Water-soluble film for delayed release
US10808210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Jun 24, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/045
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure provides a water-soluble film, including polyvinyl alcohol (PVOH) and (PVOH) and an acrylate resin (e.g., methyl acrylate), wherein the water-soluble film remains intact for at least 3 minutes when submerged in water heated to a temperature of about 40° C., as determined by Bleach Compatibility Method A (described herein). The disclosure further provides a packet or pouch comprising water-soluble film of the disclosure. The packet or pouch can optionally include two or more compartments. The disclosure further provides a pouch including a first sealed compartment containing a first composition, the first sealed compartment comprising the water-soluble film according to the disclosure. Optionally, the first composition can include a bleach composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.