GB1073268A – Stable polyacetaldehydes and process for the production thereof
– Google Patents
GB1073268A – Stable polyacetaldehydes and process for the production thereof
– Google Patents
Stable polyacetaldehydes and process for the production thereof
Info
Publication number
GB1073268A
GB1073268A
GB4748965A
GB4748965A
GB1073268A
GB 1073268 A
GB1073268 A
GB 1073268A
GB 4748965 A
GB4748965 A
GB 4748965A
GB 4748965 A
GB4748965 A
GB 4748965A
GB 1073268 A
GB1073268 A
GB 1073268A
Authority
GB
United Kingdom
Prior art keywords
polyacetaldehyde
polyacetaldehydes
stable
production
washing
Prior art date
1964-11-09
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
GB4748965A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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.)
1964-11-09
Filing date
1965-11-09
Publication date
1967-06-21
1965-11-09
Application filed by Charbonnages de France CDF
filed
Critical
Charbonnages de France CDF
1967-06-21
Publication of GB1073268A
publication
Critical
patent/GB1073268A/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
C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
C08G2/28—Post-polymerisation treatments
Abstract
A thermally-unstable non-crystalline polyacetaldehyde is stabilized by washing the polyacetaldehyde in an undissolved state with an aqueous alkaline solution. The polyacetaldehyde may have been treated with a carboxylic acid anhydride. The aqueous alkaline solution may be of a carbonate, a bicarbonate or a hydroxide of an alkali metal, e.g. sodium, potassium or lithium. The washing may be effected by means of a turbo-agitator for ensuring grinding and stirring.
GB4748965A
1964-11-09
1965-11-09
Stable polyacetaldehydes and process for the production thereof
Expired
GB1073268A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR994366A
FR1422246A
(en)
1964-11-09
1964-11-09
Thermally stable acetaldehyde polymers and process for obtaining them
Publications (1)
Publication Number
Publication Date
GB1073268A
true
GB1073268A
(en)
1967-06-21
Family
ID=8842123
Family Applications (3)
Application Number
Title
Priority Date
Filing Date
GB4749165A
Expired
GB1096609A
(en)
1964-11-09
1965-11-09
A method of heat stabilization of acetaldehyde polymers
GB4748965A
Expired
GB1073268A
(en)
1964-11-09
1965-11-09
Stable polyacetaldehydes and process for the production thereof
GB4749065A
Expired
GB1068106A
(en)
1964-11-09
1965-11-09
Stable polyacetaldehydes and process for the production thereof
Family Applications Before (1)
Application Number
Title
Priority Date
Filing Date
GB4749165A
Expired
GB1096609A
(en)
1964-11-09
1965-11-09
A method of heat stabilization of acetaldehyde polymers
Family Applications After (1)
Application Number
Title
Priority Date
Filing Date
GB4749065A
Expired
GB1068106A
(en)
1964-11-09
1965-11-09
Stable polyacetaldehydes and process for the production thereof
Country Status (6)
Country
Link
BE
(1)
BE672004A
(en)
CH
(1)
CH445860A
(en)
FR
(1)
FR1422246A
(en)
GB
(3)
GB1096609A
(en)
LU
(1)
LU49790A1
(en)
NL
(3)
NL6514527A
(en)
1964
1964-11-09
FR
FR994366A
patent/FR1422246A/en
not_active
Expired
1965
1965-11-05
CH
CH1528265A
patent/CH445860A/en
unknown
1965-11-08
LU
LU49790A
patent/LU49790A1/xx
unknown
1965-11-08
BE
BE672004D
patent/BE672004A/xx
unknown
1965-11-09
GB
GB4749165A
patent/GB1096609A/en
not_active
Expired
1965-11-09
NL
NL6514527A
patent/NL6514527A/xx
unknown
1965-11-09
GB
GB4748965A
patent/GB1073268A/en
not_active
Expired
1965-11-09
NL
NL6514525A
patent/NL6514525A/xx
unknown
1965-11-09
GB
GB4749065A
patent/GB1068106A/en
not_active
Expired
1965-11-09
NL
NL6514526A
patent/NL6514526A/xx
unknown
Also Published As
Publication number
Publication date
GB1068106A
(en)
1967-05-10
BE672004A
(en)
1966-05-09
NL6514527A
(en)
1966-05-10
NL6514525A
(en)
1966-05-10
NL6514526A
(en)
1966-05-10
LU49790A1
(en)
1966-05-09
FR1422246A
(en)
1965-12-24
GB1096609A
(en)
1967-12-29
CH445860A
(en)
1967-10-31
Similar Documents
Publication
Publication Date
Title
GB1073268A
(en)
1967-06-21
Stable polyacetaldehydes and process for the production thereof
GB942027A
(en)
1963-11-20
Improvements in preparation of alkali metal hydrosulfites
ES375811A1
(en)
1972-04-16
Manufacture of sodium carbonate
GB848368A
(en)
1960-09-14
Hydrolysis process
GB1014701A
(en)
1965-12-31
Salt composition useful in processing meat and method of producing the same
GB887012A
(en)
1962-01-10
Process for the preparation of 18ª–glycyrrhetinic acid
ES350903A1
(en)
1969-05-16
A process for the production of dense soda.
GB885829A
(en)
1961-12-28
Process for the production of 3, 4-dimethyl-5-aminoisooxazole
GB1030969A
(en)
1966-05-25
Improvements in or relating to the preparation of weak acids from their salts by electrodialysis
GB1090559A
(en)
1967-11-08
Process for the production of alkali salts of carboxylic acids
ES322020A1
(en)
1966-07-16
Procedure for the preparation of alkaline agents of cleaning and rinse. (Machine-translation by Google Translate, not legally binding)
ES311273A1
(en)
1966-02-01
A procedure to produce blanked paste of cellulose material. (Machine-translation by Google Translate, not legally binding)
CA714473A
(en)
1965-07-27
Removal of iron from aqueous concentrated alkali metal hydroxide solutions
ES321933A1
(en)
1966-06-16
A procedure to make a glass horn. (Machine-translation by Google Translate, not legally binding)
GB898737A
(en)
1962-06-14
Method for the production of paper pulp
GB1045271A
(en)
1966-10-12
Improvements in the manufacture of dextrinated lead azide
ES324228A1
(en)
1967-02-01
Procedure for the preparation of sulfonilureas and sulfonilsemicarbazidas. (Machine-translation by Google Translate, not legally binding)
DK94091C
(en)
1962-08-13
Electrolyte containing an aqueous solution of an hydroxide of an alkali metal for use in rechargeable dry elements.
GB1119256A
(en)
1968-07-10
Production of alkali metal salts of phenylglycine
ES200117A1
(en)
1951-12-01
A procedure for obtaining xylose from the hydrolyzed vegetable waste (Machine-translation by Google Translate, not legally binding)
GB986524A
(en)
1965-03-17
Process for the purification of waste gases arising in phthalic anhydride manufacture
ES268572A1
(en)
1961-12-16
A process for converting nitrosyl chloride in nitrogen oxide and an aqueous solution of acids (Machine-translation by Google Translate, not legally binding)
GB760341A
(en)
1956-10-31
2-hydroxy-3:5:6-trichlorobenzyl alcohol
ES219293A1
(en)
1955-02-16
Procedure for the preparation of concentrated and stable solutions of monosemicarbazone of adrenocromo (Machine-translation by Google Translate, not legally binding)
ES354918A1
(en)
1969-11-16
Procedure for the obtaining of tulaqualtyluride disulfures by oxidation of alkaline dialquilditicoarbamates. (Machine-translation by Google Translate, not legally binding)
None