Onium borates/borates of organometallic complexes and cationic initiation of polymerization therewith
US5550265A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Mar 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/038
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel onium borates of an element of Groups 15 to 17 of the Periodic Table, or borates of an organometallic complex of an element of Groups 4 to 10 of the Periodic Table, well suited for the photochemical/electron beam cationic initiation of polymerization/crosslinking, the anionic borate moiety of which having the formula: EQU [BX.sub.a R.sub.b ].sup.- which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one element or electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.