NL6901262A - Starch etherification and gelatinisation - Google Patents
Starch etherification and gelatinisationInfo
- 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
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.
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) |
-
1969
- 1969-01-24 NL NL6901262A patent/NL6901262A/en unknown
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