Biodegradable surfactant, preparation method and use thereof
US9499667B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Apr 19, 2013 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/48
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a methoxypoly(ethylene glycol)-poly(lactide) block copolymer capped with phenylalanine group. The block copolymer is represented by formula (I), wherein R is acyl amine group, a=20-200, b=5-50; and molecular weights of the ethoxypoly(ethylene glycol) block component and the poly(lactide) block component respectively range from 1000-5000 and 1000-10000. The preparation method and use of the block copolymer are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.