| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_34fbeb1e614ea098731393cc639cd372 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L95-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L95-00 |
| filingDate |
2000-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3abee50b1709446db018d382dc61f5e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee1d26078735a26d0b9dbd72852ed56d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_474f25d8aaaa03665d6449d4669a9bd9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f218043cdc8dfecac5d4069528e50765 |
| publicationDate |
2002-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6441065-B1 |
| titleOfInvention |
Method for preparation of stable bitumen polymer compositions |
| abstract |
The present invention provides a method for preparing an asphalt and thermoplastic elastomer composition. The process comprises preparing a crosslinking elastomer concentrate that is added to a heated asphalt cut in a stirred tank and then aged to improve SHRP high temperature grading. The crosslinking elastomer concentrate is prepared by adding thermoplastic elastomer and crosslinking agents to a suitable carrier oil, preferably an aromatic oil such as Hydrolene H series. This concentrate is maintained at a temperature that promotes association between the crosslinking agents and the elastomer for a time sufficient for association to substantially complete. In one embodiment, the associating time is in excess of 2 hours up to 24 hours. The asphalt is heated to a temperature sufficient to allow the stirring of the asphalt in the tank. The crosslinking thermoplastic elastomer concentrate is added to the asphalt while continuing to stir the asphalt. The mixture is stirred at a speed and for a period of time sufficient to increase the distribution of the elastomer into the asphalt. Stirring is continued for a period of time sufficient to improve the distribution of the crosslinking thermoplastic elastomer in the asphalt. The composition is then aged as a liquid for 12 to 48 hours to increase the SHRP high temperature grade. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005065177-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11401449-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8664302-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011015311-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006116449-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010222464-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005101702-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005101701-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7202290-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9422407-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7998265-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-RE41167-E
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-RE42165-E
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010187718-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004171787-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005145137-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7341624-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006122292-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7439286-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6727299-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7144933-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006081152-A1 |
| priorityDate |
1999-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |