Photosensitive resin material and resin film

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United States of America Patent

PATENT NO 9874813
SERIAL NO

14698904

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Abstract

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A photosensitive resin material of the invention is a photosensitive resin material used to form a permanent film including one or more selected from a novolac-type phenol resin, a phenol aralkyl resin, and a hydroxystyrene resin as an alkali-soluble resin (A) and a photosensitive diazoquinone compound as a photosensitizing agent (B), in which a content of iron with respect to all non-volatile components, which is measured through flameless atomic absorption spectroscopy, is equal to or more than 0.005 ppm and equal to or less than 80 ppm, and non-ionic iron is included as the iron.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO BAKELITE CO LTD5-8 HIGASHI-SHINAGAWA 2-CHOME SHINAGAWA-KU TOKYO 140-0002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tanaka, Yuma Tokyo, JP 12 11

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