Sulfoxonium salts and their use as polymerization catalysts
US4398014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Oct 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
New aromatic sulfonylsulfoxonium salts are of formula ##STR1## where q is 1 to 4, PA0 R denotes an aliphatic, cycloaliphatic, or aromatic group, PA0 R.sup.6 denotes H, an alkyl or aralkyl group, or a group --COR.sup.9, --CO--NH--(CO).sub.r --R.sup.10, or --SO.sub.2 --R.sup.11, where r is zero or 1, PA0 one, but not both, of R and R.sup.6 denoting an aromatic group, PA0 R.sup.7 denotes an alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, or aralkyl group, PA0 R.sup.8 has the same meaning as R.sup.7 but may alternatively represent a dialkylamino group or, if R.sup.7 denotes alkyl, it may alternatively represent an arylamino group, PA0 R.sup.9, R.sup.10, and R.sup.11 each denote an alkyl, aryl, or aralkyl radical of 1 to 25 carbon atoms, PA0 t is 1, 2, or 3, and PA0 Z.sup.- denotes a t-valent anion of a protic acid. The salts, e.g., dimethyl-p-toluenesulfonylmethylsufoxonium hexafluorophosphate, are useful as catalysts for the polymerization of cationically polymerizable materials by means of actinic radiation and/or heat. Polyepoxides and resols may be photopolymerized in the presence of the salts and subsequently crosslinked with a latent heat-curing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.