GB1070398A – Process for improving the solubility of high-molecular substances
– Google Patents
GB1070398A – Process for improving the solubility of high-molecular substances
– Google Patents
Process for improving the solubility of high-molecular substances
Info
Publication number
GB1070398A
GB1070398A
GB35400/64A
GB3540064A
GB1070398A
GB 1070398 A
GB1070398 A
GB 1070398A
GB 35400/64 A
GB35400/64 A
GB 35400/64A
GB 3540064 A
GB3540064 A
GB 3540064A
GB 1070398 A
GB1070398 A
GB 1070398A
Authority
GB
United Kingdom
Prior art keywords
cellulose
dialdehyde
water
ethers
mixture
Prior art date
1963-08-30
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
GB35400/64A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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.)
1963-08-30
Filing date
1964-08-28
Publication date
1967-06-01
1964-08-28
Application filed by Kalle GmbH and Co KG
filed
Critical
Kalle GmbH and Co KG
1967-06-01
Publication of GB1070398A
publication
Critical
patent/GB1070398A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
C08L1/08—Cellulose derivatives
C08L1/26—Cellulose ethers
C08L1/28—Alkyl ethers
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
C08B11/00—Preparation of cellulose ethers
C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
C08L29/02—Homopolymers or copolymers of unsaturated alcohols
C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
C08B11/00—Preparation of cellulose ethers
C08B11/02—Alkyl or cycloalkyl ethers
C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
Abstract
The solubility in water of a water-soluble or unlimitedly water-swellable macromolecular carbohydrate or derivative thereof, especially of a cellulose ether, or of a polyvinyl alcohol or derivative thereof, is improved by treatment at elevated temperature with a dialdehyde polysaccharide in a proportion of 0.1-5% by weight, especially 0.3-5% by weight. Specified materials include cellulose ethers and esters, especially methyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose and mixed ethers of cellulose, starch ethers and esters, modified starches, vegetable gums, e.g. gum tragacanth and their derivatives, alginates, polyvinyl alcohol and its derivatives, especially partially etherified or esterified polyvinyl alcohols, e.g. polyvinyl acetate. Specified dialdehyde polysaccharides include dialdehyde starch, and the dialdehyde forms of cellulose, dextran and galactomannan. In general, the process is performed in a neutral medium and the mixture of the dialdehyde polysaccharide and macromolecular substance is heated to 60-130 DEG C., especially 90-110 DEG C., suitably by drying the mixture in air at these temperatures. The dialdehyde polysaccaride may be mixed with the macromolecular compound in the dry state and the mixture moistened with solvent and/or water, or an aqueous solution of the dialdehyde polysaccharide may be employed which is dropped or sprayed on the macromolecular compound. Various techniques are described, including the treatment of cellulose ethers while the latter are being converted from fibrous to particulate form. Examples are given.
GB35400/64A
1963-08-30
1964-08-28
Process for improving the solubility of high-molecular substances
Expired
GB1070398A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DEK0050689
1963-08-30
Publications (1)
Publication Number
Publication Date
GB1070398A
true
GB1070398A
(en)
1967-06-01
Family
ID=7225711
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB35400/64A
Expired
GB1070398A
(en)
1963-08-30
1964-08-28
Process for improving the solubility of high-molecular substances
Country Status (7)
Country
Link
US
(1)
US3372156A
(en)
AT
(1)
AT257164B
(en)
BE
(1)
BE652373A
(en)
CH
(1)
CH497468A
(en)
DE
(1)
DE1470865A1
(en)
GB
(1)
GB1070398A
(en)
NL
(1)
NL6409641A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3489719A
(en)
*
1967-07-05
1970-01-13
Dow Chemical Co
Surface treatment of finely-divided water-soluble polymers
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2415556C3
(en)
*
1974-03-30
1982-09-09
Henkel KGaA, 4000 Düsseldorf
Process for the production of high molecular weight substances treated with glyoxal
US4373959A
(en)
*
1981-06-22
1983-02-15
The Dow Chemical Company
Readily dissolvable polysaccharide compositions
JPH10504332A
(en)
*
1994-07-21
1998-04-28
タイヒ・アクチエンゲゼルシヤフト
Vinyl alcohol copolymer, water-soluble film containing the same and its use as packaging material
AT405287B
(en)
*
1995-05-11
1999-06-25
Teich Ag
USE OF SOFTENERS FOR THERMOPLASTIFICATION OF STARCH
DE10023540A1
(en)
*
2000-05-13
2001-11-15
Clariant Gmbh
Production of modified cellulose ethers comprises reacting cellulose ethers with di- or polyfunctional carboxylic acids activated by reaction with nitrogen-containing compounds
DE10132513A1
(en)
*
2000-08-02
2002-02-14
Henkel Kgaa
Partly-crosslinked water-soluble cellulose ether for use, e.g. in preparations for wallpaper paste, obtained by reacting water-soluble cellulose ether with glyoxal or polyglyoxal at elevated temperature
1963
1963-08-30
DE
DE19631470865
patent/DE1470865A1/en
active
Pending
1964
1964-08-20
NL
NL6409641A
patent/NL6409641A/xx
unknown
1964-08-27
AT
AT742364A
patent/AT257164B/en
active
1964-08-27
BE
BE652373A
patent/BE652373A/xx
unknown
1964-08-27
US
US392631A
patent/US3372156A/en
not_active
Expired – Lifetime
1964-08-27
CH
CH1121764A
patent/CH497468A/en
unknown
1964-08-28
GB
GB35400/64A
patent/GB1070398A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3489719A
(en)
*
1967-07-05
1970-01-13
Dow Chemical Co
Surface treatment of finely-divided water-soluble polymers
Also Published As
Publication number
Publication date
CH497468A
(en)
1970-10-15
DE1470865A1
(en)
1969-10-09
BE652373A
(en)
1965-03-01
NL6409641A
(en)
1965-03-01
US3372156A
(en)
1968-03-05
AT257164B
(en)
1967-09-25
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None