| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2369-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-0555
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-16 |
| filingDate |
1988-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1989-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d8a1748f98473e611ac4eb613ba91e2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66a4e1fa29ff95d1729c94a065437140 |
| publicationDate |
1989-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4885407-A |
| titleOfInvention |
Method for recovering a dihydric phenol from a scrap polyester |
| abstract |
A method for recovering a dihydric phenol from scrap polyester which comprises n a. contacting an aromatic polyester selected from the group consisting of polycarbonate, copolyestercarbonate and a polyarylate with n (1) an aqueous ammoniacal solution of sufficient strength of sever the ester bonds of the aromatic polyester and n (2) an alkylchloride in which the polyester is at least partially soluble, n b. forming two mobile liquid phases, the top phase being aqueous and the bottom phase being the alkyl chloride and containing ammonium dihydric phenolate; n c. separating the top phase from the bottom phase; n d. recovering from the bottom phase the dihydric phenol. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9328046-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5336814-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5087768-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10065087-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5675044-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5705714-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2500662-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009170969-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7750057-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0816315-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0816315-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0816319-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0816319-A2 |
| priorityDate |
1988-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |