Superabsorbent polymer having high absorption rate under load and preparation method thereof
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United States of America Patent
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Apr 24, 2018
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app pub date -
Nov 27, 2015
filing date -
Nov 27, 2014
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Abstract
Provided are a superabsorbent polymer and a preparation method thereof. In the superabsorbent polymer according to the present invention, a low-temperature foaming agent are used together with a high-temperature foaming agent to control the size and distribution of internal pores of the superabsorbent polymer, thereby increasing absorption rate under load without reduction in gel strength.
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