http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1125631-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-04 |
| filingDate | 1966-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1125631-A |
| titleOfInvention | Prevention of cold flow of polymers in conjugated dienes |
| abstract | 1,125,631. Diene polymers. PHILLIPS PETROLEUM CO. 22 Feb., 1966 [23 Feb., 1965], No. 7730/66. Heading C3P. Diene polymers are made by polymerizing one or more conjugated dienes with or without one or more copolymerizable monovinyl aromatic compounds in the presence of a catalyst of the formula RM x , where R is an aliphatic, cyclo-aliphatic, or aromatic hydrocarbon radical, M is an alkali metal atom and x is an integer of 1 to 4, adding prior to inactivation of the catalyst a tin compound of the formula R x SnZy, where R is a hydrocarbyl radical, Z is halogen, oxygen, sulphur or various specified radicals containing oxygen or sulphur, x is 0, 1, or 2, y is 2, 3, or 4, and the sum of x+y is 4, deactivating the catalyst and recovering the polymer. The polymers after recovery may be mixed with a mildly acidic compound such as stearic acid or stannic acid. Specified dienes are 1,3-butadiene, isoprene, piperylene, and 2,3 - dimethyl 1,3 - butadiene. Specified aromatic compounds are styrene, 3-methyl. styrene, 3,5-diethylstyrene, 4-n-propylstyrene, and 1- and 2-vinylnaphthalene. The Specification contains a long list of suitable tin compounds. The polymerization is carried out in a conventional manner. The exemplified catalyst is n-butyllithium. Exemplified polymers are polybutadiene and block copolymers of butadiene and styrene. The polymers may be vulcanized and the Specification gives details of processing conditions and physical properties of the cured polymers. |
| priorityDate | 1965-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.