S,S′BIS-(&agr;, &agr;′-DISUBSTITUTED-&agr;″-ACETIC ACID)- TRITHIOCARBONATES AND DERIVATIVES AS INITIATOR-CHAIN TRANSFER AGENT-TERMINATOR FOR CONTROLLED RADICAL POLYMERIZATIONS AND THE PROCESS FOR MAKING THE SAME
US6596899B1 · kind B1 · utility
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18References
3Claims
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Key dates
| Filing date | Feb 16, 2000 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Feb 16, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A s,s′-bis-(&agr;,&agr;′-disubstituted-&agr;″-acetic acid)-trithiocarbonatte and derivatives thereof can be used as an initiator, chain transfer agent, or terminator for polymerization of monomers such as free radical polymerizable monomers. Homopolymers, copolymers, and the like as well as block copolymers can be made utilizing the trithio carbonate compound such as in a living free radical polymerization as well as to form telechelic polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.