Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Absorbent composition and methods thereof

A synthetic substance and artificial synthesis technology, applied in chemical instruments and methods, absorbent pads, and other chemical processes, can solve the problems that composite polymers are difficult to apply to personal hygiene products and high production costs, so as to improve absorption performance and improve performance effect

Inactive Publication Date: 2012-08-15
熊海山 +3
View PDF11 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the patent, the water absorption performance of the composite polymer is equivalent to that of superabsorbent resin (SAP), but its disadvantage is that the multi-step liquid phase treatment steps make the production cost higher
In addition, the use of "non-permanent" polyvalent metal ions makes it difficult to apply the composite polymer in personal hygiene products

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Surface Modification of Natural Fibers

[0095] Dissolve 10 grams of monolauric maleate in 40 milliliters of 60% alcohol and set aside. Then 35 grams of konjac and 35 grams of soybean powder (fat and protein have been extracted) were mixed. As an alternative, 35 grams of carrageenan can also be used instead of konjac. All powder particles were 20-50 mesh in size. 0.1 g of ammonium persulfate and 0.02 g of N,N'-methylenebisacrylamide were added to the konjac and soybean mixture. Quickly and completely mix this solid into the monolauryl maleate solution mentioned above. Alternatively, the reaction can be carried out in a nitrogen-filled reactor. The reactor was maintained at 30°C for 3 hours. The contents of the reactor were washed with 60% alcohol and recovered by filtration. Dry the solid material at 70°C for 2-4 hours, or until there is no more weight loss within 20 minutes. To speed up the process, the drying step can also be performed under vacuum. During dry...

Embodiment 2

[0097] Inorganic Modification of BKS-1

[0098] Mix 3 g of sepiolite in 45 ml of water thoroughly until a homogeneous sludge-like suspension is formed. Adjust the pH to neutral 5-9 and let the suspension stand at room temperature for 30 minutes. Add 10 grams of BKS-1 powder in Example 1 to the suspension, mix well and keep at 40°C for 10-30 minutes, then adjust the temperature to 70°C for about three hours of drying. The dried solid was ground to particles with a diameter of 0.71 ± 0.15 mm. For clarity, the final product in this step is referred to as BKS-2 from here on out.

[0099] In order to analyze the results of the modification, the adsorption properties were measured with standard methods: free water absorption, centrifuge retention capacity (CRC) and absorption under pressure (AUL). These measurement methods are well known to those skilled in the art. For purposes of illustration, these methods are briefly discussed below.

[0100] Free water absorption (also kno...

Embodiment 3

[0111] In addition to the steps described in Example 2, the following more concise way can also be applied to carry out the modification process. At room temperature, 3 grams of bentonite and 10 grams of BKS-1 powder in Example 1 were thoroughly mixed, and 20 milliliters of water was added to the mixture and mixed well. The reaction was carried out at a temperature of 35° C. for 30 minutes. The mixture was dried in a C64208 Duo-Vac vacuum oven (Lab-Line) at 70°C for 25 minutes. The dried solid was ground to particles with a diameter of 0.71 ± 0.15 mm. The range of adsorption performance of this product after testing was the same as that of BKS-2 described in Example 2.

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

An improved absorbent composition based on the natural hydrocoUoid material treated with porous aluminum silicates quickly absorbs an aqueous liquid and retains the liquid even under external pressure. The improved composition has liquid absorption and retention properties comparable to conventional SAPs, e.g., rapid, simple hydration with stable viscosity maintenance and aqueous liquid retention over wide ranges of temperatures, externally applied pressures, and salinity concentrations. This composition naturally breaks down into simple sugar molecules within several months after hydration from normal use. The released simple sugar molecules provide a great carbon source for microbes, creating an environment that promotes the breakdown of other biodegradable materials in the disposed diaper and landfills. The absorbent composition improves the performance of many aqueous liquid absorption products, such as personal hygiene products, for the absorption of significant amounts of moisture, bodily fluids or other aqueous solutions, when the composition is used as an absorbent in the products

Description

[0001] This application claims the benefit of US Provisional Patent Application No. 61 / 277,620, filed September 28, 2009, the entire disclosure of which is incorporated herein by reference. technical field [0002] The invention relates to an improved water-absorbing agent, a method for making and using the water-absorbing agent, and an environment-friendly product containing the improved water-absorbing agent. The improved water-absorbing agent comprises a natural hydrocolloid material treated with a porous aluminosilicate. Background technique [0003] Disposable personal hygiene products include all members of the absorbent product family, including baby disposable diapers, training pants, feminine napkins, incontinence pads, and other related products. The basic design of these products consists of an absorbent core surrounded by a membrane of permeable material inside and out. Disposable baby diapers are one of the major sources of solid waste in landfills. In the Uni...

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): B01J20/24B01J20/26A61L15/60A61F13/15
CPCA61L15/18A61L15/34A61L15/60B01J20/10B01J20/12B01J20/24B01J20/261B01J20/267B01J20/28004B01J2220/485C08L33/08
Inventor 熊海山托马斯·C·贝利李梅熊尚彬
Owner 熊海山
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com