| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0279ff9498853a03061efa5210de9496
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94e6fce19ba752216d61851e37713714
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c5665b0c565f0a37e8af810fba9f7484
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17D1-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17D1-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17D1-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-06 |
| filingDate |
2011-07-14^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9af27d7fa50786ac00cbc78ae962f16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf990c632eb8877db5741d7cba30b150
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_950761d8f753c7054b86603aa6f2155b |
| publicationDate |
2011-12-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2011319520-A1 |
| titleOfInvention |
Polyolefin Drag Reducing Agents Produced by Multiple Non-Cryogenic Grinding Stages |
| abstract |
Fine particulate polymer drag reducing agents (DRAs) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, e.g. non-porous poly(alpha-olefin) suitable for reducing drag in hydrocarbons may be achieved by the use of at least one liquid grinding aid and at least two grinding processors in series. The blades of the stators of the grinders are of different configuration so that granulated polymer fed to the first processor having relatively larger gaps between blades is ground to an intermediate size which is fed to the second processor having relatively smaller gaps between blades which grinds the polymer to a second, smaller size. A non-limiting example of a suitable liquid grinding aid includes a blend of propylene glycol, water and hexanol. Particulate DRA may be produced at a size of 300 microns or less in only two passes. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020251990-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11248748-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2809755-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2785043-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11098243-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109232779-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11199296-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019245874-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020034811-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2792053-C1 |
| priorityDate |
2007-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |