Photocurable composition containing an &agr;-cyanoacrylate and a metallocene compound
US6503959B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1996 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Oct 11, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F22/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A photocurable composition comprising (A) an &agr;-cyanoacrylate and (B) a metallocene compound comprising a transition metal of Group VIII of the periodic table and aromatic electron system ligands selected from &pgr;-arenes, indenyl, &eegr;-cyclopentadienyl. The photocurable composition may further comprise (C) a cleavage-type photoinitiator. The photocurability of the photocurable composition can be greatly improved by incorporating a cleavage type photoinitiator into the composition. Even when the composition contains a radical-polymerizable compound such as an acrylic compound, it can be rapidly cured due to the cleavage type photoinitiator contained therein. In the case where the cleavage-type photoinitiator used is a peroxide, heating can also be used to cure the composition. In the case where the cleavage type photoinitiator used is an azo compound, the composition can be foamed by regulating the addition amount of the photoinitiator or the quantity of light with which the composition is irradiated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.