GB568977A - Improvements in or relating to polyamide compositions - Google Patents
Improvements in or relating to polyamide compositionsInfo
- Publication number
- GB568977A GB568977A GB4324/42A GB432442A GB568977A GB 568977 A GB568977 A GB 568977A GB 4324/42 A GB4324/42 A GB 4324/42A GB 432442 A GB432442 A GB 432442A GB 568977 A GB568977 A GB 568977A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amido
- polyamides
- tertiary
- adipamide
- per cent
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyamides (AREA)
Abstract
Polyamide compositions are prepared by heating at temperatures above 180 DEG C., but below the decomposition temperature, until homogeneity is obtained, a melt comprising a synthetic linear polyamide wherein the majority of the amido groups are secondary and which has an intrinsic viscosity of at least 0.4, and at least one further synthetic linear polyamide in which at least 50 per cent of the amido groups are tertiary, the lateral substituents on its amido nitrogens being hydrocarbon groups attached to the nitrogens through aliphatic carbon atoms, and which has an intrinsic viscosity of at least 0.2, the polyamides being blended in such proportions that from 1 per cent to 50 per cent of the amido groups in the resulting composition are tertiary. The tertiary amido polyamides appear to function as plasticizers for the secondary amido polyamides. Homogeneity is generally reached in a period of from 5 to 60 minutes after complete fusion has been effected, and some amide interchange probably takes place during heating. Many starting polyamides are specified, and examples are given of the preparation of blends from: (1) poly-N : N1-dimethylhexamethylene adipamide and polyhexamethylene sebacamide; (2) poly - N : N1 - diethylhexamethylene adipamide and the interpolymerization product of hexamethylenediammonium adipate, hexamethylenediammonium sebacate, and epsilon-aminocaproloctam; and (3) polyhexamethylene adipamide and the interpolymerization product of N : N1 - dimethylhexamethylenediammonium adipate and hexamethylenediammonium adipate. The products can be formed into fibres, films, or other articles, and they exhibit improved receptivity for many dyestuffs. Specifications 461,236, 461,237, 474,999, 501,527, 535,138 and 562,370, and U.S.A. Specifications 2,130,523 and 2,193,529 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US568977XA | 1941-04-11 | 1941-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB568977A true GB568977A (en) | 1945-04-30 |
Family
ID=22007227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4324/42A Expired GB568977A (en) | 1941-04-11 | 1942-04-01 | Improvements in or relating to polyamide compositions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB568977A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114269872A (en) * | 2019-08-20 | 2022-04-01 | 3M创新有限公司 | Film including mixed solvent barrier and primer layer |
-
1942
- 1942-04-01 GB GB4324/42A patent/GB568977A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114269872A (en) * | 2019-08-20 | 2022-04-01 | 3M创新有限公司 | Film including mixed solvent barrier and primer layer |
CN114269872B (en) * | 2019-08-20 | 2023-12-29 | 3M创新有限公司 | Film comprising a mixed solvent barrier and a primer layer |
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