Back to results
US 11,559,784 B2Granted
Superabsorbent polymer and preparation method thereof
AssigneeLG Chem, Ltd.
InventorsYong Seok Choi, Yeon Woo Hong, Eunji Shin, Taebin Ahn
Life of this patent
Estimating the term…
Abstract
Provided is a method of preparing a superabsorbent polymer. More particularly, provided is a method of preparing a superabsorbent polymer, the method capable of preparing the superabsorbent polymer maintaining excellent basic absorption performances such as centrifugal retention capacity, absorbency under load, etc. while also exhibiting an improved absorption rate.
Claims10
A method of preparing a superabsorbent polymer, the method comprising:
- a) mixing a water-soluble ethylenically unsaturated monomer, an internal crosslinking agent, and a polymerization initiator to prepare a monomer composition;
- b) polymerizing the monomer composition to prepare a water-containing gel polymer;
- c) chopping the water-containing gel polymer;
- d) adding one or more fibers of a fluff pulp and a synthetic polymeric fiber to the chopped water-containing gel polymer and mixing them with each other to prepare a mixture;
- e) chopping the mixture;
- f) drying the mixture;
- and
- g) pulverizing the mixture,
- wherein the fiber has a length of 1 mm to 20 mm.
6 more elements
Dependencies are inferred from the claim text.