GB1246678A - Polymerising lactones - Google Patents
Polymerising lactonesInfo
- Publication number
- GB1246678A GB1246678A GB5436868A GB5436868A GB1246678A GB 1246678 A GB1246678 A GB 1246678A GB 5436868 A GB5436868 A GB 5436868A GB 5436868 A GB5436868 A GB 5436868A GB 1246678 A GB1246678 A GB 1246678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lactones
- polyesters
- catalyst
- polyurethanes
- polyester
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
1,246,678. Polymerized lactones and polyurethanes obtained therefrom. LAPORTE CHEMICALS Ltd. 13 Feb., 1970 [15 Nov., 1968], No. 54368/68. Addition to 1,201,909. Heading C3R. Polyesters are made by polymerizing certain lactones in the presence of an amino or hydroxyl compound as an initiator and a catalyst comprising an organic carboxylic or sulphonic acid having a pKa value less than 2À0 at 25‹ C. and removing the catalyst from the thus formed polyester by absorbing it on to a basic ion exchange resin. The lactones are of a formula where X is -(CR 2 )nwhere n is 4-7, and R is methyl, ethyl, n-propyl, or isopropyl groups or hydrogen, chlorine or bromine atoms. The polyesters may be neutralized by concurrent or subsequent treatment with an acidic ionexchange resin. Polyurethanes are made by reacting the polyester with a polyisocyanate, e.g. di-(4-isocyanatophenyl) methane and an organic compound having at least two active hydrogen atoms bonded to nitrogen or oxygen, e.g. butan-1,4-diol. Reference has been directed by the Comptroller to Specifications 859,645 and 859,642.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5436868A GB1246678A (en) | 1968-11-15 | 1968-11-15 | Polymerising lactones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5436868A GB1246678A (en) | 1968-11-15 | 1968-11-15 | Polymerising lactones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1246678A true GB1246678A (en) | 1971-09-15 |
Family
ID=10470779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5436868A Expired GB1246678A (en) | 1968-11-15 | 1968-11-15 | Polymerising lactones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1246678A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2030992A1 (en) * | 2006-06-02 | 2009-03-04 | Tohcello Co., Ltd. | Method for producing unsaturated carboxylic acid-modified vinyl alcohol polymer, and gas barrier film or gas barrier laminate using the same |
-
1968
- 1968-11-15 GB GB5436868A patent/GB1246678A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2030992A1 (en) * | 2006-06-02 | 2009-03-04 | Tohcello Co., Ltd. | Method for producing unsaturated carboxylic acid-modified vinyl alcohol polymer, and gas barrier film or gas barrier laminate using the same |
EP2030992B1 (en) * | 2006-06-02 | 2013-10-23 | Tohcello Co., Ltd. | Method for producing unsaturated carboxylic acid-modified vinyl alcohol polymer, and gas barrier film or gas barrier laminate using the same |
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