| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_32f3c37b7a3ee642fc13d9afee675547 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-60 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-0084
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C3-063 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-00 |
| filingDate |
1993-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2834bd3088c0df08dec27cfde3e21de4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c75e5c632e256b456bb82397e053e9ce |
| publicationDate |
1993-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0576159-A2 |
| titleOfInvention |
Composite pigmentary material |
| abstract |
A new process for preparing a composite pigment from titanium dioxide and calcium sulphate is provided in which the calcium sulphate is milled to a particle size less than 10 microns, mixed with titanium dioxide and the mixed particulates are coated with an oxide or hydrous oxide of a metal or silicon. n The process can particularly be employed in conjunction with a sulphate-process titanium dioxide plant in which by-product sulphuric acid is converted to gypsum. n The composite pigment shows improved optical properties in comparison to a mixture of titanium dioxide and gypsum. |
| priorityDate |
1992-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |