http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1168864-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2df490b22c116321d79d7437b3baba8f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-1555 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-155 |
| filingDate | 1981-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1984-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5625ca1c770479d431de524b69e2d293 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41f5e76229edb2bd1a0d350ce97aa839 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb2ad3dce9e16b25724b7adcab8cf578 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e51e249a4202a0064b41183425fa8f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce1f7b4703252f716aec02942c32bb61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_979eec70cedd986122fea7f6f3d2e940 |
| publicationDate | 1984-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1168864-A |
| titleOfInvention | Clay mineral color developer for pressure sensitive recording paper and process for producing same |
| abstract | Title of the invention NOVEL CLAY MINERAL COLOR DEVELOPER FOR PRESSURE SENSITIVE RECORDING PAPER AND PROCESS FOR PRODUCING SAME Abstract of the disclosure A color developer for pressure sensitive recording paper which is derived from a clay mineral having a layer-structure composed of regular tetrahedrons of silica and which shows (A) the diffraction pattern attributable to the crystals of layer-structure composed of regular tetrahedrons of silica when subjected to an electron diffraction analysis, but (B) substantially no diffraction pattern attributable to the crystals of said layer-structure when subjected to an X-ray diffraction analysis, and which (C) contains as the constituting elements besides oxygen, at least silicon, magnesium and/or aluminum. This color developer is produced by acid-treating a clay mineral having a layer-structure composed of regular tetrahedrons of silica until its SiO2 content reaches 82 -96.5% by weight on dry basis (drying at 105°C. for 3 hours), contacting the resulting clay mineral, in an aqueous medium, with a magnesium and/or an aluminum compound or compounds which are at least partially soluble in said aqueous medium, neutralizing the system with an alkali or an acid to form hydroxide when the soluble compound or compounds employed are other than hydroxides, whereby introducing into the acid-treated clay mineral a magnesium and/or an aluminum component, and drying the product if desired. The color developer of this invention exhibits an improved color-developing ability particularly to the primary color development dye and an improved color-developing ability to the secondary color development dye, and shows excellent light resistance after the color development, little reduction in the color-developing ability after storage in an atmosphere of` a high humidity and high temperature. |
| priorityDate | 1980-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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