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US RE42,282 E1Granted
Dehumidifying element and manufacturing method for the same
AssigneeKorea Institute of Science and Technology
InventorsStephen Faust, Guido Falk, Dae-Young Lee
Life of this patent
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Abstract
A dehumidifying element includes a super absorbing polymer (SAP), and a hygroscopic base, thereby maintaining hygroscopic characteristics regardless of aging and a high humidity absorbing rate and needing a smaller amount of energy for regeneration.
Claims15
A method of preparing a desiccant comprising the steps of:
- selecting a hygroscopic salt solution;
- drying a super absorbing polymer (SAP);
- contacting the dried SAP with the salt solution in order to perform an ionic modification of the SAP ;
- and
- drying a hydrogel generated by the contact between the SAP and the salt solution,
- wherein the SAP comprises an acryl acid cross-linked with at least one of acrylamide, starch, and cellulose.
3 more elements
A method of making a dehumidifying element comprising the steps of:
- engaging a SAP to a carrier;
- drying the carrier to which the SAP is engaged;
- selecting a hygroscopic salt solution;
- contacting the carrier with the hygroscopic salt solution in order to perform an ionic modification of the SAP;
- and
- drying the carrier to which the SAP is engaged.
3 more elements
A method of preparing a desiccant comprising the steps of:
- selecting a hygroscopic salt solution;
- drying a super absorbing polymer (SAP);
- contacting the dried SAP with the salt solution;
- and
- drying a hydrogel generated by the contact between the SAP and the salt solution,
- wherein a base of the SAP comprises an acryl acid cross-linked with at least one of acrylamide, starch, and cellulose.
3 more elements
A method of preparing a desiccant comprising the steps of:
- selecting a hygroscopic salt solution;
- drying a super absorbing polymer (SAP);
- contacting the dried SAP with the salt solution;
- and
- drying a hydrogel generated by the contact between the SAP and the salt solution,
- wherein the SAP comprises an acryl acid and an acrylamide that are cross-linked, and graft polymers of at least one composition selected from the group consisting of starch, cross-linked amylum, and cellulose derivative.
3 more elements
A method of preparing a desiccant comprising the steps of:
- selecting a hygroscopic salt solution;
- drying a super absorbing polymer (SAP);
- contacting the dried SAP with the salt solution;
- and
- drying a hydrogel generated by the contact between the SAP and the salt solution,
- wherein the SAP comprises an acryl acid and an acrylamide that are cross-linked, and a graft polymer of starch cross-linked and corresponding to amylum and cellulose derivatives.
3 more elements
Dependencies are inferred from the claim text.