Ionic oligomer and polymerizable composition containing same for temporary-use water-fragmentable materials
US11021619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Dec 19, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y10/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oligomer bearing at least one crosslinkable ethylenic unsaturation and at least one ionic bond comprises in its structure at least one aminoacrylate group and at least one tertiary amine in a form salified with at least one carboxylic acid. Also described are a process for preparing a solution of the oligomer in a reactive diluent, a crosslinkable composition comprising the oligomer, the use thereof as binder in crosslinkable compositions for temporary-use water-removable materials in coatings, hydrogels and 3D object printing, and the crosslinked material which results from polymerizing the oligomer. As a temporary-use material, the cured oligomer can be easily removed after a temporary function, by simple cleaning with water and optionally at a suitable temperature greater than the glass transition temperature of the crosslinked product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.