| 发明名称 |
Polyurethane-urea] useful for biodegradable film and rigid foam |
| 摘要 |
Poly-(urethane-ureas) (I) from microbial biomass and/or biomass fractions, which comprise at least 60 wt.% proteins and polysaccharides, are obtd. by reacting solns. of the biomass in DMSO or DMA with polyisocyanates at temps. from 120 deg C to the b.pt. of the solvent.
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| 申请公布号 |
DE4430586(A1) |
申请公布日期 |
1996.02.22 |
| 申请号 |
DE19944430586 |
申请日期 |
1994.08.19 |
| 申请人 |
A.U.F ANALYTIK UMWELTTECHNIK FORSCHUNG GMBH, 12489 BERLIN, DE |
发明人 |
KLUEGEL, ULRICH, 12681 BERLIN, DE |
| 分类号 |
C08G18/30;C08G18/64;(IPC1-7):C08G18/64;C08G18/10;C08G18/65 |
主分类号 |
C08G18/30 |
| 代理机构 |
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