GB1309321A - Process for the manufacture of hydrophobic granular starch ethers - Google Patents

Process for the manufacture of hydrophobic granular starch ethers

Info

Publication number
GB1309321A
GB1309321A GB1309321DA GB1309321A GB 1309321 A GB1309321 A GB 1309321A GB 1309321D A GB1309321D A GB 1309321DA GB 1309321 A GB1309321 A GB 1309321A
Authority
GB
United Kingdom
Prior art keywords
starch
chloride
halide
starch ethers
moles
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
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.)
Scholten-Honig Research NV
Original Assignee
Scholten-Honig Research 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 Scholten-Honig Research NV filed Critical Scholten-Honig Research NV
Publication of GB1309321A publication Critical patent/GB1309321A/en
Expired legal-status Critical Current

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
    • C08B31/10—Alkyl or cycloalkyl ethers
    • 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
    • C08B31/14—Aryl or aralkyl ethers

Abstract

1309321 Hydrophobic starch ethers SCHOLTEN-HONIG RESEARCH NV 13 July 1971 [14 July 1970] 33992/70 Heading C3U Hydrophobic starch ethers having a degree of substitution of at least 0À1 (e.g. 0À28) are produced by etherifying granular starch with 0À16 to 2À0 moles of alkyl halide, alicyclic halide or aralkyl halide per mole of starch in the presence of up to 0À4 moles of alkali hydroxide per mole of starch in an aqueous suspension containing 40 to 49 parts by weight of sodium sulphate or potassium chloride per 100 parts by weight of water. Etherifying agents: C 3 -C 12 alkyl halides such as propyl, isopropyl, butyl, amyl, allyl, methallyl and propargyl chloride, alicyclic halides containing 6 to 12 carbon atoms such as 2-cyclohexenyl chloride, and aralkyl halides containing an araliphatic group of 7 to 12 carbon atoms such as benzyl, p-halobenzyl and o-halo-benzyl chloride, and the corresponding bromides and iodides. Starches: corn, waxy maize, high amylose maize, potato, sago, wheat, tapioca and rice. A water miscible solvent, emulsifying agent (sodium lauryl sulphate) and anti-foaming agent may be included in the suspension.
GB1309321D 1970-07-14 1970-07-14 Process for the manufacture of hydrophobic granular starch ethers Expired GB1309321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3399270 1970-07-14

Publications (1)

Publication Number Publication Date
GB1309321A true GB1309321A (en) 1973-03-07

Family

ID=10360004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309321D Expired GB1309321A (en) 1970-07-14 1970-07-14 Process for the manufacture of hydrophobic granular starch ethers

Country Status (1)

Country Link
GB (1) GB1309321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305144A1 (en) * 2003-02-08 2004-08-26 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Process for the preparation of modified polysaccharides with improved hydrophobic properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305144A1 (en) * 2003-02-08 2004-08-26 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Process for the preparation of modified polysaccharides with improved hydrophobic properties

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Legal Events

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