic adhesive layer does not bloom even when an organic fluid component having high polarity is contained therein. The patch contains a support and an adhesive layer on at least one surface of the support, wherein the adhesive layer contains a synthetic rubber having a viscosity average molecular weight of 500,000-1,600,000, an organic fluid component having high polarity, a tackifier, and magnesium aluminometasilicate. In the patch preparation, the above-mentioned adhesive layer further contains a drug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.