http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1522228-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_424db9d56b06a23aed410fcf5df652f3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_669c01133740c5233f2c8738904ea3af |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-388 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-0757 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41N1-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L83-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F30-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41N1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-388 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F299-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L83-08 |
| filingDate | 1976-04-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-08-23^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1522228-A |
| titleOfInvention | Planographic printing plates and a method of preparing them |
| abstract | 1522228 Coated printing plates DAI NIPPON PRINTING CO Ltd and SHIN-ETSU CHEMICAL CO Ltd 8 April 1976 [14 April 1975] 14437/76 Heading B2E [Also in Divisions C3 and G2] The ink-repellent areas of a planographic printing plate comprise a photopolymerized layer of a photopolymerizable polysiloxane or silane of the average unit formula wherein R<SP>1</SP> is a monovalent aromatic or heterocyclic group, R<SP>2</SP> is H, halogen, CN or a C 1-4 hydrocarbon group, R<SP>3</SP> is a C 1-10 divalent hydrocarbon group, R<SP>4</SP> is a monovalent hydrocarbon group, X is OH or a hydrolysable group, a is 0 or 1, b is positive but not over 1, c and d are each 0-3, and b+c+d does not exceed 4. The compound is applied in organic solution to a substrate and the coating dried then exposed to light through a positive transparency; the plate is then washed with a solvent which removes the unexposed coating, leaving an inkrepellent image. In Examples an aminosilane H 2 N-CH 2 CH 2 CH 2 -Si(OET) 3 (or, in Exs. 4 and 11, H 2 N - CH 2 CH 2 - NH - CH 2 CH 2 CH 2 -Si(OET) 3 ), followed by phenylmaleic anhydride, is added to a cohydrolysate of Me 2 SiCl 2 and Ph Si Cl 3 or to a reaction product of hydrolysed Ph Si Cl 3 with a chlorine-terminated polydimethylsiloxane, optionally containing CH 3 (CF 3 C 2 H 4 )SiO units (Exs. 3 and 10); the amino silane and anhydride may be prior reacted (Ex. 2); in other Examples a polysiloxane of mono (phenylmaleimidoproypyl) siloxane unit is condensed with the product from hydrolysed PhSiCI 3 and HO- or CI- terminated polydimethylsiloxanes. The products contain 0.1-4 phenylmaleimidopropyl siloxane units, 3-100 Ph SiO 1-5 units, 100-1000 Me 2 SiO units, and in Exs. 3 and 10 200 or 250 units CF 3 C 2 H 4 Si(Me)O, and are obtained as 15% solutions in toluene. These solutions are applied to Al plates, dried, exposed to light from a mercury lamp, through a transparency and developed with xylene or toluene; in Ex. 2 a Zn plate and a xenon lamp are used. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3421477-A4 |
| priorityDate | 1975-04-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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