http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5280071-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a526baeaf0a6e90f4a91d4dbfd619756 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L7-00 |
| filingDate | 1991-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4417fa93c39bbbc1a7a0428bd175f281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4bdf1c76f1daaacb0d168125f225b32d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed8f932ef23c6fb135d4061e7bbdf181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ffbc946a50e186d96fa7cbf9efcacdf |
| publicationDate | 1994-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5280071-A |
| titleOfInvention | High molecular weight amine containing antiozonants |
| abstract | The present invention relates to a composition which exhibits antiozonant activity in diene containing rubbers comprising the reaction product of a multi-step process comprising: (1) reacting under condensation conditions an aldehyde and an amine containing compound to form a condensation product, wherein said aldehyde is selected from the group consisting of formaldehyde, acetaldehyde or mixtures thereof; and said amine containing compound is selected from the group consisting of: N,N'-di-substituted-p-phenylene diamines of the structural formula: (* CHEMICAL STRUCTURE *) wherein R1 and R2 are independently selected from the group of radicals consisting of alkyls having 3 to 12 carbon atoms, aryls having 6 to 12 carbon atoms and aralkyls having 7 to 12 carbon atoms; and wherein said condensation conditions include: (i) the presence of an acid catalyst, (ii) a mole ratio of aldehyde to amine containing compound ranging from about 1.01:2 to 2:1, and (iii) said amine containing compound is dissolved in an organic solvent; (2) removing water from said condensation product; (3) adjusting the pH of the condensation reaction product to above 7 to form a basic reaction mixture; (4) filtering off neutralized catalyst to form a solvent reaction mixture; (5) heating said solvent reaction mixture under vacuum to a temperature ranging from about 110 degrees C. to 250 degrees C.; (6) isolating from the heated solvent reaction mixture the reaction product which exhibits antiozonant activity in diene containing rubbers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5726248-A |
| priorityDate | 1991-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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