GB1410005A - Polyamide - Google Patents
PolyamideInfo
- Publication number
- GB1410005A GB1410005A GB4296771A GB4296771A GB1410005A GB 1410005 A GB1410005 A GB 1410005A GB 4296771 A GB4296771 A GB 4296771A GB 4296771 A GB4296771 A GB 4296771A GB 1410005 A GB1410005 A GB 1410005A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diamine
- methyl
- residues
- acids
- 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
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
1410005 Polyamides BP CHEMICALS INTERNATIONAL Ltd 15 Sept 1972 [15 Sept 1971] 42967/71 Heading C3R A polyamide contains acid residues, more than 80 mol. per cent of which are residues of an aromatic or alicyclic acid wherein n = 0 or 1 and the ring is unsubstituted or substituted by methyl, and amine residues which comprise residues of (I) between 10 and 80 moles per cent of optionally methyl-substituted m- or p-xylylene diamine and (II) over 20 and up to 90 moles per cent of an aliphatic diamine wherein q, s, t, u and w are integers totalling not more than 14 and R<SP>1</SP> to R<SP>4</SP> are each H or methyl with at least 2 on the same carbon atom being methyl. It may also contain up to 30 mol. per cent of (III) residues of a diamine wherein R 5 and R 6 are H or methyl and x+y+z #12. It is preferred that not more than 10 mol. per cent of residues of any other diamine is present. Specified acids are terephthalic, 1,4- phenylene diacetic and 1,4-cyclohexane dicarboxylic and diacetic acids as the essential acids, and adipic, suberic, sebacic, dodecane dioic, isophthalic, 1,2- or 1,3-cyclohexanol dicarboxylic or diacetic, and 1,2- or 1,3-phenylene diacetic acids as optional acids. Specified diamines are (II) 2,2,4- and 2,4,4-trimethyl hexamethylene diamine, 2,2,7,7-tetramethyl octamethylene diamine and 2,2-dimethyl pentamethylene diamine, and (III) hexa- and dodecamethylene, 5-methyl nonane 2-methyl pentamethylene, and 2- or 3-methyl or 2,5-dimethyl hexamethylene diamines. Up to 10 mol. per cent of residues of amino-acids or their lactams may also be present, e.g. capro- or lauro-lactam or #-amino hexanoic, undecanoic or dodecanoic acids. Conventional additives such as stabilizers, e.g. the stearyl ester of 3-(4-hydroxy-3,5-di-tbutylphenyl) propionic acid, triphenyl, diethyl hexyl or trisnonyl phosphite or ammonium hypophosphite, and plasticizers, e.g. N-butyl benzene sulphonamide, may be incorporated with the polymer during or after its preparation. In all the specific examples the acid is terephthalic, diamine (I) is a mixture of 70% meta, 30% para-xylylene diamines and (II) is a 50/50 mixture of 2,2,4- and 2,4,4-trimethyl hexamethylene diamines; some also include units of hexa- or dodeca-methylene diamine or caprolactam. It is stated that the selected combination of acid and amine residues in the specified proportions provides polyamides having a high impact strength, generally of at least 44 k JM<SP>-2</SP> while retaining good overall mechanical properties. Reference is made to Specifications 905,475; 1,176,985; 1,225,483 and 1,128,761.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4296771A GB1410005A (en) | 1971-09-15 | 1971-09-15 | Polyamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4296771A GB1410005A (en) | 1971-09-15 | 1971-09-15 | Polyamide |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1410005A true GB1410005A (en) | 1975-10-15 |
Family
ID=10426757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4296771A Expired GB1410005A (en) | 1971-09-15 | 1971-09-15 | Polyamide |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1410005A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010520A1 (en) * | 1978-10-18 | 1980-04-30 | Ciba-Geigy Ag | Substituted derivatives of 11-amino-undeca-4,8 dienals and 11-amino undecanals and process for their preparation |
US20220064377A1 (en) * | 2019-01-22 | 2022-03-03 | Mitsubishi Gas Chemical Company, Inc. | Polyamide resin, composition, and molded article |
-
1971
- 1971-09-15 GB GB4296771A patent/GB1410005A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010520A1 (en) * | 1978-10-18 | 1980-04-30 | Ciba-Geigy Ag | Substituted derivatives of 11-amino-undeca-4,8 dienals and 11-amino undecanals and process for their preparation |
US4355177A (en) | 1978-10-18 | 1982-10-19 | Ciba-Geigy Corporation | Substituted 11-amino-undeca-4,8-dienal and 11-amino-undecanal derivatives and processes for their preparation |
US20220064377A1 (en) * | 2019-01-22 | 2022-03-03 | Mitsubishi Gas Chemical Company, Inc. | Polyamide resin, composition, and molded article |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |