Long-chain polymethylene halide telomers
US8236425B2 · kind B2 · utility
1Cited by
75References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Feb 6, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3154
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition comprises a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, the telomers comprising at least one polymethylene segment (—(CH2)n—) and at least one halomethyl group (—CXH2) and optionally comprising at least one non-fluorine heteroatom, and the halogen being selected from iodine and bromine; wherein the distribution has a number average ratio of methylene moieties of the polymethylene segment to the halomethyl groups of at least about 15.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.