| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03627f82d4edc6567f9627df6efdde5d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-11 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41N3-034
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41N3-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41N3-038 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41N3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41N3-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-00 |
| filingDate |
1994-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7934f72fad9109f93401c2115cb616f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8beff1def7b4330ac6b58d8c85c2e148
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39f0211cefc66a231ff5647ab0e749b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_feb926862f0f05d5085a5a59c2050cf1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d116162ee0cc6037991c26121088ffb9 |
| publicationDate |
1996-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0721397-A1 |
| titleOfInvention |
Process for preparing improved lithographic printing plates |
| abstract |
Provided herein is an improved process to prepare lithographic printing plates. An embodiment of the process comprises mechanical graining of the substrate surface, followed by electrochemical graining in an acid medium using a symmetrical alternating current in the range of 10-500 coulombs/dm2, and then conditioning of the surface by treating it with a solution of partially neutralized polyvinylphosphonic acid maintained in a pH range of about 2.5 to 6. Such a process yields lithographic plates with high adhesion, excellent contrast and reduced background toning. |
| priorityDate |
1993-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |