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

Water absorbability resin composition

A technology of resin composition and water absorption, applied in the direction of absorbent pads, other chemical processes, bandages, etc., can solve the problems of reduced absorption capacity, difficult absorption performance, and insufficient improvement of solid-state properties of absorbent products, so as to reduce moisture return , the effect of balanced absorption performance

Active Publication Date: 2004-08-04
NIPPON SHOKUBAI CO LTD
View PDF37 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The absorbency increases when pressure is applied, while the increase in surface cross-linking density reduces the absorbency without pressure, so it is not easy to obtain a balanced absorbency, and will not sufficiently improve the solid state properties of absorbent 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water absorbability resin composition
  • Water absorbability resin composition
  • Water absorbability resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0184] 30 parts of the water-absorbent resin A obtained in Reference Example 1 and 70 parts of the water-absorbent resin C obtained in Reference Example 3 were charged at a relative humidity of 40% RH into a Redige mixer (manufactured by Redige Corp, sold under the designation "TypeM5R") to Stirring was carried out at 330 rpm for 15 seconds to obtain a water-absorbent resin composition (1).

Embodiment 2

[0186] The water-absorbent resins A-E obtained in Reference Examples 1-7 were mixed according to the method of Example 1 with the composition ratios listed in Table 8 to obtain water-absorbent resin compositions (2)-(11).

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
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

A water-absorbent resin composition excelling in an absorption capacity under pressure, a first transition of initial absorption, and the small amount of rewet is provided. It comprises a water-absorbent resin obtained by aqueous solution polymerization and by reversed-phase suspension or reversed-phase emulsion polymerization and shows a CSF of not less than 20 g / g or an AAP of not less than 20 g / g or an SFC of not less than 10 (unit: 10 -7 × cm 3 × s X g -1 ). The gaps among resin particles owing to the difference in shape form optimum gap widths for the sake of capillarity. The resin composition consequently formed, therefore, manifests such excellent properties without the influences of a surfactant or an emulsifier.

Description

technical field [0001] The present invention relates to a water-absorbent resin composition which is a mixture of water-absorbent resins obtained in various forms and by different polymerization methods, which has excellent absorption characteristics such as absorption capacity, permeability (permeation of physiological saline flow capacity), capillary absorption capacity, the first transition of initial absorption, and reduce the rewet of the absorbed liquid. Background technique [0002] Water-absorbent resins capable of absorbing water tens to hundreds of times their own weight have been developed, and have been used for absorption and water retention. For example, firstly, in hygienic materials including hygienic products and disposable diapers, fields of agricultural and gardening materials, Food fields that require freshness preservation, anti-condensation and heat insulation professional fields. As such water-absorbent resins, hydrolyzed products of starch-acrylonitr...

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): A61L15/60B01J20/26C08J3/00
CPCB01J20/26A61L15/60C08J3/005B01J2220/44Y10S524/916B01J20/28004C08J2300/14C08F2/14C08F2/32
Inventor 藤丸洋圭和田克之石崎邦彦井村元洋井上博树
Owner NIPPON SHOKUBAI CO LTD
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