http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-361394-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bba842fc4d37dfcaced1b55bc0c91c7c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-83 |
| filingDate | 1968-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1970-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-361394-A1 |
| titleOfInvention | PROCEDURE FOR THE PREPARATION OF POLYESTERS. |
| abstract | In a process for making polyesters from one or more aromatic and/or aliphatic dicarboxylic acids, and aliphatic and/or cycloaliphatic and/or aromatic dihydric alcohols, there is used a catalyst comprising mixtures and/or an alloy or alloys of (a) Sb, (b) Sn and/or Pb, (c) Cd and/ or Mn. The catalyst preferably contains 10- 80% by weight, of (a), 10-80% by weight of (b) and 5-70% by weight of (c). In the examples, polyesters are made from (i) dimethyl telephthalate and ethyleneglycol, with or without dimethyl isophthalate or the bis-glycol ether of bis-phenol A and pentaerythritol or (ii) dimethyl terephthalate and 1,4 - bis - (hydroxymethyl)- cyclohexane. |
| priorityDate | 1967-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.