Films and bags with visually distinct regions and methods of making the same
US10538052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24909
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
One or more implementations of a multi-layer film include a first substantially un-pigmented layer non-continuously bonded to a second pigmented layer. The multi-layer film includes an unexpected appearance differing from the appearance of the pigmented layer. In one or more embodiments, the multi-layer film includes a metallic appearance despite the pigmented layer being devoid of metallic pigment. The multi-layer film also includes areas that are visually distinct from areas of the film with the unexpected appearance. The visually-distinct areas comprise areas in which the first substantially un-pigmented layer non-continuously bonded is in intimate contact with the second pigmented layer. The visually-distinct areas have the appearance of the pigmented layer. One or more implementations also include methods of making multi-layer films and bags with an unexpected appearance and visually-distinct areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.