NL7701171A - Absorbent ionic crosslinked starch - useful in the prodn. of tampons, nappies etc. - Google Patents

Absorbent ionic crosslinked starch - useful in the prodn. of tampons, nappies etc.

Info

Publication number
NL7701171A
NL7701171A NL7701171A NL7701171A NL7701171A NL 7701171 A NL7701171 A NL 7701171A NL 7701171 A NL7701171 A NL 7701171A NL 7701171 A NL7701171 A NL 7701171A NL 7701171 A NL7701171 A NL 7701171A
Authority
NL
Netherlands
Prior art keywords
starch
nappies
prodn
tampons
useful
Prior art date
Application number
NL7701171A
Other languages
Dutch (nl)
Original Assignee
Unilever Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Nv filed Critical Unilever Nv
Priority to NL7701171A priority Critical patent/NL7701171A/en
Publication of NL7701171A publication Critical patent/NL7701171A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/08—Ethers
    • C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • Hematology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Water-insoluble crosslinked stiffened starch absorption agents are claimed. The starch is substd. by ionic gps. bound to the starch through ether links and bound with monovalent or divalent counter-ions. The degree of substitution of the crosslinking groups is 0.001-0.04 and the degree of substitution of the ionic groups is such that the crosslinked starch deriv. has a urine retention value of >=6g/g. The prods. have a high absorption value and do not become sticky when fluid has been absorbed, and the absorbed fluid is not expressed from the absorption agent by pressure. The prods. are esp. useful in the prodn. of disposable absorbent aids such as sanitary towels, tampons, nappies, serviettes, etc.
NL7701171A 1977-02-04 1977-02-04 Absorbent ionic crosslinked starch - useful in the prodn. of tampons, nappies etc. NL7701171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7701171A NL7701171A (en) 1977-02-04 1977-02-04 Absorbent ionic crosslinked starch - useful in the prodn. of tampons, nappies etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7701171A NL7701171A (en) 1977-02-04 1977-02-04 Absorbent ionic crosslinked starch - useful in the prodn. of tampons, nappies etc.

Publications (1)

Publication Number Publication Date
NL7701171A true NL7701171A (en) 1978-08-08

Family

ID=19827916

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7701171A NL7701171A (en) 1977-02-04 1977-02-04 Absorbent ionic crosslinked starch - useful in the prodn. of tampons, nappies etc.

Country Status (1)

Country Link
NL (1) NL7701171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296234A (en) 1973-12-19 1981-10-20 Lever Brothers Company Absorbent materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296234A (en) 1973-12-19 1981-10-20 Lever Brothers Company Absorbent materials

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Legal Events

Date Code Title Description
BV The patent application has lapsed