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classificationCPCAdditional http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20
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http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-48
filingDate 1993-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37d6cfa3c4c80f81223e897f870309d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_675e63fd17fc0236e1c0676bfc39f62b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_976652f81f3af7874120ca3d3e3437ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a10cfb1c7830ae2b60ec66c699b2c8b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_787d49f20eaa2d80a122daff5407a06f
publicationDate 1994-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber EP-0581177-A1
titleOfInvention Process for the imidization of polymers based on esters of acrylic and methacrylic acid
abstract R¹ und R² für Wasserstoff oder Methyl stehen und R³ C₁-C₁₈-Alkyl, C₅-C₁₂-Cycloalkyl, C₆-C₁₀-Aryl, C₆-C₁₀-Aryl-C₁-C₄-alkyl bedeutet, wobei diese Reste mit Ausnahme der C₁-C₁₈-Alkylreste bis zu dreifach mit Resten ausgewählt aus der Gruppe bestehend aus C₁-C₄-Alkyl, C₁-C₄-Alkoxy und Halogen substituiert sein können, durch Umsetzen eines Polymeren auf Basis von C₁-C₂₀-Alkylestern der Acrylsäure, Methacrylsäure oder Mischungen davon mit Ammoniak oder einem primären Amin in einem Extruder, indem man den Ammoniak oder das primäre Amin mit einer Schmelze des umzusetzenden Polymeren bei einer Temperatur von höchstens 250°C intensiv vermischt, bevor man die Imidierung durchführt, sowie die Verwendung der nach diesem Verfahren hergestellten Polymerisate zur Herstellung von thermoplastischen Formkörpern, Folien oder Fasern, sowie Formkörper, Folien oder Fasern aus diesen Polymerisaten.Preparation of a polymer essentially comprising units of the formula I. in the R1 and R2 represent hydrogen or methyl and R³ C₁-C₁₈-alkyl, C₅-C₁₂-cycloalkyl, C₆-C₁₀-aryl, C₆-C₁₀-aryl-C₁-C₄-alkyl means, these radicals with the exception of the C₁-C₁₈-alkyl radicals up to three times with radicals selected from the group A group consisting of C₁-C₄-alkyl, C₁-C₄-alkoxy and halogen can be substituted, by reacting a polymer based on C₁-C₂₀ alkyl esters of acrylic acid, methacrylic acid or mixtures thereof with ammonia or a primary amine in an extruder, by mixing the ammonia or the primary amine with a melt of the polymer to be reacted at a temperature of at most 250 ° C intensively mixed before carrying out the imidation, and the use of the polymers prepared by this process for the production of thermoplastic moldings, films or fibers, and moldings, films or fibers made from these polymers.
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priorityDate 1992-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date>
type http://data.epo.org/linked-data/def/patent/Publication

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