Anaerobically curable compositions comprising a metallacene and acetyl phenyl hydrazine curing system
US12129322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2021 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An anaerobically curable composition comprising (i) a curing system for curing an anaerobically curable component, comprising a combination of a metallocene such as n-butyl ferrocene and acetyl phenyl hydrazine, (ii) the anaerobically curable component comprising: a) a solid resin component and b) a solid anaerobically curable monomer; and wherein the composition is in solid form and has a melting point in the range from 30° C. to 100° C. The metallocene may be present in the amount from about 0.05% to about 2.5% by weight based on the total weight of the composition and the acetyl phenyl hydrazine is present in the amount from about 0.05% to about 1.75% by weight based on the total weight of the composition. Compositions show greater bond strengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.