Graphic articles comprising polylactic acid polymer based film
US10982090B2 · kind B2 · utility
2Cited by
46References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2017 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2467/006
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A graphic article comprising a Poly lactic acid (PLA) based film and in particular, an ink layer depicting a graphic is described. The PLA based film comprises a semicrystalline polylactic acid polymer, a second of a polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C., and plasticizer. The article is typically a tape or sheet that may further comprise an adhesive (e.g. pressure sensitive) and a low adhesion backsize or a release liner. A method of forming a graphic article using the film of the invention is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.