NL6901262A - Starch etherification and gelatinisation - Google Patents

Starch etherification and gelatinisation

Info

Publication number
NL6901262A
NL6901262A NL6901262A NL6901262A NL6901262A NL 6901262 A NL6901262 A NL 6901262A NL 6901262 A NL6901262 A NL 6901262A NL 6901262 A NL6901262 A NL 6901262A NL 6901262 A NL6901262 A NL 6901262A
Authority
NL
Netherlands
Prior art keywords
starch
gelatinisation
urea
reacting
formaldehyde resin
Prior art date
Application number
NL6901262A
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 filed Critical
Priority to NL6901262A priority Critical patent/NL6901262A/en
Publication of NL6901262A publication Critical patent/NL6901262A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
    • 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
    • C08B31/003—Crosslinking of starch
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Starch etherification and gelatinisation is accomplished by (a) reacting an aqueous suspension of starch with a cross-linking agent (divinyl sulphone or an urea/formaldehyde resin) until the starch is sufficiently insoluble that it deposits after soaking (5% concentration) in 1% aqueous NaOH for 30 min. at 24 deg.C., (b9 reacting an aqueous suspension of the product with a monofunctional etherifying agent (I) with swelling the starch to an extent that it is non-filtrable, and (c) filtering the starch and heating it in either alkali if divinyl sulphone was used or acid if a urea/formaldehyde resin was used, to break the crossinks and gelatinise the starch.
NL6901262A 1969-01-24 1969-01-24 Starch etherification and gelatinisation NL6901262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL6901262A NL6901262A (en) 1969-01-24 1969-01-24 Starch etherification and gelatinisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6901262A NL6901262A (en) 1969-01-24 1969-01-24 Starch etherification and gelatinisation

Publications (1)

Publication Number Publication Date
NL6901262A true NL6901262A (en) 1970-07-28

Family

ID=19805973

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6901262A NL6901262A (en) 1969-01-24 1969-01-24 Starch etherification and gelatinisation

Country Status (1)

Country Link
NL (1) NL6901262A (en)

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