| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a6c215025760c6c426fe4bfbd118d070 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F12-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-0045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-039 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-12 |
| filingDate |
2003-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e0fff89db34e5ea7e1b3890f996e7ee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be101a42b0e71e9efbab947f760c535c |
| publicationDate |
2003-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-03089482-A1 |
| titleOfInvention |
Preparation of homo-, co- and terpolymers of substituted styrenes |
| abstract |
A novel one-pot cost efficient process for the preparation of homo-, co- and terpolymers of p-hydroxystyrene or substituted p-hydroxystyrene and alkyl acrylates. The process involves polymerization of esters of p-hydroxystyrene (or its substituted analogs), alkyl acrylate monomers and/or one or more of ethylenically unsaturated monomers in an alcohol solvent in the presence of a free radical initiator. The reaction mixture containing the so formed polymer is subjected to transesterification conditions using a catalytic amount of catalyst to result in co-and/or terpolymers of p-hydroxystyrene without cleavage of the alkyl ester in the acrylate repeat unit, and then removing the catalyst from the system. Preferred embodiments include homopolymers of p-hydroxystyrene, copolymer of p-hydroxystyrene and tert-butyl acrylate and terpolymer of p-hydroxystyrene, tert-butyl acrylate and styrene. These polymers have a wide variety of applications including as photoresists in microelectronics industry. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006088147-A1 |
| priorityDate |
2002-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |