Macromonomer mixture, terminal-reactive polymer mixture, intermediate for macromonomer and silicone hydrogel
US8748548B2 · kind B2 · utility
4Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Dec 26, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/102
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To obtain a hydrophilic macromonomer mixture which is a highly polymerized hydrophilic macromonomer, has few components not bonded to the polymer chain after polymerization, and is less likely to leaching. Provided is a macromonomer mixture containing macromonomer A being a macromonomer having a group obtained by further introducing a polymerizable group into a reactive group derived from a polymerization initiator at an end thereof; and macromonomer B being a macromonomer having a group obtained by further introducing a polymerizable group into a reactive group derived from a chain transfer agent at an end thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.