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US4794166A Process for the preparation of a hydrogel which is largely free from monomers 失效
制备大部分不含单体的水凝胶的方法

Process for the preparation of a hydrogel which is largely free from
monomers
摘要:
A polymer hydrogel substantially free from monomers and oligomers is prepared by contacting a previously prepared polymer hydrogel with a single-phase mixture of water and a solvent and then separating the mixture of water and solvent from the hydrogel.
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