Hana ʻia ka Hydroxypropyl methyl cellulose (HPMC) mai ka pulupulu i hoʻomaʻemaʻe ʻia, alkalized me ka sodium hydroxide (wai caustic soda) solution, etherified me ka methyl chloride a me propylene oxide, a laila neutralized, i loaʻa ma hope o ka kānana, hoʻomaloʻo, ʻoki a sieving.Hōʻike ʻia nā kikoʻī...
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