http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0656377-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-044 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-02 |
| filingDate | 1994-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1998-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b216ea1293e575903c1ca10a9f467ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3263cb8497115386da28d400dc37ae8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa8d2605407748deb64525d97fcdc76b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4933e28e8cb34eba05948f92b190faef |
| publicationDate | 1998-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0656377-B1 |
| titleOfInvention | Tapered block copolymers of monovinylarenes and conjugated dienes |
| abstract | A copolymer is prepd. in a reaction zone by: (a) introducing a monovinylaromatic monomer and an initiator in the presence of a randomiser and polymerising until no free monomer is present; (b) adding an initiator and a monovinylaromatic monomer and polymerising until no free monomer is present; (c) adding a mixt. of monovinylaromatic monomer and conjugated diene and polymerising until no free monomer is present; (d) adding a mixt. of monovinylaromatic monomer and conjugated diene monomer and polymerising until no free monomer is present; (e) adding a conjugated diene monomer and allowing complete polymerisation to occur until no free monomer is present; and (f) adding a coupling agent. Only two initiator charges are present and are added in steps (a) and (b). Also claimed are (i) polymodal copolymers produced by the method; (ii)-articles made from the copolymers, and (ii) a polymodal coupled block copolymer having chains resulting from coupling; S-S-B/S-B/S-B-Li S-B/S-B/S-B-Li S = monovinyl aromatic block; B = conjugated diene block; B/S = tapered B and S block; and Li = living polymer or coupling site. |
| priorityDate | 1993-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 244.