http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01190732-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_805883408c251b3b421ba4bcfb2c0eb7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-16 |
| filingDate | 1988-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c7e6de04d86b88328b0a45318e09195 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da893b36229f9f3d18e09e75f1a92a41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5316286d667721330d73be568d39159 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f7265a7b723a1561ad64e182996a1c8 |
| publicationDate | 1989-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01190732-A |
| titleOfInvention | Preparation of diorganopolysiloxane having one si-bonded hydroxyl groups in each terminal unit |
| abstract | PURPOSE: To prepare diorganopolysiloxanes having a desired viscosity and a narrow molecular weight distribution at a low cost and in good yield, by reacting a cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate with a specific amount of diorganochlorosilane in the presence of phosphonitrile chloride, then applying water treatment and distillation. n CONSTITUTION: The diorganopolysiloxane having one Si-bonded chlorine atom in each terminal unit is prepared by reacting (A) cyclic diorganopolysiloxane of formula I, wherein R 2 represents a hydrocarbon halide group having 1 to 18C; (n) is 3 to 11 and/or (B) diorganodichlorosilane hydrolyzate with (C) 0.1 to 3 wt.% of diorganochlorosilane of formula II based on the weight of A and/or B component in the presence of (D) 1 to 50 ppm by weight of phosphonitrile chloride based on the total weight of the organosilicon compounds employed. The reaction mixture is treated with water or aqueous solution until having a pH of 5 to 9. After an inactive solvent such as benzol etc., is added, if desired, and the aqueous layer is separated, the low-boiling components are removed by distillation. n COPYRIGHT: (C)1989,JPO |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03292329-A |
| priorityDate | 1987-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.