http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-443888-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-805 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 |
| filingDate | 1975-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-443888-A1 |
| titleOfInvention | A PROCEDURE FOR THE PREPARATION OF A HIGH MOLECULAR WEIGHT AROMATIC COPOLIAMIDE. |
| abstract | A method of preparing a high molecular weight, fiber or film forming aromatic copolyamide consisting essentially of (1-A) a repeating diamine unit as follows **(See formula)** wherein Y1 is at least one group selected from the class consisting of -O-, -S-, -SO2-, (see formula), -NH-, -CH2- and (see formula), (1-B) a repeating unit of diamine of the following formula -HN-Ar1-NH- (1-B) wherein Ar1 represents a phenylene group, a naphthylene group, a biphenylene group or a group of the formula **(See formula)** wherein Y2 has the same definition as Y1 and is identical or different from Y1, with all of said groups having their binding chains extending in a coaxial or parallel direction, and (2) a repeating unit of the dicarboxylic acid type of the following formula: -OC-Ar2-CO- (2) wherein Ar2 has the same definition as Ar1, and is identical or different from Ar1, the total number of moles of the diamine repeating units of formulas (1-A) and (1-3) being substantially equal to the number of moles of the repeating unit of the dicarboxylic acid type, of formula (2), and the proportion of the repeating units of diamine (1-A) of 7.5 to 40 mol% of the total of the repeating units, which comprises reacting (1-a) at least one diamine of the following formula **(See formula)** where Y1 is the same as defined above, n and m, identical or different, are 0 or 1, and X is a halogen atom, and (1-b) at least one aromatic dismin of the following formula (HX) n.H2h-Ar1-NH2 (HX) m (1-B) wherein Ar1 is the same as defined above, with (2) at least one aromatic dicarboxylic acid halide of the following formula: **(See formula)** wherein Ar2 is the same as defined above, such that the total number of moles of aromatic diamines (1-a) and (1-b) is substantially equal to the number of moles of aromatic dicarboxylic acid halide (2'), and the aromatic diamine (1-a) is used in an amount of 7.5 a mole, based on the total amount of the diamines (1-a) and (1-b) and the dicarboxylic acid halide (2'). (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1974-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.