Process for producing telechelic, branched and star thermoplastic resin polymers
US5498679A · kind A · utility
34Cited by
3References
18Claims
0Family size
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Key dates
| Filing date | Mar 30, 1995 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Mar 30, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A free radical polymerization process for the preparation of a thermoplastic resin or resins includes heating a mixture of a multifunctional nitroxide compound and at least one polymerizable monomer compound to form a thermoplastic resin or resins; cooling the mixture; and optionally isolating and washing and drying the thermoplastic resin. A multifunctional nitroxide compound for use in the reaction is formed from a stable free radical agent and a compound having one or more halide functional groups. The free radical polymerization process may be used to prepare telechelic, branched and star polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.