Initiators for materials which can be polymerized cationically
US5366947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Aug 18, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/68
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Initiator compositions for materials which can be polymerized cationically are described, these containing PA0 i) an anhydride of a polycarboxylic acid, a polyisocyanate, a cyclic carbonate, a lactone or a mixture of such compounds, and dissolved therein PA0 ii) at least one compound of the formula I EQU [M.sup.+n (L).sub.x ].sup.n+ n X.sup.- (I) PA0 in which n is 2 or 3, M is a metal cation selected from the group consisting of Zn.sup.2+, Mg.sup.2+, Fe.sup.2+, Co.sup.2+, Ni.sup.2+, Cr.sup.2+, Ru.sup.2+, Mn.sup.2+, Sn.sup.2+, VO.sup.2+, Fe.sup.3+, Al.sup.3+ and Co.sup.3+, X.sup.- is an anion which is selected from the group consisting of AsF.sub.6.sup.-, SbF.sub.6.sup.-, BiF.sub.6.sup.- and derivatives derived from these anions in which a fluorine atom is replaced by hydroxyl groups, or in which up to 50% of the anions X.sup.-, based on the total amount of anions, can also be any desired anions, L is water or an organic .sigma.-donor ligand which contains, as ligand sites, one or more functional radicals selected from the group consisting of --CO--, --CO--O--, --O--CO--O--and --O--, and which forms .sigma.-bonds with the central atom via the oxygen atom or via the oxygen atoms, and…
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