Catalyst for curable compositions containing hexahydrotriazine structural units
US11097259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Apr 26, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0685
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound containing at least one hexahydrotriazine unit of formula (I) having at least one amidine or guanidine group and to the use thereof as a catalyst for the crosslinking of a functional compound, in particular a polymer including silane groups. The compound contains at least one hexahydrotriazine unit of formula (I) is producible in a simple process from readily available feedstocks, odorless at room temperature, non-volatile and largely non-toxic. The compound accelerates the crosslinking of functional polymers surprisingly well and by simple variation of the substituents is variable such that it has very good compatibility in different polymers as a result of which such compositions do not have a propensity for migration-based defects such as separation, exudation or substrate contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.