G - Physics – 03 – F
Patent
G - Physics
03
F
96/177
G03F 7/038 (2006.01) C08L 31/02 (2006.01) C08L 51/00 (2006.01) G03F 7/033 (2006.01)
Patent
CA 2023251
O.Z. 0050/41056 Abstract of the Disclosure: The novel water-soluble or water-dispersible photopolymerizable mixture, comprising the following components: A) from 46 to 53% by weight, based on the total weight of the mixture, of a binder consisting of a1) from 20 to 80% by weight, based on the total weight of the binder, of a polyvinyl alcohol resin having a degree of hydrolysis of from 75 to 85% and a number average degree of polymer- ization ?n of from 250 to 350, a2) from 20 to 80% by weight, based on the total weight of the binder, of one or more graft copolymers of vinyl alcohol and alkylene oxides having a degree of hydrolysis of more than 80% containing from 10 to 40% by weight of alkylene oxide units and possessing a weight average degree of polymerization ?w of from 300 to 500, and a3) from 0 to 60% by weight, based on the total weight of the binder, of one or more polyvinyl alcohol resins having a degree of hydrolysis of more than 75% and a number average degree of polymerization ?n of from 350 to 450, B) from 35 to 44% by weight, based on the total weight of the mixture, of one or more water-soluble mono- functional monomers, C) from 6 to 9% by weight, based on the total weight of the mixture, of one or more polyfunctional monomers and D) from 0.4 to 5% by weight, based on the total weight of the mixture, of one or more photopolymerization initiators is very useful for the production of photopolymerizable recording layers of novel photosensitive recording elements. The said recording elements are particularly suitable for the production of newspaper printing plates.
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
Littmann Dieter
LandOfFree
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