http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02208904-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_646018b7183a929bbb6e26dcdb62a8da |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F7-02 |
| filingDate | 1989-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87c8d2a32a068a8483bf32e14f2b9c8f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85e61bb16b3c3e7e3e1ee98c9b589e81 |
| publicationDate | 1990-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02208904-A |
| titleOfInvention | Excellent corrosion-resisting permanent magnet and manufacture thereof |
| abstract | PURPOSE: To obtain a magnet having excellent corrosion-resisting property by a method wherein a chromate film, a silane coupling agent and poly- paraxylylene film are laminated on the surface of a rare-earth iron permanent magnet body or on the surface of rare earth-iron magnetic powder. n CONSTITUTION: A chromate film is obtained by dipping a permanent magnet body into a chromic acid solution, and by drying it up. Then, said film is treated with γ-methacryloxypropyltrimethoxysilane, and poly-paraxylylene is vapor- deposited. As silane coupling agent shows a condensation reaction, no reaction is shown unless there is an oxide film on the surface of the permanent magnet body. Consequently, the reaction of the permanent magnet body or magnetic powder with the silane coupling agent using the chromate film can be accelerated, the close-contactedness poly-paraxylylene can be improved, and a magnet having excellent corrosion-resistance can be obtained. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109891533-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109891533-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020503083-A |
| priorityDate | 1989-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.