http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3642702-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8efbae6056f7ee0275c50b0f1e7243be |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-866 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 |
| filingDate | 1969-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8b1b4f621e8e0f1df08c13e1bfeb43b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f53fed0e5e45b5050a62cfb0353179e |
| publicationDate | 1972-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3642702-A |
| titleOfInvention | Stibinic and stibonic catalysts for polyethylene terephthalate |
| abstract | A PROCESS FOR PREPARING POLYETHYLENE TEREPHTHALATE WHEREIN DIMETHYL TEREPHTHALATE IS REACTED WITH ETHYLENE GLYCOL TO FORM AN ESTER OF ETHYLENE GLYCOL AND TEREPHTHALIC 0.96 BASED ON ONE MOLE OF SAID PREPOLYMERS, WHILE TH MOLE RATIO OF WATER BEING EQUAL TO A LEAST TWO TIME AS MUCH AS 1 MINUS THE MOLE RATIO OF SAID DIAMINES NAMELY 0.08 TO 0.40, BASED ON ONE MOLE OF SAID PRE POLYMERS, THE CHAIN EXTENDING REACTION BEING EFFECTED BY ADDING THE PREPOLYMER SOLUTION INTO THE SOLUTION OF CHAIN EXTENDERS, AND AFTER THE CONTENT OF ISOCYANATE GROUP IN THE REACTION MEDIUM HAS FALLEN SUBSTANTIALLY TO ZERO (B) BY HEATING THE REACTION MIXTURE AT 60*C. TO 85*C FOR 5 TO 30 HOURS WITH STIRRING. THE ELASTIC POLYURETHANE PRODUCTS PREPARED FROM TH SOLUTIONS HAVE GOOD MECHANICAL PROPERTIES, HIGH ELASTI RECOVERY AND IMPROVED STABILITIES AGAINST LIGHT, BLEACHING. |
| priorityDate | 1969-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.