http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3912690-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f5303775a002948cc8751528d136c6ba |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-668 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2615 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-668 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-42 |
| filingDate | 1970-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1975-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_856171d422a4571122efa1b6b08db5e3 |
| publicationDate | 1975-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3912690-A |
| titleOfInvention | Method for producing a shellac substitute and product |
| abstract | Alcohol soluble polymeric sealant vehicles are produced synthetically by reaction of a polyol having at least three reactive hydroxyl groups with at least one aromatic acid anhydride, the latter class in not more than stoichiometric relation to the hydroxyls of the polyol, opening the anhydride ring thereof by partial esterification without water formation at temperatures below the esterification range. Thereafter, free carboxyl groups then present are predominantly esterified by further reaction with at least one epoxide monomer preferably having both an epoxy group and another functional group. The latter epoxide combination most often includes as a part thereof reactant monomers containing as the sole functional group one epoxide group, monomers containing two epoxide groups, and monomers containing an epoxide group and a reactive hydroxyl group. In any event, selection and stoichiometric relation of the reactants in the final polymer are such that the final unreacted hydroxyl percent by weight of the completed polymer is at least eight percent to provide requisite alcohol solubility. These polymers are further unusual in that they are of relatively uniform and pre-calculatable molecular weight. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4097466-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4097465-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4622349-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4874798-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4814361-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4091001-A |
| priorityDate | 1970-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 74.