GB941156A - Monomeric dicarboxylic acids containing amide linkages - Google Patents
Monomeric dicarboxylic acids containing amide linkagesInfo
- Publication number
- GB941156A GB941156A GB4293861A GB4293861A GB941156A GB 941156 A GB941156 A GB 941156A GB 4293861 A GB4293861 A GB 4293861A GB 4293861 A GB4293861 A GB 4293861A GB 941156 A GB941156 A GB 941156A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dicarboxylic acids
- acids containing
- formula
- amide linkages
- containing amide
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/44—Polyester-amides
-
- 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
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/685—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen
- C08G63/6854—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6856—Dicarboxylic acids and dihydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Monomeric bis-amidocarboxylic acids of the formula:-<FORM:0941156/C2/1> wherein n represents an integer of from 1 to 4 and each R is a C5-10 polymethylene group, are prepared by adding an acid of the formula HOOC (CH2)n COOH to an aqueous solution of a diamine of the formula:- <FORM:0941156/C2/2> until a pH of from 7.1 to 7.4 is reached, recovering the resulting precipitated salt derived from two molecules of acid and one molecule of diamine, and eliminating water from said salt to obtain the required amide, e.g. by heating under reduced pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7609560A | 1960-12-16 | 1960-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB941156A true GB941156A (en) | 1963-11-06 |
Family
ID=22129895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4293861A Expired GB941156A (en) | 1960-12-16 | 1961-11-30 | Monomeric dicarboxylic acids containing amide linkages |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE611607A (en) |
CH (1) | CH518904A (en) |
GB (1) | GB941156A (en) |
NL (1) | NL272541A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054610A (en) | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
US5929274A (en) | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
US6013835A (en) | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
-
0
- NL NL272541D patent/NL272541A/xx unknown
-
1961
- 1961-11-30 GB GB4293861A patent/GB941156A/en not_active Expired
- 1961-12-12 CH CH1440961A patent/CH518904A/en not_active IP Right Cessation
- 1961-12-15 BE BE611607A patent/BE611607A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL272541A (en) | |
BE611607A (en) | 1962-06-15 |
CH518904A (en) | 1972-02-15 |
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