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Product Printing. Plate. Development. Alkaline. USA. K.

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 06.99
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS Method for providing an image comprising developing an imagewise exposed positive-working lithographic printing plate with an aq alkaline developing compn having a pH 12-14 & comprising
- K silicate in amount to provide 40-60 g SiO2/1000 g of
compn & wt ratio SiO2/K2O 0.7 - 1.0
- Glycerine thickener (6-18 %)
PATENT PHOTOCOPY Available on request

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