Arylsulfinate salts in initiator systems for polymeric reactions
US7030169B2 · kind B2 · utility
7Cited by
72References
23Claims
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Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jan 12, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/029
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions are provided that that can be used as an initiator system for free radical polymerization reactions. More specifically, the initiator systems include an electron acceptor and an electron donor. The electron donors are arylsulfinate salts having a cation that contains at least one carbon atom and either a positively charged nitrogen atom or a positively charged phosphorus atom. Methods of polymerization are also provided that can be used to prepare polymeric material with the initiator systems. The initiator systems can be thermal initiator systems, photoinitiator systems, or combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.