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US5139927A Permanent yellow imaged light modulating film 失效
永久黄色成像光调制膜

Permanent yellow imaged light modulating film
摘要:
This invention relates to the preparation of a supported modulating film having a permanent yellow imaged layer of the homopolymer of a crystalline diacetylene cinnamate monomer ##STR1## and to the use of said film as a light modulator in the production of master printing plates or printed circuit boards.
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