GB778239A - Trihydroxy polyoxyalkylene ethers of glycerol - Google Patents
Trihydroxy polyoxyalkylene ethers of glycerolInfo
- Publication number
- GB778239A GB778239A GB32718/54A GB3271854A GB778239A GB 778239 A GB778239 A GB 778239A GB 32718/54 A GB32718/54 A GB 32718/54A GB 3271854 A GB3271854 A GB 3271854A GB 778239 A GB778239 A GB 778239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- products
- glycerol
- mol
- properties
- aqueous
- 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
Links
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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/02—Preparation of ethers from oxiranes
- C07C41/03—Preparation of ethers from oxiranes by reaction of oxirane rings with hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
- C07C43/04—Saturated ethers
- C07C43/10—Saturated ethers of polyhydroxy compounds
- C07C43/11—Polyethers containing —O—(C—C—O—)n units with ≤ 2 n≤ 10
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2696—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the process or apparatus used
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Glycerol ethers contain three polyoxy-1,2-propylene chains attached to each glycerine molecule and three hydroxypolyoxyethylene chains attached to the polyoxypropylene ones. The average number of oxyalkylene groups per mol. of glycerol is at least 54 and the oxy-1,2-propylene radicals constitute 66-89 mol. per cent of the total oxyalkylene groups. Preparations is carried out in two steps, batchwise or continuously, under substantially moisture-free conditions, with an alkali metal hydroxide or alcoholate as catalyst and preferably in an inert atmosphere, e.g. of nitrogen. Heat may be removed to maintain a temperature of 120-140 DEG C. Alkali in the products may be neutralized, e.g. with acetic acid and the products washed with water and, if desired, freed from volatile products by fractional distillation. The products are non-ionic surface-active agents particularly useful for suppressing and dispersing foam. Examples describe detailed preparations, compare the physical properties of products according to the invention and illustrate the foam-suppressing properties of the products. Reference has been directed by the Comptroller to Specification 731,603.ALSO:Ethers containing an oxy - 1.2 - propylene chain attached to each OH group of glycerol and three hydroxy - polyoxyethylene chains attached to the polyoxypropylene ones, the oxypropylene groups constituting 66-89 mol. per cent of the total oxyalkylene groups (see Group IV(a)) are good anti-foaming agents useful in both aqueous and non-aqueous systems. Example 3 illustrates the anti-foaming properties of the products in aqueous anti-freeze soltions of ethylene glycol and Example 4 compares their anti-foaming properties with those of known anti-foaming agents. Reference has been directed by the Comptroller to Specification 731,603, [Group IV(a)]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US778239XA | 1953-12-07 | 1953-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB778239A true GB778239A (en) | 1957-07-03 |
Family
ID=22140258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32718/54A Expired GB778239A (en) | 1953-12-07 | 1954-11-11 | Trihydroxy polyoxyalkylene ethers of glycerol |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB778239A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1240273B (en) * | 1961-07-21 | 1967-05-11 | Atlas Chem Ind | Process for the production of polyurethane foams |
US4767846A (en) * | 1981-07-04 | 1988-08-30 | Nippon Paint Company Limited | Production of polymeric polyols |
-
1954
- 1954-11-11 GB GB32718/54A patent/GB778239A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1240273B (en) * | 1961-07-21 | 1967-05-11 | Atlas Chem Ind | Process for the production of polyurethane foams |
US4767846A (en) * | 1981-07-04 | 1988-08-30 | Nippon Paint Company Limited | Production of polymeric polyols |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TR22414A (en) | USING ALCOHOLS AND THEIR TUEREVES OF VISCOSITE REGUELATOERS FOR VISCOSE TECHNICAL TENSID CONCENTRATES | |
GB699664A (en) | Trihydroxy polyoxyalkylene ethers of glycerol | |
GB406443A (en) | Improvements in the manufacture and production of polymerisation products | |
GB978753A (en) | Process for oxyalkylating polyols | |
GB802688A (en) | Improvements in or relating to organo-silicon compounds | |
GB1073880A (en) | Process for the preparation of polytrimethylene glycol | |
US3462520A (en) | Phosphate esters of alkoxylated straight-chain primary alcohols | |
GB1040783A (en) | Polyethers | |
GB778239A (en) | Trihydroxy polyoxyalkylene ethers of glycerol | |
GB935424A (en) | Polyether compositions and a process for their preparation | |
GB1267259A (en) | ||
EP0095562B1 (en) | Catalysts for alkoxylation reactions | |
GB1320676A (en) | Process for the preparatioj of surface-active ether- and poly-ether sulphates | |
ES8505715A1 (en) | Use of polyglycol ethers as foam depressing additives in low-foaming cleansing agents. | |
GB802642A (en) | Surface-active agents | |
DE1236478B (en) | Antifoam agents | |
GB889571A (en) | Method and composition for chemically polishing and descaling metal | |
GB834668A (en) | Polyoxyalkylene products | |
US2915559A (en) | Alkylphenoxypolyoxyglycol nonionic surface-active agents | |
US3332980A (en) | Aryl polyalkyleneoxy carbonates | |
GB1027481A (en) | Crystalline mixtures of capillary active salts and processes for preparing same | |
RU2019102607A (en) | REDUCED SPRAY DRIP | |
CN114524931B (en) | Block polyether with methanol as initiator and synthesis method | |
GB777978A (en) | Trihydroxy polyoxyalkylene ethers of glycerine | |
GB1021180A (en) | Treatment of polyether or polyether-ester capillary active products |