http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4315083-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a22da5b7dd6ed60a21538e5edb23e051 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F279-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F279-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F279-00 |
| filingDate | 1980-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_397201c27b08928e54c95c00e18f5f4c |
| publicationDate | 1982-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4315083-A |
| titleOfInvention | Process for the continuous mass polymerization of polyblends |
| abstract | The present invention relates to an improved process for the continuous mass polymerization of solutions comprising alkenyl aromatic monomers having about 1 to 10% by weight of a polybutadiene rubber dissolved therein, the steps comprising, (A) continuously charging said solution to a first reaction zone operating at about 10 to 40% conversion forming a first partially polymerized mixture, (B) continuously charging said first mixture to a second reaction zone operating at about 50-90% conversion forming a second partially polymerized mixture, and finally, (C) separating the residual monomer from said second mixture providing a polyblend of a matrix phase of said monomers having polybutadiene rubber particles grafted with said monomers dispersed therein, the improvement comprising: charging a monomer-polybutadiene solution in step (A) having in addition about 1 to 10% by weight of a diene block copolymer and about 1 to 20% by weight of a polymer of said monomers dissolved in said solution followed by carrying out steps (B) and (C) to provide a polyblend of a polymer of said monomers having dispersed therein rubber particles grafted with said monomers, said rubber particles containing said polybutadiene and diene block copolymer rubbers and forming a gel phase of said rubber particles containing grafted and occluded polymers of said monomers in an amount of about 0.5 to 5 parts per part of total rubber. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4421895-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5506304-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4524180-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1201693-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1201693-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6657010-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5569709-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4567232-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5414045-A |
| priorityDate | 1980-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 250.