Lithium styrene sulfonate
US10011563B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Feb 4, 2015 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Feb 4, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
To provide a novel lithium styrene sulfonate which is capable of solving a problem of an increase of the production cost due to drying under atmospheric pressure or reduced pressure at a temperature of at least 40° C. and a problem of polymerization of lithium styrene sulfonate. The lithium styrene sulfonate is characterized in that when measured by using a Thermogravimetric-Differential Thermal Analyzer under measuring condition of heating at a temperature raising rate of 2° C./min in a nitrogen stream, the temperature at the top of the main endothermic peak in a range of from 80 to 170° C., is at least 120° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.