Compositions in the form of dissolvable solid structures
US11352474B2 · kind B2 · utility
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222References
15Claims
0Family size
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Key dates
| Filing date | Jun 15, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Jun 15, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F1/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described are dissolvable, porous solid structures formed using certain vinyl acetate-vinyl alcohol copolymers. The copolymer and the porosity of the structure allow for liquid flow during use such that the structure readily dissolves to provide a desired consumer experience. Also described are processes for making open cell foam and fibrous dissolvable solid structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.