| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04650c4315071ee8af7d26e3441a53b1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-00 |
| filingDate |
1973-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1975-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf9602dc33e484c9ad39f674a3db0a9e |
| publicationDate |
1975-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3862090-A |
| titleOfInvention |
Process for producing oxymethylene copolymers |
| abstract |
A catalyst system for the production of oxymethylene copolymers with improved thermal stability and improved hydrolysis resistance and a process for the production of such oxymethylene copolymers are disclosed and claimed herein. The catalyst system comprises a non-complexed mixture of a Lewis acid polymerization catalyst and a non-acidic organo tin compound having at least one direct chemical bond from said tin atom to an atom selected from the group consisting of oxygen and sulfur. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4405497-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4686201-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4399272-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3035138-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6207296-B1 |
| priorityDate |
1971-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |