http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1056411-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2911 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J19-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C3-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01B3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J19-44 |
| filingDate | 1964-01-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1967-01-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1056411-A |
| titleOfInvention | Improvements in inorganic bonded reconstituted mica sheet |
| abstract | <PICT:1056411/C1/1> A reconstituted mica sheet comprises comminuted mica particles and a binder consisting of B2O3, K2O and P2O5 in the relative mol percentages lying within the area defined in the accompanying ternary diagram by the lines AB, BC, CD, DE, EF, FG, GH, and HA. Mica pulp, comminuted by known methods, and freed of ultra fine and coarse particles, is formed into a wet sheet on paper making apparatus, dried and calendered, and the solution containing the binder applied thereto, e.g. by painting on. Alternatively, the binder may be added to the pulp or applied to the wet sheet. The binder constituents may be provided by K2B4O74H2O, KH2PO4, H3BO3, H3PO4 and KOH in aqueous solution. The treated sheet is dried, e.g. at 89-95 DEG C. for about 1 hour until the moisture content is less than 1%, removed from the apparatus, and remoistened to a moisture content of 1-10%. The moistened sheet is pressed at up to 4000 p.s.i., preferably 500 p.s.i. at, e.g. 200 DEG C. for, e.g. 2 hours, and baked at 560 DEG C for about 1 hour. Preferably, before baking, the sheet is exposed to a rise in temperature from about 90 DEG to 175 DEG C. over a period of from about 8 to 24 hours. The sheet produced by the process has improved flexural strength, and after two hours water immersion and re-drying, recovers at least 88% of its flexural strength. |
| priorityDate | 1963-01-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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