| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_494d110b65917569bb659b329ee91ae0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H19-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H19-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-67 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-67 |
| filingDate |
2008-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_508a0dd8fc5421b0e2b063f703df261d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac830b28a5b75558d71454d42cdb12ab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ddffb1101e24f2230bb05f1ebf9f214 |
| publicationDate |
2008-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1967649-A1 |
| titleOfInvention |
Concentrated aqueous gypsum suspensions and their use in paper production |
| abstract |
Process for the preparation of paper characterised by the fact that an aqueous gypsum suspension having Brookfield viscosity at 25°C and 100 rpm comprised between 100 and 1,000 mPa·s and containing from 60 to 85% by weight of gypsum in the form of calcium sulphate dihydrate (Ca 2 SO 4 .2H 2 O) is added to the cellulose aqueous suspension used for the production of paper, the aqueous gypsum suspension containing from 0.1 to 2% by weight of an acrylic sulphonated polymer, or of an acrylic carboxylated polymer or of a polynaphthalene sulphonate, and from 0.1 to 1.0% by weight of an organic polyphosphonate. |
| priorityDate |
2007-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |