http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9858012-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_390be8b40737dd62f57f366e17a9af5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_169f37b7ac0c2f08a26de271d108cdc1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G79-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G79-04 |
| filingDate | 1998-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88d2d397766f9a32223ce4aec35bcc3f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dde55e9da71167d5a1d669cec2d1f905 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8532e05eb5b79069bacdc31341c6cc2c |
| publicationDate | 1998-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9858012-A1 |
| titleOfInvention | Two-stage solution polymerization of high molecular weight poly(phosphoesters) |
| abstract | A process for making a phosphoester polymer comprising the recurring monomeric units of formula (I), wherein X is -O- or -NR'-, where R' is H or alkyl; L is a divalent organic moiety; R' is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic, or heterocycloxy; and n is between about 25 to 2,000, is described. The process comprises the steps of: (a) polymerizing in the presence of a solvent p moles of a di-XH compound having formula (II): H - X - L - X - H wherein X and L are as defined above, with q moles, where p ≈ q, of a phosphorodihalo compound to form a polymer of formula (I) , wherein n is about 12 to 1,000, having a first molecular weight Mw1, wherein the solvent is present in an amount greater than about 5 ml of solvent per gram of compound of formula (II); (b) removing at least about 25 % of the solvent to form a more concentrated reaction mixture; and (c) further polymerizing the concentrated reaction mixture for an additional time sufficient to produce a polymer of formula (I) wherein n is between about 25 and 2,000, the polymer having a second molecular weight Mw2, which is significantly higher than Mw1. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SG-125885-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6548302-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6600010-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6485737-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7101568-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6641833-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6350464-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6537585-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6419709-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6479067-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6153212-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6322797-B1 |
| priorityDate | 1997-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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