http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6011131-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f76aab74ed312003383a8600e2edbd5b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-34 |
| filingDate | 1998-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-01-04^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35618f34a8e5158d3a503d41ddd9fb6e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e06ec2f7a92f72441a756529ef530b45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d2334a549f52e97bf6cb824fbcf5d0a4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66cb090249e5ff464a06098bd6eaa2e8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b8781dc7e93b3c7a4d2d03974987ac67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be1f35728d40e5902ca6c5145f8ac8ef |
| publicationDate | 2000-01-04^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6011131-A |
| titleOfInvention | Process for the preparation of polyamides |
| abstract | Process for the preparation of polyamides comprising the steps of A) reacting a soybean oil condensate obtained from the deodorization of refined soybean oil and which contains less than 30% by weight of free and esterified oleic acid based on the total weight of free and esterified fatty acids in said condensate, with a C 1-4 alkanol in the presence of a zinc oxide catalyst to convert free fatty acids and fatty acid glyceride esters to fatty acid C 1-4 alkyl esters; n B) removing excess C 1-4 alkanol, volatile reaction by-products, water, and the zinc oxide catalyst from the resulting reaction mixture; n C) heating the reaction mixture from step B) under vacuum to obtain a distillate of fatty acid C 1-4 alkyl esters; n D) separating the distillate from step C) into a fraction containing mostly C 16-18 saturated fatty acid C 1-4 alkyl esters and a second fraction containing mostly C 16-18 unsaturated fatty acid C 1-4 alkyl esters wherein the oleic acid C 1-4 alkyl ester content is less than about 35% by weight thereof; n E) dimerizing said second fraction in the presence of montmorillonite clay; and n F) reacting the dimerized second fraction with a polyamine. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6479684-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103865508-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103865508-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7452702-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015091522-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2886581-A1 |
| priorityDate | 1998-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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