http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1291970-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2203-0264 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2203-0537 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-064 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F291-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-031 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-032 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-032 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F291-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-031 |
| filingDate | 1969-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1291970-A |
| titleOfInvention | Photopolymerisable elements containing hydrophilic colloids and polymerisable monomers for making plate resists |
| abstract | 1291970 Photopolymerization E I DU PONT DE NEMOURS & CO 8 Oct 1969 [9 Oct 1968 7 Aug 1969] 19591/72 Divided out of 1290727 Heading C3P [Also in Division G2] A photopolymerizable element comprises an etchable support bearing a photopolymerizable layer comprising a hydrophilic macromolecular organic polymer dispersion medium including a dispersed phase containing as the sole imageforming system ; (1) at least one addition polymerizable ethylenically unsaturated monomer at boiling point above 100‹ C. at normal atmospheric pressure, and (2) an organic photoinitiator system, activatable by actinic light, in an amount of from 0À01 to 20À0% by weight of the total solids in said dispersion. Preferred dispersing media are aqueous solutions or dispersions of gelatine or polyvinyl alcohol; pre ferred monomers are pentaerythritol triacrylate and/or trimethylolpropane triacrylate, and preferred initiators are 9,10-phenanthraquinone and/or 4,4<SP>1</SP> - bis - dimethylaminobenzophenone, or a 2-(o-chlorophenyl)-4,5-diphenylimidazolyl dimer and certain dyes. Resist images are formed by imagewise exposing the element, etching the etchable surface, and washing to remove residual etching solution and the resist. In this way, printed circuits may be produced. An example describes the exposure and etching of a copper plate coated with a composition in which the hydrophilic polymer is gelatine, the monomer is diacetone acrylamide mixed with trimethylolpropane triacrylate and the initiator is 9,10-phenanthraquinone and 4,4<SP>1</SP>-methenylbis - [1 - (p - sulfophenyl) - 3 - methylpyrazolone- 5]. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5045429-A |
| priorityDate | 1968-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.