| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b94baf1aad802afc19b0e63b4499b04d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F14-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F14-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F14-00 |
| filingDate |
1989-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed517efbaf0fa21dfd5ec37699124671
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa58a186ccd9b41ec7284019c9b74edd |
| publicationDate |
1991-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5006607-A |
| titleOfInvention |
Dispersant system for making polyvinyl chloride which produces low color chlorinated polyvinyl chloride |
| abstract |
Chlorinated polyvinyl chloride (CPVC) is prepared from polyvinyl chloride (PVC). When PVC is made utilizing polyvinyl alcohol, the low molecular weight CPVC compound so prepared is colored. A low molecular weight CPVC compound prepared from PVC that was made in the presence of a cellulose ether instead of polyvinyl alcohol resulted in a very low color compound having a DE of O by definition. However, a CPVC compound prepared from PVC made in the presence of polyvinyl alcohol resulted in a relatively high color (DE 18.51). During the polymerization of vinyl chloride, polyvinyl alcohol is replaced with the hydroxypropylmethyl cellulose ether having a methoxyl substitution of 15-35 percent and a hydroxypropoxyl substitution of from 4-35 percent. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018523719-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004048945-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11466103-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10487157-B2 |
| priorityDate |
1989-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |