Інститут Проблем Матеріалознавства Ім. І.М. Францевича Ан України
Институт проблем материаловедения им. И.М. Францевича АН Украины
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Application filed by Інститут Проблем Матеріалознавства Ім. І.М. Францевича Ан України, Институт проблем материаловедения им. И.М. Францевича АН УкраиныfiledCriticalІнститут Проблем Матеріалознавства Ім. І.М. Францевича Ан України
Priority to UA4307480ApriorityCriticalpatent/UA11369A1/en
Publication of UA11369A1publicationCriticalpatent/UA11369A1/en
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Abstract
The invention relates to masking plates. The masking plate comprises a masking layer substrate translucent for actinic radiation on its surface comprising transparent and nontransparent areas made of praseodymium oxide in accordance with a layout drawing. The transparent areas of the masking layer are made of a praseodymium sesquioxide.
UA4307480A1987-09-181987-09-18Masking plate and its manufacturing mrthod
UA11369A1
(en)