Amidine catalyst for curable compositions
US10995074B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2017 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jan 16, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J183/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An amidine containing at least one structural unit of the formula (I) and the use thereof as catalyst for the crosslinking of a functional compound, especially of a polymer having silane groups. The amidine is preparable in a simple process from readily available starting materials, is largely odorless at room temperature and is of low toxicity. It accelerates the crosslinking of functional compounds surprisingly efficiently and can be adjusted for optimal compatibility with different compositions via the radical to which the structural units of the formula (I) is bonded, which means that such compositions do not have a tendency to migration-related defects such as separation, exudation or substrate soiling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.