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HPMC - 1
| Offer Type: |  |
|---|---|
| Offer Category: | Chemicals > Other Chemicals |
| Offer Post Time: | 2009-10-12 |
| Expiration Date: | 2009-11-20 |
| Details: |
GinShiCelare types of cellulosederivatives known as cellulose ethers, specifically Methyl Cellulose(MC), Hydroxy Propyl Methyl Cellulose(HPMC), Hydroxyethyl Cellulose(HEC), and Hydroxy Ethyl MethylCellulose (HEMC) made by steps below:
Soak the pure cellulose (purified cotton / wood pulp) in an aqueous caustic soda and organic solvent mix. React the resultant alkaline cellulose with etherifying agents, such as alkyl halides or alkylene oxides, Recover the solvents and wash the product, Dry and mill the ethereified product. |
