http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2059406-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e99ae918639051d313e1629f4113b12c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M37-0069 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C41-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-0092 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-0024 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K33-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L31-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C39-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C41-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-28 |
| filingDate | 1992-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1996-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9df42de1dabd168e368d121b70e1649 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6f87e162a870d32b458c5d3bcde1bd6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_daab40282bceab6cd0a477e0524178bb |
| publicationDate | 1996-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2059406-C |
| titleOfInvention | Preparation of homogeneous hydrogel copolymers |
| abstract | A method is provided for the preparation of homogeneous copolymers having a predetermined equilibrium water content (EWC) value formed by the addition polymerization of a mixture of ethylenically unsaturated monomer A and ethylenically unsaturated monomer B, for example, 2-hydroxyethyl methacrylate and hydroxypropyl methacrylate. The method requires determining the EWC values of the hydrogel homopolymer of hydrophilic monomer A (homopolymer A) and the hydrogel homopolymer of hydrophilic monomer B (homopolymer B); determining the relationship of the EWC values of the homogeneous copolymers AB versus the chemical composition of said copolymers AB; selecting the targeted EWC value and determining the chemical composition of copolymer AB having the targeted EWC value; forming a polymerizable mixture of monomer A and monomer B in amounts sufficient to yield copolymer AB having the targeted EWC value; and effect the polymerization reaction to yield copolymer AB characterized by the targeted EWC value. A method is also provided for the preparation of a delivery device including a drug contained in the reservoir of the hydrogel of copolymer AB, said device being characterized by its capability of eluting or releasing the drug through the hydrogel membrane to a delivery environment at a predetermined rate. There is also disclosed a sterilized kit containing a trocar or hypodermic needle/syringe and the aforesaid drug delivery device having a cylindrical shape with a rounded or bullet-like extremity. |
| priorityDate | 1992-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 318.