GB1199090A - Process for Etherification and Gelatinization of Starch - Google Patents

Process for Etherification and Gelatinization of Starch

Info

Publication number
GB1199090A
GB1199090A GB5670468A GB5670468A GB1199090A GB 1199090 A GB1199090 A GB 1199090A GB 5670468 A GB5670468 A GB 5670468A GB 5670468 A GB5670468 A GB 5670468A GB 1199090 A GB1199090 A GB 1199090A
Authority
GB
United Kingdom
Prior art keywords
cross
starch
concentration
gelatinization
swelling
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5670468A
Inventor
Erling Tormod Hjermstad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Penick & Ford Ltd
Original Assignee
Penick & Ford Ltd
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 Penick & Ford Ltd filed Critical Penick & Ford Ltd
Priority to GB5670468A priority Critical patent/GB1199090A/en
Publication of GB1199090A publication Critical patent/GB1199090A/en
Expired legal-status Critical Current

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
    • C08B31/08—Ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

1,199,090. Cross-linked starch. PENICK & FORD Ltd. 29 Nov., 1968, No. 56704/68. Heading C3U. Starch in the form of cold-water insoluble, native, ungelatinized granules is cross-linked with either divinyl sulphone or an urea-formaldehyde resin under non-swelling conditions of temperature and alkalinity until it is sufficiently insolubilized to settle out after soaking at 5% concentration for 30 min. at 75‹ F. in 1% by wt. aq. NaOH, and the insolubilized product is etherified in a water suspension without swelling it to an unfilterable state with a monofunctional reagent to an ether group D.S. of at least 0À2 and is recovered by filtration. Optionally the product may be gelatinized by heating either in aqueous alkali of 0À1-4À0% by wt. concentration if divinyl sulphone was the cross-linking agent, or in aqueous acid at a pH below 5À0 when an U-F resin was used. Gelatinization is believed to break the cross-links. In examples the etherifying agents are: ethylene or propylene oxide, 1,2-epoxybutane, sodium monochloracetate, acrylonitrile, allyl chloride and methyl chloride.
GB5670468A 1968-11-29 1968-11-29 Process for Etherification and Gelatinization of Starch Expired GB1199090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5670468A GB1199090A (en) 1968-11-29 1968-11-29 Process for Etherification and Gelatinization of Starch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5670468A GB1199090A (en) 1968-11-29 1968-11-29 Process for Etherification and Gelatinization of Starch

Publications (1)

Publication Number Publication Date
GB1199090A true GB1199090A (en) 1970-07-15

Family

ID=10477326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5670468A Expired GB1199090A (en) 1968-11-29 1968-11-29 Process for Etherification and Gelatinization of Starch

Country Status (1)

Country Link
GB (1) GB1199090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117222A (en) * 1976-07-31 1978-09-26 Hoechst Aktiengesellschaft Process for the manufacture of absorbent, modified starch ethers and their use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117222A (en) * 1976-07-31 1978-09-26 Hoechst Aktiengesellschaft Process for the manufacture of absorbent, modified starch ethers and their use

Similar Documents

Publication Publication Date Title
US2517577A (en) Preparation of carboxyalkyl ethers of cellulose
US4920214A (en) Process for producing modified cyclodextrins
GB1022810A (en) Starch derivatives
US2516634A (en) Cold-water swelling starch ethers in original granule form
US3422087A (en) Process for forming cationic polysaccharide ethers and product
US3574188A (en) Process for preparing carboxymethyl cellulose or its alkali salt of high viscosity
GB1199090A (en) Process for Etherification and Gelatinization of Starch
US2524400A (en) Chemically modified starches
CN1286265A (en) High-substituted hydroxypropylcellulose ether and its preparing process
FR2551087B1 (en) PROCESS FOR TREATING POLYSACCHARIDE SOLUTION AND USE THEREOF
US2650917A (en) Gum ethers and process therefor
US3577407A (en) Highly hydroxypropylated granule potato starch
US3069409A (en) Process of preparing carboxyalkyl cellulose ethers
GB927665A (en) Dialdehyde polysaccharide-bisulfite process
GB1440719A (en) Process for the production of fermentation polysaccharides having a non-fibrous structure
US4024335A (en) Homogeneous hydroxy-alkylation of cellulose
FR1601483A (en) Starch etherification and gelatinisation
US3336292A (en) Quaternary ammonium starch ethers and process of preparation
US3049537A (en) Water-soluble cellulose ethers and process
US3560480A (en) Process for making anionic water-soluble polysaccharides
NL6901262A (en) Starch etherification and gelatinisation
US3726859A (en) Process for the preparation of cellulose derivatives containing carbamoylethyl groups
GB741742A (en) Improvements in or relating to preparation of starch ethers and the products resulting therefrom
US3065222A (en) Cation exchange starches which retain their original granular form and process for making same
GB889676A (en) Water insoluble films

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees