Method for manufacturing super absorbent resin sheet and super absorbent resin sheet manufactured thereby

A polymer sheet, super-absorbent technology, used in absorbent pads, medical science, bandages, etc., can solve the problems of dispersion or leakage, limited use range, etc., and achieve the effect of improving absorption rate and permeability

Active Publication Date: 2020-07-28
LG CHEM LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of this powdered superabsorbent polymer is limited because it can disperse or leak when manufacturing hygienic materials or in actual use, and it must be used with a specific type of substrate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for manufacturing super absorbent resin sheet and super absorbent resin sheet manufactured thereby
  • Method for manufacturing super absorbent resin sheet and super absorbent resin sheet manufactured thereby
  • Method for manufacturing super absorbent resin sheet and super absorbent resin sheet manufactured thereby

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] According to one embodiment of the present disclosure, there is provided a method of making a superabsorbent polymer sheet, comprising the steps of: preparing a monomer composition comprising a polymer having at least partially neutralized acidic groups Acrylic-based monomers, polyethylene glycol (methyl ether) (meth)acrylate-containing comonomers, polyol-containing internal crosslinking agents, encapsulated blowing agents, and polymerization initiators; by using The hydrogel polymer is prepared by thermally polymerizing or photopolymerizing the monomer composition; and the hydrogel polymer is dried to form a superabsorbent polymer sheet.

[0028] In the present disclosure, the monomer composition as a raw material for the superabsorbent polymer includes an acrylic-based monomer having an at least partially neutralized acidic group, a polyethylene glycol (methyl ether) (methyl ether) ) comonomers of acrylates, polyol-containing internal crosslinkers, encapsulated blowin...

Embodiment 1

[0090] 35.3 g of acrylic acid, 43.5 g of sodium hydroxide (NaOH, 30 wt % solution), and 7.7 g of water were mixed to prepare a neutralized solution (solid content: 56 wt %) in which about 70 mol % of acrylic acid was neutralized.

[0091] To the neutralized solution were added 7.1 g of polyethylene glycol (methyl ether) (meth)acrylate (product name: FA-401, manufacturer: Hannong Chemicals) as a comonomer, 10 g of glycerin, 0.06 g of polyethylene Diol diacrylate (MW=330, manufacturer: Aldrich) and 0.51 g of encapsulated blowing agent (grade 36D, manufacturer: Matsumoto) to prepare a monomer composition.

[0092] The monomer composition was high shear mixed using a mechanical mixer at 500 rpm for about 10 minutes.

[0093] Thereafter, the mixture is added through the feeder of the polymerization reactor to polymerize, thereby forming a hydrogel polymer. At this time, the temperature of the polymerization reactor was maintained at 100°C, the maximum temperature during the polyme...

Embodiment 2

[0097] A superabsorbent polymer sheet was prepared in the same manner as in Example 1, except that 20 g of glycerin was used.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The present invention relates to a method for manufacturing a super absorbent resin sheet and a super absorbent resin sheet manufactured thereby. According to the method for manufacturing a super absorbent resin sheet of the present invention, a super absorbent resin sheet that is porous and flexible can be manufactured.

Description

technical field [0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims Korean Patent Application No. 10-2017-0172269 filed with the Korean Intellectual Property Office on December 14, 2017 and Korean Patent Application No. 10-2018-0161304 filed with the Korean Intellectual Property Office on December 13, 2018 Interest, the disclosure of which is incorporated herein by reference in its entirety. [0003] The present disclosure relates to methods of making superabsorbent polymer sheets and superabsorbent polymer sheets made therefrom. Background technique [0004] Super Absorbent Polymer (SAP) is a synthetic polymer material capable of absorbing 500 to 1000 times its own weight in water. Each manufacturer names it with different names, such as SAM (SuperAbsorbency Material, superabsorbent material), AGM (Absorbent Gel Material, absorbent gel material) and the like. Such superabsorbent polymers began to be practically used in hygiene products, and n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J3/075C08J9/14C08F220/26C08K5/00C08K5/053C08K9/10C08F220/06
CPCC08F220/06C08J9/32C08J2203/22C08J3/075C08J2333/08C08J2333/10C08J3/24C08J3/12C08F2/16C08F2/44A61L15/60C08F220/286C08F222/102B01J20/267B01J20/28033B01J20/3064B01J20/3085
Inventor 尹基烈崔贤朱孝叔金琪哲金柱圻
Owner LG CHEM LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap