Flame-retardant modified intermediate prepared by grafting of alkali lignin and undecylenic acid
The invention discloses a preparation method and application of an intermediate product for improving the flame retardant property of alkali lignin. The intermediate is a grafted product of undecylenic acid and alkali lignin, is used as a grafted product prepared from alkali lignin and undecylenic a...
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Format: | Patent |
Sprache: | chi ; eng |
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