US Patent 7923524 Silicone copolymer having condensed polycyclic hydrocarbon group
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Patent abstract
Provided is a novel silicone copolymer which exhibits high absorption even in a far-ultraviolet region of 200 nm or more, and also is soluble in an alkaline reagent since it has a phenolic hydroxyl group. The silicone copolymer comprises a silsesquioxane having a phenol unit and comprises a silsesquioxane having a condensed polycyclic hydrocarbon.
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Patent Inventor Names
Takeshi Nishikawa0
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US Patent 07923524 Silicone copolymer having condensed polycyclic hydrocarbon group US Patent 7923524 Silicone copolymer having condensed polycyclic hydrocarbon group
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Patent Number
07923524
Patent Number
7923524
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US Patent 07923524 Silicone copolymer having condensed polycyclic hydrocarbon group
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Patent jurisdiction
Patent number
07923524
Date of patent
April 12, 2011
Patent application number
11910525
Date Filed
April 3, 2006
Patent primary examiner
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