http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1175207-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97f8939cf76e68731c5704c708ac7a89 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61J3-071 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-1635 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C45-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D99-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61J3-07 |
| filingDate | 2000-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22cb66a12ea44b5984012c14f4175d7f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_603722c1e854884a81d2a914d73e4b26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dba612a90f80205cf60d9db554fae973 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f82cf640fc8a22bb26c022c0603bbc90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df912a8dcaf16f6bc93d341311cc3ace http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b11089d403d1700fa576f328488bc271 |
| publicationDate | 2002-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1175207-A1 |
| titleOfInvention | Injection molding method for (meth)acrylate copolymers having tertiary ammonium groups |
| abstract | The invention relates to a process for making molded articles by means of injection molding with the process steps of a) melting of a (meth)acrylate copolymer, which is composed of 30 to 80 wt % of radical-polymerized C1 to C4 alkyl esters of acrylic or methacrylic acid and 70 to 20 wt % of (meth)acrylate monomers with a tertiary ammonium group in the alkyl residue, wherein the (meth)acrylate copolymer is present in a mixture with 1 to 70 wt % of a plasticizer and a desiccant in the ratio of 1:1 to 1:20 and also with 0.05 to 5 wt % of a release agent, and further standard additives or adjuvants and if necessary even a pharmaceutical active principle can also be present in the mixture, and before the mixture is melted it has a content of more than 0.5 wt % of low-boiling constituents with a vapor pressure of at least 1.9 bar at 120° C., b) degassing of the mixture in the thermoplastic condition at temperatures of at least 120° C., whereby the content of low-boiling constituents with a vapor pressure of at least 1.9 bar at 120° C. is lowered to at most 0.5 wt % and c) injection of the melted and degassed mixture into the mold cavity of an injection-molding die, wherein the mold cavity has a temperature which lies at least 10° C. below the glass transition temperature of the (meth)acrylate copolymer, cooling of the melt mixture and removal of the obtained molded article from the mold. |
| priorityDate | 1999-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 144.