http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-892782-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-04 |
| filingDate | 1960-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1962-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-892782-A |
| titleOfInvention | Process for the production of high-polymeric alkyl and aryl-siloxanes |
| abstract | High-polymeric siloxanes are obtained from lower polymeric siloxanes containing si-bonded OH groups by adding thereto a carboxylic acid halide in amount of from 0,1 to 1% (inclusive) by weight. Halides specified are acetyl chloride, acetyl bromide, chloracetyl chloride, 2-chlorophenoxyacetyl chloride, propionyl chloride, 3-chloropropionyl chloride; isovaleric, stearic, oleic, oxalic and succinic acid chlorides. Residual acid chloride and its reaction products, when all are volatile, can be removed from the polymer by blowing, if desired, under vacuum. In a typical Example (1) an a -o -dihydroxydimethylpolysiloxane of 18,000 cs. at 20 DEG C. was mixed with acetyl chloride and kneaded for 5 hours at room temperature to yield a siloxane of 6,000,000 cs. viscosity at 20 DEG C. This polymer was then mixed with silica, diphenylsilanediol and dicumyl peroxide and heat cured to an elastomer. |
| priorityDate | 1959-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.