| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97f8939cf76e68731c5704c708ac7a89 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-1804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-18 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18 |
| filingDate |
2004-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d134e8f5a0f22923ee6b36b19e1954a8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e45d5ad8f12de76b0c2a185cd6f9955
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10c6007f3b92f5d7dc288c167aec4731
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67cedf40d54f54e582a09254cbfbcf96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c7a5848d27b87b061a08f6d44e83594 |
| publicationDate |
2006-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1658318-A1 |
| titleOfInvention |
Method for the synthesis of copolymers for producing polymethacrylimides |
| abstract |
The invention relates to a method for producing polymethacrylimides in two steps: 1) radical copolymerization of (meth)acrylamides (A, (Me,H)HC=CHCONHR2) and alkyl(meth)acrylic esters (B) and optionally further ethylenically unsaturated monomers in the presence of an aqueous solvent. The monomers (A) include, in addition to acrylamide and methacrylamide, (meth)acrylamides that are substituted on their nitrogen group (R2 <> H). The monomers (B) are the (meth)acrylic esters of secondary or tertiary alcohols, preferably tert. butylmethacrylate. 2) Thermal or catalytic reaction of the copolymers produced in 1) to polymethacrylimide or for R2 <> H to N-substituted polymethacrylimides while alkenes are separated. |
| priorityDate |
2003-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |