Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1042 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
filingDate |
1991-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1992-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c486e240fe8c471a1e67b0e7d7ec652 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_504b343feeabc63c68dd9a326a491214 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ff1d80eff842f9b38bdf8537b4e7248 |
publicationDate |
1992-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-5145558-A |
titleOfInvention |
Composition for alkaline peroxide bleaching of wood pulp using a quaternary amine as additive |
abstract |
A composition for alkaline hydrogen peroxide bleaching of mechanical wood pulp which employs a quaternary amine compound, such as (3-chloro-2-hydroxy-propyl) trimethyl ammonium chloride, in the stabilized bleach solution. The brightness of the final paper product made from such bleached pulp shows marked improvement over that in which only chelating agents are employed to improve the brightness according to the known art. The process is useful in both silicate and silicate-free bleach solutions. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008289783-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5356464-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7892397-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005217813-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7351764-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5593543-A |
priorityDate |
1989-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |