Dry erase article
US10787589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Feb 19, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dry erase articles are described comprising a writable surface layer comprising a cured hardcoat composition comprising the reaction product of certain low surface energy compound(s). In one embodiment, the compound(s) comprise a C18-C36 hydrocarbon group and an ethylenically unsaturated group. In another embodiment, a mixture of compounds is utilized, the mixture comprising first compounds comprising a C18-C36 hydrocarbon group and an ethylenically unsaturated group and second compounds comprising a C8-C17 hydrocarbon group and an ethylenically unsaturated group, wherein the first and second compound are present at a weight ratio of 3:2 to 4:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.