Preparation method for super absorbent polymer film
AssigneeLG Chem, Ltd.
InventorsKiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyosook Joo, Hyeon Choi, Se Yeol Park
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Abstract
The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
Claims20
A method for preparing a super absorbent polymer film, comprising the steps of:
- preparing a monomer composition by mixing an acrylic acid-based monomer having at least partially neutralized acidic groups, a cellulose-based thickener, a moisturizing agent, a polymerization initiator, and a solvent;
- casting the monomer composition on a substrate to form a monomer composition film;
- forming a hydrogel polymer film by irradiating heat and/or light while drawing the monomer composition film;
- and
- drying the hydrogel polymer film.
Dependencies are inferred from the claim text.