| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31855
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31913
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31935
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31928
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-264 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F255-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F255-02 |
| filingDate |
1990-03-06^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-10-30^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55f2a9082f36b65775ec030bd6a3f46d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6895150ce1606d9fdbf07d436925c28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_392a501b709f8f4c0ca54731d34e1054 |
| publicationDate |
1990-10-30^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4966810-A |
| titleOfInvention |
Meleic anhydride graft copolymers having low yellowness index and films containing the same |
| abstract |
Maleic anhydride can be satisfactorily grafted to polymers at low pressures by feeding the polymer through a multiple screw extruder and injecting the maleic anhydride and a free radical initiator into the extruder. The maleic anhydride and initiator can be pre-mixed in a solvent solution. The solvent and unreacted maleic anhydride can be removed by low pressure devolatilization. The graft copolymer has a yellowness index as measured by ASTM D-1925-70 less than about 10.0 and as measured by ASTM E-313-73 less than about 11.0. Further, between 0.75 and 2.0 weight percent of the graft copolymer comprises maleic anhydride. The graft copolymer can further be blended with an olefinic polymer to yield adhesive thermoplastics suitable for use as food packaging multilayer coextruded films. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9120888-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5756659-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3205698-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2363444-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5705565-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2363420-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9321941-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2363445-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010160497-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6302321-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0786319-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10894852-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4342605-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9902882-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019190705-A1 |
| priorityDate |
1986-09-05^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |